Multi-set space-time shift-keying with reduced detection complexity


Hemadeh, Ibrahim, El-Hajjar, Mohammed, Won, Seunghwan and Hanzo, Lajos (2016) Multi-set space-time shift-keying with reduced detection complexity IEEE Access, 4, pp. 4234-4246. (doi:10.1109/ACCESS.2016.2582462).

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Description/Abstract

In this treatise, we propose a novel Multi-Set Space-Time Shift Keying (MS-STSK) technique, where the source bits are conveyed over two components, namely by activating one out of MQ dispersion matrices of Space-Time Shift Keying (STSK) and M Antenna Combination (AC) of the Nt available antennas, in a similar fashion to Spatial Modulation (SM) but activating multiple antennas rather than a single antenna. This system requires a smaller number of RF chains than Antenna Elements (AEs) to achieve an improved throughput. We opt for STSK as the main building block of our proposed MS-STSK as a benefit of its design flexibility, where STSK is capable of providing the system with both diversity and multiplexing gains. The proposed MS-STSK system achieves both higher data rates and a lower Bit Error Rate (BER) than the conventional STSK scheme, which is attained at the cost of increased number of antenna elements and a high-speed antenna switch. Furthermore, as the symbol rate of the MS-STSK system increases, its performance compared to the STSK scheme is significantly improved, because of the enhanced diversity introduced by the additional antenna elements. Furthermore, we propose a reduced complexity detector for QAM/PSK constellations, which - despite its reduced complexity - is capable of achieving the same performance as the optimal Maximum Likelihood (ML) detector.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1109/ACCESS.2016.2582462
Related URLs:
Organisations: Southampton Wireless Group
ePrint ID: 396355
Date :
Date Event
30 May 2016Submitted
11 June 2016Accepted/In Press
20 June 2016Published
Date Deposited: 08 Jun 2016 08:12
Last Modified: 17 Apr 2017 02:51
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/396355

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