Soft output detection of cochannel GMSK signals

Authors:
Jie Wu;Gary J. Saulnier
Affiliations:
ECSE Department, Rensselaer Polytechnic Institute, Troy, NY;ECSE Department, Rensselaer Polytechnic Institute, Troy, NY
Venue:
MILCOM'03 Proceedings of the 2003 IEEE conference on Military communications - Volume I
Year:
2003

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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.