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A Real-Complex Hybrid Modulation Approach for Scaling Up Multiuser MIMO Detection

De Luna Ducoing, Juan Carlos, Ma, Yi, Yi, Na and Tafazolli, Rahim (2018) A Real-Complex Hybrid Modulation Approach for Scaling Up Multiuser MIMO Detection IEEE Transactions on Communications, 66 (9). pp. 3916-3929.

A Real-Complex Hybrid Modulation Approach for Scaling Up Multiuser MIMO Detection.pdf - Accepted version Manuscript

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In this paper, a novel approach, namely realcomplex hybrid modulation (RCHM), is proposed to scale up multiuser multiple-input multiple-output (MU-MIMO) detection with particular concern on the use of equal or approximately equal service antennas and user terminals. By RCHM, we mean that user terminals transmit their data sequences with a mix of real and complex modulation symbols interleaved in the spatial and temporal domain. It is shown, through the system outage probability, RCHM can combine the merits of real and complex modulations to achieve the best spatial diversity-multiplexing trade-off that minimizes the required transmit-power given a sum-rate. The signal pattern of RCHM is optimized with respect to the real-to-complex symbol ratio as well as power allocation. It is also shown that RCHM equips the successive interference canceling MU-MIMO receiver with near-optimal performances and fast convergence in Rayleigh fading channels. This result is validated through our mathematical analysis of the average biterror- rate as well as extensive computer simulations considering the case with single or multiple base-stations.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
De Luna Ducoing, Juan
Date : 4 May 2018
DOI : 10.1109/TCOMM.2018.2833101
Copyright Disclaimer : © 2018 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.
Uncontrolled Keywords : Multiuser multiple-input multiple-output (MUMIMO); Detection; Real-complex hybrid modulation (RCHM); Successive interference cancellation (SIC); Widely-linear receiver
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Additional Information : This work was supported in part by European Commission under the framework of the FP7 ICT-619555 RESCUE project, and in part by 5G Innovation Centre (5GIC) HEFEC grant. This work has been filed in an international patent with the application No. PCT/GB2017/052012.
Depositing User : Clive Harris
Date Deposited : 03 May 2018 14:35
Last Modified : 08 Oct 2018 07:03

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