Microwave Installation Problems and Solutions

International Journal of Research in Computer and
Communication Technology, Vol 4, Issue 1, January - 2015
ISSN (Online) 2278- 5841
ISSN (Print) 2320- 5156
www.ijrcct.org Page 1
Analysis for identify the problems of microwave installations and
Solutions
Mohammad Arifin Rahman Khan1
, Jafar Ahmed 2
, Md. Sadiq Iqbal3
,
Mohammed Ibrahim Hussain4
, Md. Asraful Islam5
, Md. Sarwar Pervez6
Lecturer (Team Supervisor), CSE Department, Bangladesh University, Dhaka, Bangladesh 1
Student, CSE Department, Bangladesh University, Dhaka, Bangladesh2
Associate Professor, CSE Department, Bangladesh University, Dhaka, Bangladesh 3
Assistant Professor, CSE Department, Bangladesh University, Dhaka, Bangladesh 4
Student, CSE Department, Bangladesh University, Dhaka, Bangladesh5
Lecturer, CSE Department, Bangladesh University, Dhaka, Bangladesh 6
arifin.khan@bu.edu.bd1
, jafar.bu.cse@gmail.com2
, sadiq.iqbal@bu.edu.bd3
, Ibrahim.hussain@bu.edu.bd4
,
asraful.bu.cse@gmail.com5
, sarwar.pervez@bu.edu.bd6
Abstract— The telecommunication system includes the
transmission of a data bearing electromagnetic signal
through a physical medium that differentiates the
transmitter from the receiver. The relative effect of these
elements on reliable communication relies on upon the rate
of data transmission, on the craved loyalty upon gathering,
and on whether communication must happen in "real
time", for example as in phone conversations and video
teleconferencing. Moreover, microwaves are generally
utilized for point-to-point communications. Doubtlessly,
the telecom area has got a considerable measure of profit
from that communication technology additionally causes
some exception issues. Working with equipment that
works in this district obliges exceptional knowledge and
skills impressively unique in relation to those required for
traditional electronic equipment. Be that as it may, this
paper has examined for the issues of microwave
installation and demonstrates the accurate solutions for
the successful mobile communication world.
Index Terms— Global Positioning System (GPS), Line of
Sight (LOS), Receive signal level (RSL), Radio Unit
(RAU), intermediate Frequency (IF)
I. INTRODUCTION
The technology communication of Microwave is the
transmission of signs by means of radio utilizing an
arrangement of microwave towers. The engineering utilized
for microwave communications was created in the early
1940's by Western Union [1]. The primary microwave
message was sent in 1945 from towers spotted in New York as
well as Philadelphia [1]. Emulating this effective endeavor,
microwave communication turned into the most usually
utilized information transmission technique for information
telecommunication service providers. With the improvement
of satellite and cell advances, microwave has gotten to be less
broadly utilized as a part of the information transfers industry
like in the sector of telecommunication. The technology
communication has established with the help of Fiber-optic is
currently the predominant information transmission system;
but the equipment of microwave communication is still being
used at numerous remote destinations where fiber-optic
cabling has not possible to be able economically installed.
Therefore, it will need to investigate for identify the
unexpected Microwave communication network error and
therefore, this article has analyzed the Microwave
transmission installation problems and make their solutions
for a successful Microwave communication and technology
world.
II. LITERARY REVIEW
RF transmission lines, microwave consolidating, Antennas,
radios and isolating parts are the components of microwave
frameworks basic to these groups; however their qualities shift
enormously over this reach.
Antennas: The principle sorts of antennas for microwave
line-of-sight communications are parabolic as well as horn-
reflectors. The antennas of parabolic are accessible for each
and every one microwave radio bands, yet their sizes and
qualities over that range differ extraordinarily [2]. Some are
intended for low-limit frameworks, for example grid antennas,
others for high- gain as well as high-limit, for example, a 12'
robust parabolic in the midst of shield and random. A few
parabolic can be defined to join with coaxial transmission
lines and others to waveguide. As a rule the antennas of
parabolic are utilized for single RF channel joins. The
exemption to this tenet is the 4-port multiband radio wire

ISSN (Print) 2320- 5156
which works in two groups all the while with both
polarizations for each one band. The antennas for multiband
can be utilized for recurrence assorted qualities for a solitary
channel or run two autonomous channels at the same time [2].
