Title :
A Selective Approach to Improve the Performance of UWB Image Transmission System over Indoor Fading Channels
Author :
Lv, Ting-Ting ; Zhang, Hao ; Wang, Xiao ; Cui, Xue-rong
Author_Institution :
Dept. of Electr. Eng., Ocean Univ. of China, Qingdao, China
Abstract :
A selective approach is proposed to improve the performance of Time-Hopping (TH) PPM UWB image transmission system over indoor fading channels. We divided the image information into key information and secondary information. In the proposed approach, key information is transmitted with good channel condition, secondary information otherwise. The threshold of channel condition can be derived from the CDF of indoor fading distribution. Simulation has been conducted to show the improvement. The PSNR (Peak Signal to Noise Ratio) of selective transmission system has a gain of almost 9 dB over non-selective system.
Keywords :
fading channels; image processing; indoor radio; ultra wideband communication; UWB image transmission system; image information; indoor fading channels; Fading; Image communication; Image restoration; Nakagami distribution; PSNR; Wavelet transforms; Wireless communication;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600718
