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Minimum bit error rate beamforming receiver for space-division multiple-access based quadrature amplitude modulation systems

Minimum bit error rate beamforming receiver for space-division multiple-access based quadrature amplitude modulation systems
Minimum bit error rate beamforming receiver for space-division multiple-access based quadrature amplitude modulation systems
We considers the beamforming assisted multipleantenna receiver for space-division multiple-access based multiuser systems that employ high-throughput quadrature amplitude modulation (QAM) signalling. The bit error ratio (BER) expression as the function of the beamformer’s weight vector is derived, and the minimum BER (MBER) beamforming receiver is then obtained as the solution of the resulting optimisation problem that minimises the MBER criterion. A simplified conjugate gradient algorithm, which has previously demonstrated its effectiveness in solving the minimum symbol error ratio (MSER) optimisation problem, is employed to solve this MBER optimisation. For highorder QAM, although the bit decision is an inherently more complicated procedure than making a symbol decision, it turns out that the computational complexity of computing the MBER solution is similar to that of computing the MSER solution. As expected, our simulation results show that both the MBER and MSER systems achieve the same BER performance, and they significantly outperform the standard minimum mean squares error based solution.
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Zhang, Jiankang
6add829f-d955-40ca-8214-27a039defc8a
Mu, Xiaomin
3d578909-36ba-4b16-b703-2ef63532116c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Zhang, Jiankang
6add829f-d955-40ca-8214-27a039defc8a
Mu, Xiaomin
3d578909-36ba-4b16-b703-2ef63532116c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Chen, Sheng, Zhang, Jiankang, Mu, Xiaomin and Hanzo, Lajos (2012) Minimum bit error rate beamforming receiver for space-division multiple-access based quadrature amplitude modulation systems. 2012 IEEE Wireless Communications and Networking Conference, France. 01 - 04 Apr 2012. 5 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

We considers the beamforming assisted multipleantenna receiver for space-division multiple-access based multiuser systems that employ high-throughput quadrature amplitude modulation (QAM) signalling. The bit error ratio (BER) expression as the function of the beamformer’s weight vector is derived, and the minimum BER (MBER) beamforming receiver is then obtained as the solution of the resulting optimisation problem that minimises the MBER criterion. A simplified conjugate gradient algorithm, which has previously demonstrated its effectiveness in solving the minimum symbol error ratio (MSER) optimisation problem, is employed to solve this MBER optimisation. For highorder QAM, although the bit decision is an inherently more complicated procedure than making a symbol decision, it turns out that the computational complexity of computing the MBER solution is similar to that of computing the MSER solution. As expected, our simulation results show that both the MBER and MSER systems achieve the same BER performance, and they significantly outperform the standard minimum mean squares error based solution.

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e-pub ahead of print date: 13 March 2012
Venue - Dates: 2012 IEEE Wireless Communications and Networking Conference, France, 2012-04-01 - 2012-04-04
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 335732
URI: https://eprints.soton.ac.uk/id/eprint/335732
PURE UUID: 5233ef4d-35d1-4bec-98f3-3b7a1b82a80c
ORCID for Jiankang Zhang: ORCID iD orcid.org/0000-0001-5316-1711
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 13 Mar 2012 14:13
Last modified: 08 Oct 2019 00:56

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Contributors

Author: Sheng Chen
Author: Jiankang Zhang ORCID iD
Author: Xiaomin Mu
Author: Lajos Hanzo ORCID iD

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