In the system of double polarization frequency reuse, two
radios place free baseband motions on the vertical as well as
horizontal polarizations of the similar carrier frequency,
multiplying the limit of every frequency channel [3]. Fig. 1
shows how this is a moderately productive channel course of
action, however to be workable, it depends on an atypical state
of cross-polarization discrimination (XPD) of parabolic
antennas that are uncommonly intended for this plan [2]. In
addition to, the vital point of ultrahigh speeds and elongate
distances for the data communications, modulation is in
generally passed out via an external or direct modulator. In the
situation of a huge data transmission like 2.5 Gbps to 10 Giga
bit per second or more, the External modulation has able to
control that circumstance.
Figure 1: Dual Polarization frequency reuse
Horn-reflect ors are substantial wideband radio wire
frameworks that are expected for utilization on connections
with numerous parallel RF channels. The radiation example of
a horn-reflector is tightly controlled, and this permits it to be
utilized at intersection stations without bringing on obstruction
on the same connection or to different connections. On behalf
of both antenna sorts, the execution qualities are addition
(referenced to an isotropic antenna), the half-control beam-
width, attenuation of area lobes, and the reflection element.
RF Transmission Lines: The two fundamental classes of RF
transmission lines are coaxial link as well as waveguide.
Inside each one class there are numerous sub-sorts, for
example, air dielectric persuade or froth filled coax, or
roundabout, rectangular, or circular waveguide. Moreover,
there are more than one conductors who have able to
transmission by a coaxial line are the inside conductor as well
as the external roundabout conductor that encases the core
conductor (Fig. 2). This development prevents loss of signal
force, shields the signal in opposition to noise, and is not
difficult to set up. The utilization of coaxial links in
microwave work is restricted to frequency bands underneath
around 3 GHz.
Figure 2: Types of communication Transmission Lines
Designed for upper microwave frequencies, signal
misfortunes in coaxial links get to be over the top, and it is
worthwhile to utilize waveguide as a transmission line.
Waveguide has inferior attenuation and more prominent force
taking care of ability than coax, however is harder to set up. In
the event that a double band or double polarization antenna is
utilized, two transmission lines must be joined with the
antenna. A solitary antenna which is double band and double
polarization has ports for four lines [2].
Combiners and Dividers: Microwave combiners as well as
dividers are passive devices that empower a few transmitters
and a few receivers to be associated with a single antenna, or
two radio wires to be joined into a solitary recipient. A portion
of the different setups of circuit components which go about
as combiners or dividers are circulator systems, extension
systems, branching or expanding networks, polarization filters
[4].
Radios: Since the appearance of digital radios, the key
fields for engineering advancement keep on being:
(1) high-level modulation for more prominent transmission
limit and range effectiveness, in bits/second/hertz; (2) pre-
distortion and versatile balance to adjust for multipath
blurring; (3) double polarization, likewise for higher range
productivity by multiplying route capacity; (4) one- frequency
rehashing, an alternate range proficiency procedure, which
utilizes superior antennas and transmitter force control to
empower co- frequency broadcast as well as make response on
the same connection; (5) high-thickness expanding which
utilizes obstruction wiping out methods to empower a wide
assortment of radio frameworks to exist together at each one
system hub; (6) higher frequency bands in the millimeter-
wave and in the optical spectrum ranges for more noteworthy
limit; and (7) route assorted qualities that switches adaptively
to interchange bounces and expands accessibility, especially
for the higher frequency bands. In favor of high-level
modulation (64-QAM as well as higher), co-channel double
polarization operation obliges computerized radios to include
a XPIC, which balances the inclination of a signal on one
polarization to meddle with the signal on the orthogonal
polarization, and the other way around.
Most improvements in computerized microwave radio
frameworks fall into two classifications:
(1) Expanding transmission unwavering quality,(2) more
effective use of the accessible radio range. Given the
defenselessness of digital signals to particular fading, and the
need to make high-level modulations for ghostly proficiency,
the versatile equalizer is a fundamental piece of advanced
microwave radios. The task of receiver is the most basic
communication job. To demodulate a signal, a computerized
radio must synchronize a nearby oscillator, in frequency and
phase, to a got transporter, separate symbol timing, and
assessment the estimations of received data symbols. For the
little portion of time that a connection is influenced by
multipath fading, these collector operations may be definitely
debilitated unless versatile strategies are utilized. Thusly,

ISSN (Print) 2320- 5156
versatile capacities are incorporated notwithstanding standard
recipient function blocks, for example, settled channels,
enhancers, and down-converters, amplifiers as well as fixed
filters. After some time, it has been observed that there is
critical association between these versatile capacities,
subsequently their ideal blend for countering extreme blurring
keeps on being a zone of intense design effort.
