Study of FCLSD Algorithm Performance Based on LTE System

Ke Wen Liu; Quan Liu

doi:10.4028/www.scientific.net/AMM.195-196.96

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 195-196Study of FCLSD Algorithm Performance Based on LTE...

Study of FCLSD Algorithm Performance Based on LTE System

Abstract:

Soft-output complex list sphere decoding algorithm is a low-complexity MIMO detection algorithm and its BER performance approximates that of Maximum-Likelihood. However, it has a problem of not fixed complexity, and which make it very difficult to implement. To resolve this and try best to retain the advantages of the algorithm, a modified algorithmfixed complex list sphere decoding algorithm was proposed. Based on LTE TDD system, this paper studies the performance of the FCLSD algorithm. The simulation results show that: the BER performance of the FCLSD algorithm is close to that of the CLSD algorithm. However, when the number of antennas and modulation order increasing, the FCLSD algorithm is non-constrained of spherical radius and has fixed complexity. In addition, hardware implementation of the FCLSD algorithm could be carried out by parallel processing, thereby greatly reducing the algorithm complexity. So it is a high-performance algorithm of great potential.

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Periodical:

Applied Mechanics and Materials (Volumes 195-196)

Pages:

96-103

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.195-196.96

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Online since:

August 2012

Authors:

Ke Wen Liu, Quan Liu

Keywords:

Complexity, List Sphere Decoding, Long Term Evolution (LTE), Performance, Soft-Output

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