A New Low-Complexity Demapper for High-Performance Iterative MIMO: Information-Theoretic and BER Analyses

For multiple-input multiple-output (MIMO) systems, space-time bit-interleaved coded modulation (STBICM) using iterative detection has been recognized as a method to achieve near-capacity performance. However, the a posteriori probability (APP) detector required for this near-optimal performance exhibits prohibitive implementation complexity at high rates (≥16 coded bps/Hz) due to its exponential complexity in rate. With a view to enabling practical implementations of high spectral-efficiency wireless communications, this paper introduces a singlestream detection approach using spatial-filtering (or nulling) and soft-cancellation. Relative to the conventional APP detector, the proposed method is shown to have a superior performance-complexity trade. This paper also demonstrates the robustness of the proposed single-stream detection approach in overloaded conditions where there are fewer receive antenna elements devoted to signal separation than there are transmitted streams.

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A Low Complexity Iterative Receiver for High Spectral-Efficiency Battlefield MIMO Communications

Koshy

Liberti

MILCOM 2005 - 2005 IEEE Military Communications Conference

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Experimental Results Using a Mimo Test Bed for Wideband, High Spectral Efficiency Tactical Communications

Liberti¹,

Koshy²,

Hoerning³

et al.

MILCOM 2005 - 2005 IEEE Military Communications Conference

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A New Low-Complexity Demapper for High-Performance Iterative MIMO: Information-Theoretic and BER Analyses

Cited by 2 publications

References 4 publications

A Low Complexity Iterative Receiver for High Spectral-Efficiency Battlefield MIMO Communications

A Low Complexity Iterative Receiver for High Spectral-Efficiency Battlefield MIMO Communications

Experimental Results Using a Mimo Test Bed for Wideband, High Spectral Efficiency Tactical Communications

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