Site Requirements: Tools block designs are the method for
condensing gear prerequisites at each one site and
characterizing their utilitarian interrelationships. Block
diagrams are additionally used to record significant
framework parameters, for example, transmit and waveguide
lengths, receive frequencies, transmitter power, antenna sizes
as well as polarizations, and so forth. Individual equipment
pieces ought to be portrayed and extraordinarily distinguished
so that no gear will be neglected.
III. MICROWAVE TRANSPORT APPLICATIONS
There are two sorts of Microwave supplies being conveyed
today, Packet and Hybrid Microwave. They are utilized as a
part of both completely bundle arranged systems and systems
that transport both TDM voice and packet data traffic [5].
One of the essential employments of Microwave transport
applications is associating clients to center nodes. Figure 3
above shows the sorts of technologies that are frequently
associated with a Microwave foundation.
Figure 3: Microwave transport and infrastructure
The left half of the figure represents the sort of clients
regularly associated with a microwave transport framework.
a) Mobile access, fitting in with the diverse eras of
mobile services
b) Fixed devices (corporate client edge or remote VDSL
units) to unite clients to altered broadband access
c) Customer premises equipment (CPE)
The privilege side of the figure outlines associations in
the center nodes: i) BSC, RNC and MME / SGW for mobile
administrations (second Generation, third generation, and four
generation separately), ii) BNG for fixed broadband right to
use, iii) PE router or switch for big business applications
Correspondingly Microwave transport applications empower
associations with and from remote destinations as a
component of a conglomeration and/or distribution system for
other traffic types. An incomplete rundown of these
applications incorporates: a) Broadband systems to backing
the transformation to advanced TV, b) Broadband systems to
help DSL get to in rustic regions, defeating the separation
restrictions of the DSLAM and broadband spine, c) Back up
routes to Fiber for system security, d) Stretch out system
scope to remote areas or as an option to Fiber spine systems.
These applications are getting to be more imperative as
administration suppliers help rich media applications such as,
video conferencing, video, E-Learning, disaster recovery,
video surveillance and VoIP [5]. The development of these
applications and cell backhaul is helping a development in
Microwave organizations.
Figure 4: Microwave Radio Application Forecast
Figure 4, shows how Microwave transport for access
system arrived at twelve percent of the aggregate point-to-
point Microwave showcase in 2009, transcendently
determined by the increment in Ethernet traffic. Other
backhauls applications arrived at 14%. These applications are
assessed to speak to around 18% of the general point-to-point
showcase by 2014. This is assessed to be more or less $1.9
billion USD agreeing the Sky Light Research report titled
"Microwave Point-to-Point Radio Market Trends & Forecast
Analysis 2009 – 2014”.
IV. METHODOLOGY
Parcel and Hybrid Microwave innovations were created to
help the traffic evolution of service supplier systems while
offering the same or better level of service unwavering quality
and adaptability. Accordingly, E-Line and/or ELAN services
backed by Microwave advances can be consistent to MEF-9
for service usefulness and MEF-14 for service performance.
Most Microwave tools include usefulness for MEF-8/ MEF-
18, determining circuit emulation and ATM pseudo-wire
procedures. These abilities make Ethernet the normal
transmission layer for transporting any sort of subscriber
traffic.
To follow E-Line and E-LAN service necessities
Microwave frameworks can be sent as point-to-point, nodal or
ring.

ISSN (Print) 2320- 5156
a) A point-to-point framework gives network between
two focuses just.
b) A Microwave nodal framework all the while helps
different radio guidelines.
Point-to-point is the most widely recognized microwave
application and is by and large used to amplify benefit in
ranges were Fiber and/or Copper are not accessible or as a
backup route to the terrestrial network.
A Microwave nodal network is commonly sent in the
collection purposes of a transport system. Access radio
connections are prepared and exchanged to distinctive
purposes of fixation or conglomeration relying upon the traffic
prerequisites of the system. The ring designs are utilized to
give burden adjusting and strength qualities. A Microwave
ring topology is a particular arrangement of a nodal
framework where every nodal radio telecasts in two separate
headings associating with different hubs, which are be use to
close the circle permitting the whole design to be set up into a
ring system.
