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Low Complexity Signal Detection in MIMO Systems | IEEE Conference Publication | IEEE Xplore

Low Complexity Signal Detection in MIMO Systems


Abstract:

The Maximum Likelihood Detector (MLD) offers an optimal bit-error-ratio for an un-coded multiple-input-multiple-output (MIMO) communication system. The computational comp...Show More

Abstract:

The Maximum Likelihood Detector (MLD) offers an optimal bit-error-ratio for an un-coded multiple-input-multiple-output (MIMO) communication system. The computational complexity, however, of MLD increases significantly for detection of higher order modulated signal streams with multiple transmit antennas. To reduce this complexity while simultaneously also achieving near optimal performance, we propose a novel technique that modifies the sub-optimal Zero Forcing Detector (ZFD) by using the minimum eigen vector of the matrix HHH, where H is the channel matrix and HH is its Hermitian. The performance in terms of BER and computational complexity of the proposed technique is compared to that of the MLD. Simulations show that the BER performance of the proposed technique is near optimal whereas the computational complexity is significantly reduced.
Date of Conference: 27-30 August 2018
Date Added to IEEE Xplore: 14 April 2019
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Conference Location: Chicago, IL, USA

References

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