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Unequal Power Allocation for JPEG Transmission Over
MIMO Systems
With the introduction of multiple transmit and receive antennas in next generation
wireless systems, real-time image and video communication are expected to become
quite common, since very high data rates will become available along with improved data
reliability. New joint transmission and coding schemes that explore advantages of
multiple antenna systems matched with source statistics are expected to be
developed. Based on this idea, we present an unequal power allocation scheme for
transmission of JPEG compressed images over multiple-input multiple-output systems
employing spatial multiplexing. The JPEG-compressed image is divided into different
quality layers, and different layers are transmitted simultaneously from different transmit
antennas using unequal transmit power, with a constraint on the total transmit power
during any symbol period. Results show that our unequal power allocation scheme
provides significant image quality improvement as compared to different equal power

2. allocations schemes, with the peak-signal-to-noise-ratio gain as high as 14 dB at low
signal-to-noise-ratios.
Existing System
With the introduction of multiple transmit and receive antennas in next generation
wireless systems, real-time image and video communication are expected to become
quite common, since very high data rates will become available along with improved data
reliability.
Proposed System
New joint transmission and coding schemes that explore advantages of multiple antenna
systems matched with source statistics are expected to be developed. Based on this idea,
we present an unequal power allocation scheme for transmission of JPEG compressed
images over multiple-input multiple-output systems employing spatial multiplexing. The
JPEG-compressed image is divided into different quality layers, and different layers are
transmitted simultaneously from different transmit antennas using unequal transmit
power, with a constraint on the total transmit power during any symbol period. Results
show that our unequal power allocation scheme provides significant image quality
improvement as compared to different equal power allocations schemes, with the peak-signal-
to-noise-ratio gain as high as 14 dB at low signal-to-noise-ratios.
System Specification
Hardware Requirements:
• System : Pentium IV 2.4 GHz.
• Hard Disk : 40 GB.

3. • Floppy Drive : 1.44 Mb.
• Monitor : 14’ Colour Monitor.
• Mouse : Optical Mouse.
• Ram : 512 Mb.
Software Requirements:
• Operating system : Windows 7.
• Coding Language : ASP.Net with C#
• Data Base : SQL Server 2008.