There are three essential capacities to consider in
microwave transport
i) Multiservice aggregation
ii) Networking
iii) Microwave transmission
Multiservice conglomeration is the capacity of tolerating
numerous source streams from diverse applications as well as
technologies (Ethernet, ATM and TDM) and adjusting them to
the transport layer. TDM services can be transported natively
or in bundle structure relying upon the sort (packet or hybrid)
of microwave arrangement conveyed.
Networking refers alludes to all features identified with
sending of the service from source to end, keeping up the
normal quality and level of assurance on the information
plane.
Microwave transmission is the L1 capacity of bit
transport onto the radio channel alongside the related control
capacities, including the late advancements of versatile tweak
and administration mindfulness.
V. ANALYZE THE PROBLEMS AND SOLUTIONS FOR
MICROWAVE TRANSMISSIONS AND
INSTALLATIONS
1) Azimuth (Degree) and Path length are wrong
Azimuth (Bearing) is one of the vital installation issues for
Microwave link. That is related to the coordinate of both ends
for a Microwave communication link. Wrong Azimuth is
obstacle for that link Alignment, because Alignment cannot be
possible for wrong Azimuth and after follow the Microwave
worksheet -1 it has to clear that the Microwave link has
negatively influenced from the wrong Azimuth and path
length.
Table 1: Microwave Worksheet-1
Solution:
If the provided coordinate of one end of a link is wrong
then azimuth and path length of the link will be different than
the actual azimuth and path length. In that case we have to
collect correct information. For correct information we can
use a GPS (Global Positioning System). We have to check
coordinate both ends of the link by using GPS. If there found
any mismatch between provided and actual coordinate than
then we can found actual azimuth & path length by putting
actual coordinate in PL4 Software. In this way we can solve
this type of problem.
Moreover, from this paper has solved Azimuth (Degree)
and Path length problems from Microwave worksheet-2.
Table 2: Microwave Worksheet-2
2) LOS Issue:
LOS Means Line of Sight. If there are exist any kind of
obstacle at link path direction Such as Tree, Building, and

ISSN (Print) 2320- 5156
Brick field & other tower then link cannot be possible. In case
of brick field and tree sometime link can be possible but the
Receive signal level (RSL) will be high or out of range. In
LOS Survey this kind of situation is called marginally clear.
But in case of Building obstacle link cannot be possible
completely.
Figure 5: Line of Sight issue
Solution:
LOS Survey should be done before a Microwave Link
installation to avoid LOS issue. In that case for link
installation we have to choose other site or option. If the
situation is marginally clear and required RSL will high then
we can solve the problem by increasing TX power.
Figure 6: solution for Line of Sight problem
3) Polarization issue:
Polarization is another important issue for Microwave
installation. The Polarization of both ends of a Microwave link
will be same. Confliction of Horizontal & vertical polarization
may caused for high Receive Signal level (RSL).
Figure 7: wrong polarization
Solution:
Concentration is highly required during Microwave Link
installation to avoid polarization mismatch. The polarizations
of both ends have to be same for a Microwave Link.
According to Link budget if the polarization is Vertical for an
Mw link then it should be installed vertically polarized for
both ends.
Figure 8: solution for polarization mismatch
4) RAU OR ODU Faulty
Normally if a faulty RAU installed in Microwave link
system the RAU shows a faulty alarm. But sometimes the
RAU did not show any faulty alarm. In that case when IF
(intermediate Frequency) cable is connected to MMU card
then the RAU not appeared in software. Commissioning
cannot be possible with a faulty RAU in Microwave link
system.
Figure 9: Radio Units Interfaces
Solution:
A new RAU or ODU is required to solve this issue. After
identification of a faulty RAU or ODU it has to inform vendor
(Ericsson or Others) concern immediately for the replacement.
A new RAU or ODU of same model will be delivery by
vendor concern. Replaced new RAU or ODU can be used for
link installation.
5) RAU High and LOW Mismatch
RAU (Radio Unit) High-low mismatch is a significant fact
for Microwave link. If RAU installed with mismatch for an
Microwave link then commissioning would not be possible for
the particular link. As example for a 13 GHz brand link in a
need low frequency (12765 MHz) has planned but high RAU
(13/15) installed and other end high frequency (13031 MHz)
has planned but low RAU (13/11) installed. In that case the
link’s commissioning would not be possible.
