Adaptive weight factor estimation from user

1. ADAPTIVE WEIGHT FACTOR
ESTIMATION FROM USER PREFERENCES
FOR VERTICAL HANDOFF DECISION ALGORITHMS
Solutions
Ambitlick

2. SCOPE OF THE PROJECT:
To Estimate the weight factors for quality of service
Ambitlick Solutions
parameter in VERTICAL HANDOVER MECHANISMS
using Adjacent Pair Priorities (APP) technique.

3. ABSTRACT
 Estimating weight factors for QoS parameters plays
an important role in the effectiveness of vertical
handoff decision algorithms.
Ambitlick Solutions
 A novel weight estimation technique, which can
adaptively control the spanning of the weights in
response to user preference.
 Our results show the supremacy of the technique
against the state-of-the-art in achieving wider
spanning of the expected values of all QoS parameters
under consideration.

4. PROBLEM IDENTIFICATION:
AHP based weight estimation is so far the most
popular technique as it allows user to set relative
Ambitlick Solutions
importance between pairs of parameters using a
fundamental linear scale

5. PROPOSE SYSTEM
 A novel weight estimation technique, which can avoid all the above
mentioned limitations by allowing users to set relative priority for only
adjacent pair of QoS parameters in descending order of priority and
Ambitlick Solutions
quantifying the relative priority levels using an exponential mapping
with a user-defined exponent.
 Consequently, the proposed Adjacent Pair Priorities (APP) technique
can adaptively control the width of the spanning of estimated weights
to provide the ultimate flexibility for users to control the weight
distribution.
 Markov Decision Process (MDP)

6. SYSTEM REQUIREMENT & SPECIFICATION:
Hardware Requirements: Software Requirements:
Ambitlick Solutions
Processor Type : Pentium -IV Operating System : Linux – red hat 9.0
Speed : 2.4 GHZ
Ram : 128 MB Programming Package : C++ , TCL
RAM
Hard disk : 20 GB HD Tool Used : Vmware Work station
Version : NS2 2.27, 2.29 , 2.34

7. Select Best Network form
exsisting Application and
traffic
BLOCK DIAGRAM:
Ambitlick Solutions
Qos Parameter
Avg. Jitter (ms) Average Delay Average.PDR Avg. Throughput
Adjacent Pair Priorities Handover
(APP) technique
Technique
GPRS WLAN UTMS

8. MODULES :
1. Design Of heterogeneous network.
2. Vertical Handoff Decision Algorithms
Ambitlick Solutions
3. Implementation Of Adjacent Pair Priorities
(APP) Technique.
4. Paramètres estimation
5. Comparaison Of QOS Paramètres

9. REFERENCES
[1] Y. Chen, J. Ai, and Z. Tan, “An Access Network Selection Algorithm Based on
Hierarchy Analysis and Fuzzy Evaluation”, in Proc.WCSP, Nanjing, November
2009.
Ambitlick Solutions
[2] S. Lee, , K. Sriram, K. Kim, Y. H. Kim, and N. Golmie, “Vertical Handoff Decision
Algorithms for Providing Optimized Performance in Heterogeneous Wireless
Networks ”, IEEE Transaction of Vehicular Technology, vol. 58, no. 2, pp. 865-881,
February 2009.
[3] R.Tawil, O. Salazar and G. Pujolle, “Vertical Handoff Decision Scheme Using
MADM for Wireless Networks”, Proc. IEEE WCNC, pp. 2789- 2792, March 2008.
[4] S. Yan, C. Shanzhi, L. Yuhong, Y. Lei, and D. Decail, “An Application- Oriented
Cooperative Vertical Handoff Decision Method for Multi interface Mobile
Terminals”, in Proc. ITST, June 2007
[5] B. Chang, and J. Chen, “Cross-Layer-Based Adaptive Vertical Handoff With
Predictive RSS in Heterogeneous Wireless Networks ”, IEEE Transaction of
Vehicular Technology, vol. 57, no. 6, pp. 3679-3692, November 2008.