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Virtual Full-Duplex Distributed Spatial Modulation with SER-Optimal and Suboptimal Detection
Author(s)
Date Issued
2018-04-18
Date Available
2019-10-08T10:58:06Z
Abstract
Spatial modulation, a multiple-input multipleoutput (MIMO) technology which uses the antenna index as an additional means of conveying information, is an emerging technology for modern wireless communications. In this paper, a new distributed version of spatial modulation is proposed which achieves virtual full-duplex communication (VFD-DSM), allowing the source to transmit new data while the relay set forwards the source's data in every time slot. Two maximum a posteriori (MAP) detection methods at the destination are proposed for this VFD-DSM protocol: one, called local MAP, is based on processing the signals received over each pair of consecutive time slots, while the other, called global MAP, is based on symbol-error-rate optimal detection over an entire frame of data. Simulation results for the proposed VFD-DSM protocol indicate that for source data detection at high signal-to-noise ratio (SNR), VFD-DSM with local MAP detection can provide a similar error rate performance to that of successive relaying, while providing a significant throughput advantage since the relays can forward the source transmissions while also transmitting their own data. Furthermore, the use of global MAP detection is shown to yield a further 1.8 dB improvement in source data error rate while still maintaining this throughput advantage.
Sponsorship
Science Foundation Ireland
Type of Material
Conference Publication
Publisher
IEEE
Copyright (Published Version)
2018 IEEE
Web versions
Language
English
Status of Item
Peer reviewed
Part of
2018 IEEE Wireless Communications and Networking Conference (WCNC)
Conference Details
2018 IEEE Wireless Communications and Networking Conference (WCNC), Barcelona, Spain, 15-18 April 2018
ISBN
9781538617342
ISSN
1525-3511
This item is made available under a Creative Commons License
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