Title :
Design of an image communication system based on adaptive equalizer
Author :
Kong, Hyung-Yun ; Choi, Won-Ho ; Kim, Young-Hwan ; Park, Gue-Tae
Author_Institution :
Sch. of Electr., Electron. & Autom., Ulsan Univ., South Korea
Abstract :
In this paper, we propose an efficient multimedia (audio, image, etc.) communication system for reliable transmission of vulnerable compressed images over wireless radio channels. We study the removal of noise and ISI components by using the equalizer system. The proposed equalizers are designed based on the non-linear MMSE (minimum mean square error) algorithm using the Taylor series expansion. In simulation, we consider that equalizer-a is a nonlinear MMSE equalizer including an ISI canceller and equalizer-b is the same equalizer without the ISI canceller. Simulation results show that the performance of equalizer-a is improved under general Gaussian and dependent Gaussian noise environments in the positive SNR value; and proposed equalizer-b, in the dependent Gaussian noise, has a good performance in the negative SNR value as compared to other systems
Keywords :
Gaussian noise; adaptive equalisers; interference suppression; intersymbol interference; land mobile radio; least mean squares methods; multimedia communication; radiofrequency interference; telecommunication network reliability; visual communication; Gaussian noise; ISI canceller; Taylor series expansion; adaptive equalizer; dependent Gaussian noise; equalizer-a; equalizer-b; general Gaussian noise; image communication system; minimum mean square error; multimedia communication system; noise; nonlinear MMSE algorithm; nonlinear MMSE equalizer; performance; reliable transmission; vulnerable compressed images; wireless radio channels; Adaptive equalizers; Algorithm design and analysis; Gaussian noise; Image coding; Image communication; Intersymbol interference; Mean square error methods; Multimedia systems; Noise cancellation; Signal to noise ratio;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818458