Figure 10: RAU High and LOW Mismatch
Solution:
Link commissioning not possible due to RAU High low
mismatch. To avoid RAU high-low mismatch issue RAU

ISSN (Print) 2320- 5156
high-low has to set carefully according to the plan during
installation. High RAU have to set for planned high site and
low RAU have to set for planned low site. As example, for a
13GHz band link for 12765 MHz (low) frequency RAU
(13/11) and for 13031 MHz (High) frequency RAU (13/15) is
need to install.
6) Antenna Height issue
If one end’s installed Microwave antenna height will 20m
and other end installed Microwave antenna height will 25m
and an obstacle of 19.8m heighted exists between them, then
required RSL will not be found. In this scenario a problem
will be occur and this problem is called antenna height
problem.
Figure 11: Scenario (1) for Antenna height issue
Solution:
To solve this issue antenna height have to increase at lower
heighted end. For solution of above said example at lower
heighted end height need to increase from 20m to at least 23m
or more if applicable. After installation of Mw antenna at
increasing height then it may possible to find required RSL.
.
Figure 12: Solution for the scenario (1)
7) Cable installation Mismatch
In case of 1+1 Configured link if main MMU’s (Modem
Unit) IF cable will connect to stand by RAU or Main RAU’s
IF cable will connect to stand by MMU then it will be IF cable
installation mistake. As a result Required RSL will not be
found.
Figure 13: Cable Installation mismatch
Solution:
During the installation of 1+1 Configured Microwave Link
it has to highly note about proper installation & connection of
Main & Stand by IF Cable to avoid IF Cable installation
mismatch. Main IF cable must be connected with main RAU
& MMU card as well as Standby must be connected with
standby RAU & MMU card. Proper installation of IF cable
May give required RSL (Receive Signal Level).
8) Configuration Data Mismatch
Configuration data mismatch. As a result one end will not
be found from other end.
Figure 14: Configuration Data Mismatch
Solution:
During Commissioning of a Microwave link it has to
remember that Terminal ID, channel spacing, capacity
modulation, frequency etc data inputting must be same at both
Sep 21 14
Mohiuddin bazar
Latitude 22 34 56.53 N
Longitude 091 05 20.94 E
Azimuth 98.08°
Elevation 5 m ASL
Antenna CL 20.0 m AGL
Char bata
Azimuth 278.09°
Elevation 6 m ASL
Frequency (MHz) = 13000.0
K = 1.33
%F1 = 100.00
Path length (3.02 km)
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
Elevation(m)
0
5
10
15
20
25
30
35
Oct 25 14
Mohiuddin Bazar
Azimuth 98.08°
Elevation 5 m ASL
Char Bata
Azimuth 278.09°
Elevation 6 m ASL
Frequency (MHz) = 13000.0
K = 1.33
%F1 = 100.00
Path length (3.02 km)
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8
Elevation(m)
0
5
10
15
20
25
30
35

ISSN (Print) 2320- 5156
end. One end of a Microwave link would not be found from
other end for mismatch inputting of any configuration data. As
example, if one end’s channel spacing is 7 then other end’s
channel spacing have must be 7. If Configuration data of a
Microwave link remain accurate then it doesn’t create any
problem for the link.
Figure 15: Solution for the configuration data mismatch
VI. FUTURE INVESTIGATION
As the quick advancement of wireless communications
keeps on advancing, new procedures are utilized to expand the
limit and the QoS of the conveyed systems. The application of
smart antennas as well as MIMO systems obliges a
spatiotemporal characterization of wireless channel.
Notwithstanding to the path loss and time deferral spread;
angle-of-arrival also joint spatiotemporal models essential to
be vital for the improvement of modern wireless
communication systems.
VII. CONCLUSION
Microwave transmission systems have had real impact in
expanding the through limit of wide range systems and
telecommunications networks. Execution objectives for a
microwave transmission framework are gotten from the
framework prerequisites for the overall network. From this
article we have recognized a few sorts of microwave
establishment issues which have acted like a genuine
obstruction for continue with the assistance of microwave
innovation. Additionally this paper likewise has demonstrated
the proper answers for the telecom world.
