Title :
Soft output detection of cochannel GMSK signals
Author :
Wu, Jie ; Saulnier, Gary J.
Author_Institution :
Dept. of Electr. Comput. & Sci. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
Joint detection of cochannel signals is an effective method to increase the capacity of wireless systems. In this paper we develop a soft output algorithm to jointly detect cochannel GMSK signals in a coded wireless system. The cochannel detection performance in a flat Rayleigh fading channel is investigated. Simulations show that the proposed soft output cochannel detector provides a 6 to 7 dB improvement over the joint hard output maximum-likelihood sequence estimation (JMLSE) cochannel detector in the example system.
Keywords :
Rayleigh channels; cochannel interference; minimum shift keying; signal detection; GSM; Gaussian minimum shift keying; Global System for Mobile Communication; cochannel GMSK signal; coded wireless system; flat Rayleigh fading channel; joint cochannel signal detection; joint hard output maximum-likelihood sequence estimation cochannel detector; personal communication system; soft output signal detection; spectral efficiency; Detectors; Frequency division multiaccess; Frequency shift keying; GSM; Interference suppression; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Signal detection; Time division multiple access;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290080
