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Achieving AWGN Multiple Access Channel Capacity with Spatial Graph Coupling

delete2012-05-01
delete15
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Dmitri Truhachev *
DOI：10.1109/LCOMM.2012.031212.120228delete
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Abstract

Abstract

En 中文
Communication over a multiple access channel is considered. Each user modulates his signal as a superposition of redundant data streams where interconnection of data bits can be represented by means of a sparse graph. The receiver observes a signal resulting from the coupling of the sparse modulation graphs. Iterative interference cancellation decoding is analyzed. It is proved that spatial graph coupling allows to achieve the AWGN channel capacity with equal power and rate transmissions.
Keywords:
Spatial coupling
multiple access channel
capacity
interference cancellation

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

No organization information available