ACKNOWLEDGEMENTS
We are the team for research wish to express ours deepest
appreciation to Prof. Dr .B.S.Virdee (London Metropolitan
University, United Kingdom) for acquainting us with the field
of Telecommunications and Microwave, which we exposed
tremendously fascinating. We are also showing ours special
thanks to MD. Abul Kalam Azad, IE Coordinator, Step One
Group. Finally, we would like to thank to the Bangladesh
University (Dhaka, Bangladesh) lab and library that are
always helped us by support valuable simulation software,
book, and research papers as well as thanks to Chitano Kumar
Sarker, Lab Administrator, Bangladesh University.
REFERENCES
[1] Brown, W.C (September 1984), “The history of
power transmission by radio waves”, Microwave
Theory and Techniques, IEEE Transactions on,
Volume 32, issue 9, pp. 1230-1242
[2] Ramesh, C. Gupta, Khagindra, K. (23 February
2012), “Investigation of factors depolarization
contributing in offset reflector antenna and trimmed-
reflector offset parabolic antenna with lower cross-
polarization”, International journal of RF and
Microwave Computer-Aided Engineering, Volume
22, Issue 3, pp. 411-420, DOI: 10.1002/mmce.20615
[3] O.M. Haraz, A. Sebak and T.A. Denidni (June 2012),
“Duel-polarised dielectric-loaded monopole antenna
for wideband communication applications”, IET,
Micr. , Antennas and Prob., pp.663-669
[4] Metro Ethernet Forum White Paper (March 2007)
“Carrier Ethernet - The Technology of Choice for
Access Networks”
[5] Alcatel Lucent, Leveraging Microwave Packet radio
to enhance and extend IP/MPLS Backhaul, available
link:http://www.tmcnet.com/tmc/whitepapers/docum
ents/whitepapers/2013/8615-alcatel-lucent-
leveraging-microwave-packet-radio-enhance-
extend.pdf
Khan, Mohammad Arifin Rahman
Received his M.Sc in Mobile and Satellite
Communications degree from London
Metropolitan University, London, United
Kingdom, 2010 and has completed the B.
Sc (Engg) in Computer Science and
Engineering degree from Asian University
of Bangladesh, Dhaka, Bangladesh . As
well as, he has made to upgrade his professional career
by the specialized certificate CCNA. He is also working with
the International Journal of Computer Science and Business
Informatics (IJCSBI) like an Associate Editor. His research
interests include mobility management, multimedia
transmission, and quality-of-service (QoS) provision issues in
next-generation wireless/mobile networks.
Ahmed, Jafar
He is the final year student of Bangladesh
University in B. Sc of Computer Science and
Engineering Department as well as he is
working like a System Engineer under Robi
Axiata ltd in Stepone Group. In future he
wants to like work in microwave
communication to earn a lot of knowledge about the wireless
sector.

ISSN (Print) 2320- 5156
Iqbal, Md. Sadiq
He has completed his M.Sc in Computer
Networks degree from Middlesex University,
London, Uk, 2005, also has got the another
Masters in Computer Science and
Engineering degree from National Technical
University in Ukraine, Ukraine. Moreover his
B.Sc in Computer Science and Engineering has completed
from the same university. At the moment he is involved in
Center for Excellence in Research, Entrepreneurship &
Teaching at Bangladesh University, Dhaka.
Hussain, Mohammed Ibrahim
He has completed the Masters in E-Commerce
from London, UK. He had completed
Bachelor Degree in Computer Science and
Engineering from The National Technical
University of Ukraine, Kiev, Ukraine. He has
successfully completed Cisco Certified
Network Associate (CCNA), Microsoft
Certified Technology Specialist (MCTS) and Microsoft
Certified IT Professional (MCITP) on Server 2008 platform.
He is also nominated Book Reviewer of The National
Curriculum of Textbook Board. His research interest includes
Operating Systems, Networking, and Microwave Technology.
Islam, Md. Asraful
He is the final year student of Bangladesh
University in B. Sc of Computer Science and
Engineering Department. In future he wants to
work with the field of modern technology and
communication.
Pervez, Md. Sarwar
Received his M. Sc. in Applied physics and
Electronic Engineering (APEE) degree from
University of Rajshahi, Bangladesh, 2012 and
has also completed his B. Sc (Honors) in
Applied Physic and Electronic Engineering
(APEE) form the same University, 2011. His
research interests include condensed mater Physics (Dilute
Magnetic Semiconductor, DMS), advanced digital signal
processing techniques and advanced communication
Technology.

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