NDLI: Image Transmission using Variable M-QAM with Optimized Bit Power Allocation

Content Provider	IEEE Xplore Digital Library
Author	Bin Sediq, A. El-Tarhuni, M. Hassan, M.
Copyright Year	2006
Description	Author affiliation: American Univ. of Sharjah, Sharjah (Bin Sediq, A.; El-Tarhuni, M.; Hassan, M.)
Abstract	In this paper, optimization of minimum mean square error for image transmission using a variable M-QAM system is proposed for improving both power and bandwidth efficiencies. Optimization is based on bit power allocation according to the importance of bits to the overall image quality. An iterative off-line algorithm is presented to find the optimum power allocated and modulation level to different bits. Our results show that a 16-QAM system using the proposed algorithm with optimized bit power allocation provides an improvement in power efficiency as measured by the average Eb/No of about 2 dB over that using a conventional 16-QAM. However, the improvement increases significantly with the variable M-QAM system to about 6 dB while improving the bandwidth efficiency by about 17% over the conventional 16- QAM system.
Starting Page	25
Ending Page	29
File Size	1804124
Page Count	5
File Format	PDF
ISBN	9781424403974
DOI	10.1109/ISWCS.2006.4362252
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image communication Amplitude modulation Binary phase shift keying Adaptive Modulation Land mobile radio Image quality Power measurement Power Allocation MMSE Bandwidth Mean square error methods Image Transmission Streaming media Iterative algorithms
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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