Low Complexity Soft Decision Technique for Gray Mapping Modulation

Abstract

High order Gray mapping modulation has been widely used in wireless communications, but the traditional soft decision technique via the log-sum approximation is of high computational complexity. In this paper, a low complexity soft decision technique is proposed for popular Gray mapping modulation schemes, including M-PAM, M-PSK and square M-QAM. Compared… (More)
DOI: 10.1007/s11277-008-9654-3

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