UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

A Scalable Performance-Complexity Tradeoff for Constellation Randomization in Spatial Modulation

Masouros, C; Hanzo, L; (2017) A Scalable Performance-Complexity Tradeoff for Constellation Randomization in Spatial Modulation. IEEE Transactions on Vehicular Technology , 66 (3) pp. 2834-2838. 10.1109/TVT.2016.2572760. Green open access

[img]
Preview
Text
Masouros_SM_TCR_LH4_Final.pdf - Accepted version

Download (441kB) | Preview

Abstract

It is widely recognized that traditional single radio frequency (RF)-chain-aided spatial modulation (SM) does not offer any transmit diversity gain. As a remedy, constellation randomization (CR), relying on transmit prescaling (TPS), has been shown to provide transmit diversity for single-RF-chain-aided SM. In this paper, we propose a low-complexity approach to SM with the aid of constellation randomization (SM-CR) that considerably improves the transmit diversity gain of SM at a reduced computational burden compared with conventional SM-CR. While conventional SM-CR performs a full search among a set of candidate TPS factors to achieve the maximum minimum Euclidean distance (MED) in the received SM constellation, here, we propose a thresholding approach, where, instead of the maximum MED, the TPS aims to satisfy a specific MED threshold. This technique offers a significant complexity reduction with respect to the full maximization of SM-CR, since the search for TPS is terminated once a TPS set is found that satisfies the MED threshold. Our analysis and results demonstrate that a scalable tradeoff can be achieved between transmit diversity and complexity by appropriately selecting the MED threshold, where a significant complexity reduction is attained, while achieving a beneficial transmit diversity gain for the single-RF SM.

Type: Article
Title: A Scalable Performance-Complexity Tradeoff for Constellation Randomization in Spatial Modulation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TVT.2016.2572760
Publisher version: https://doi.org/10.1109/TVT.2016.2572760
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Technology, Engineering, Electrical & Electronic, Telecommunications, Transportation Science & Technology, Engineering, Transportation, Constellation shaping, multiple-input single-output, spatial modulation (SM), transmit prescaling (TPS), Information, Diversity, Channels
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1550920
Downloads since deposit
71Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item