Title :
Trellis coding for nonlinear cochannel interference cancellation of non-spread signals
Author :
Murata, Hidekazu ; Yoshida, Susumu
Author_Institution :
Dept. of Commun. & Comput. Eng., Kyoto Univ., Japan
Abstract :
Cochannel interference is a major impairment that limits the capacity of cellular radio systems. A coding scheme for nonlinear cochannel interference cancellation is discussed. This canceller uses trellis-coded modulation with maximum-likelihood sequence estimation of both the desired signal and cochannel interference. This technique permits operation even when the signal-to-interference ratio is 0 dB. This performance advantage is due to the sophisticated trellis-coding designed for each user. A novel trellis coding is proposed, and its superior bit error rate performance is shown by computer simulations
Keywords :
cellular radio; cochannel interference; error statistics; interference suppression; maximum likelihood sequence estimation; trellis coded modulation; trellis codes; BER performance; TCM; bit error rate performance; cellular radio systems; computer simulations; maximum-likelihood sequence estimation; multiuser detection; nonlinear cochannel interference cancellation; nonspread signals; receiver; signal point overlapping; signal processing; signal-to-interference ratio; trellis coding; trellis-coded modulation; Additive white noise; Bit error rate; Computer simulation; Digital communication; Fading; Frequency; Ice; Interchannel interference; Interference cancellation; Maximum likelihood estimation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881413
