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

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

2011-02-24

arxiv.org/abs/1102.4967v1

Computer Science

Information Theory

Submitted to ISIT 2011

Scientific paper

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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