Title :
An OFDM based system for transmission of JPEG2000 images using Unequal Power Allocation
Author :
Shayegannia, Moein ; Mohammadi, Atousa Haj Shir ; Muhaidat, Sami ; Torki, Mahin
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
In this paper, a transmission of JPEG2000 images using an Unequal Power Allocation (UPA) scheme and Orthogonal Frequency Division Multiplexing (OFDM) technique over a block fading - frequency selective channel is presented. Using instantaneous and average channel state information, power is assigned to each bit in the JPEG2000 bitstream based on its contribution to the decoded image quality. Moreover, the actual total power consumed for transmission is measured and compared with the total power initially assigned. Simulation results show an improvement of up to 10.5 dB in the decoded image quality when the UPA scheme is used. In addition, the simulation results demonstrate the effectiveness of the proposed UPA algorithm in frequency selective block fading channels.
Keywords :
OFDM modulation; decoding; fading channels; image coding; media streaming; JPEG2000 bitstream; JPEG2000 images transmission; OFDM based system; UPA scheme; average channel state information; decoded image quality; frequency selective block fading channels; instantaneous channel state information; orthogonal frequency division multiplexing technique; unequal power allocation scheme; Bit error rate; Encoding; Fading; OFDM; PSNR; Transform coding; JPEG2000; OFDM; Unequal Power Allocation; Wireless Image Transmission;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6214131
