University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Low-Complexity and Robust Hybrid Beamforming Design for Multi-Antenna Communication Systems

Molu, Mehdi M., Xiao, Pei, Khalily, Mohsen, Cumanan, Kanapathippillai, Zhang, Lei and Tafazolli, Rahim (2017) Low-Complexity and Robust Hybrid Beamforming Design for Multi-Antenna Communication Systems IEEE Transactions on Wireless Communications.

[img]
Preview
Text
Low-Complexity and Robust Hybrid Beamforming Design for Multi-Antenna Communication Systems.pdf - Accepted version Manuscript

Download (1MB) | Preview

Abstract

This paper proposes a low-complexity hybrid beamforming design for multi-antenna communication systems. The hybrid beamformer comprises of a baseband digital beamformer and a constant modulus analog beamformer in radio frequency (RF) part of the system. As in Singular-Value-Decomposition (SVD) based beamforming, hybrid beamforming design aims to generate parallel data streams in multi-antenna systems, however, due to the constant modulus constraint of the analog beamformer, the problem cannot be solved, similarly. To address this problem, mathematical expressions of the parallel data streams are derived in this paper and desired and interfering signals are specified per stream. The analog beamformers are designed by maximizing the power of desired signal while minimizing the sum-power of interfering signals. Finally, digital beamformers are derived through defining the equivalent channel observed by the transmitter/receiver. Regardless of the number of the antennas or type of channel, the proposed approach can be applied to wide range of MIMO systems with hybrid structure wherein the number of the antennas is more than the number of the RF chains. In particular, the proposed algorithm is verified for sparse channels that emulate mm-wave transmission as well as rich scattering environments. In order to validate the optimality, the results are compared with those of the state-of-the-art and it is demonstrated that the performance of the proposed method outperforms state-of-the-art techniques, regardless of type of the channel and/or system configuration.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Molu, Mehdi M.UNSPECIFIEDUNSPECIFIED
Xiao, PeiP.Xiao@surrey.ac.ukUNSPECIFIED
Khalily, Mohsenm.khalily@surrey.ac.ukUNSPECIFIED
Cumanan, KanapathippillaiUNSPECIFIEDUNSPECIFIED
Zhang, Leilei.zhang@surrey.ac.ukUNSPECIFIED
Tafazolli, RahimR.Tafazolli@surrey.ac.ukUNSPECIFIED
Date : 2017
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Copyright Disclaimer : 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
Depositing User : Clive Harris
Date Deposited : 30 Nov 2017 11:31
Last Modified : 30 Nov 2017 11:31
URI: http://epubs.surrey.ac.uk/id/eprint/845073

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800