Information Capacity of the Space Division Multiple Access Mobile Communication System

Authors:
Predrag B. Rapajic
Affiliations:
Telecommunications Engineering Group, Research School of Information Sciences and Engineering, The Australian National University, Canberra ACT 0200, Australia
Venue:
Wireless Personal Communications: An International Journal
Year:
1999

Citing 2
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Abstract

An expression for the Shannon capacity lower bound of the space division multiple access (SDMA) mobile communication channel with interference is shown. The bound is tightly approaching the Shannon capacity of the orthogonal SDMA system over Gaussian channel with no interference. The information capacity of the SDMA system with adaptive MMSE receivers is presented as well. The SDMA system with MMSE receivers achieves at least 50% of the orthogonal SDMA system capacity for the input signal to noise ratio of practical interest in cellular mobile communications (10–30dB).