Achievable rates for transmission of discrete constellations over the Gaussian MAC channe

2011/02/24 by Rizwan Ghaffar, Ghaffar, Rizwan, Dimitris Toumpakaris +3
Computer Science · Engineering · Mathematics · #Radar Systems and Signal Processing #Sparse and Compressive Sensing Techniques #Wireless Communication Security Techniques #cs.IT #math.IT

paper · pdf · doi:10.48550/arxiv.1102.4967

Submitted to ISIT 2011

arxiv created 2011/02/24 · arxiv updated 2011/02/25

Abstract

In this paper we consider the achievable rate region of the Gaussian Multiple Access Channel (MAC) when suboptimal transmission schemes are employed. Focusing on the two-user MAC and assuming uncoded Pulse Amplitude Modulation (PAM), we derive a rate region that is a pentagon, and propose a strategy with which it can be achieved. We also compare the region with outer bounds and with orthogonal transmission.

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