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OFDM-aided differential space–time shift keying using iterative soft multiple-symbol differential sphere decoding

OFDM-aided differential space–time shift keying using iterative soft multiple-symbol differential sphere decoding
OFDM-aided differential space–time shift keying using iterative soft multiple-symbol differential sphere decoding
Soft-decision multiple-symbol differential sphere decoding (MSDSD) is proposed for orthogonal frequency-division multiplexing (OFDM)-aided differential space–time shift keying (DSTSK)-aided transmission over frequency-selective channels. Specifically, the DSTSK signaling blocks are generated by the channel-encoded source information and the space–time (ST) blocks are appropriately mapped to a number of OFDM subcarriers. After OFDM demodulation, the DSTSK signal is noncoherently detected by our soft-decision MSDSD detector. A novel soft-decisionMSDSD detector is designed, and the associated decision rule is derived for the DSTSK scheme. Our simulation results demonstrate that an SNR reduction of 2 dB is achieved by the proposed scheme using an MSDSD window size ofNw = 4 over the conventional soft-decision-aided differential detection benchmarker, while communicating over dispersive channels and dispensing with channel estimation (CE).
0018-9545
4102-4108
Kadir, Mohammad Ismat
35935725-6783-4030-b009-61da20173694
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hari, K.V.S.
2da50d38-1324-4f2a-ab9e-622b8236dee6
Giridhar, K.
725a0df3-150a-4d77-a215-8ad74206b546
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Kadir, Mohammad Ismat
35935725-6783-4030-b009-61da20173694
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hari, K.V.S.
2da50d38-1324-4f2a-ab9e-622b8236dee6
Giridhar, K.
725a0df3-150a-4d77-a215-8ad74206b546
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Kadir, Mohammad Ismat, Chen, Sheng, Hari, K.V.S., Giridhar, K. and Hanzo, Lajos (2014) OFDM-aided differential space–time shift keying using iterative soft multiple-symbol differential sphere decoding. IEEE Transactions on Vehicular Technology, 63 (8), 4102-4108. (doi:10.1109/TVT.2014.2306654).

Record type: Article

Abstract

Soft-decision multiple-symbol differential sphere decoding (MSDSD) is proposed for orthogonal frequency-division multiplexing (OFDM)-aided differential space–time shift keying (DSTSK)-aided transmission over frequency-selective channels. Specifically, the DSTSK signaling blocks are generated by the channel-encoded source information and the space–time (ST) blocks are appropriately mapped to a number of OFDM subcarriers. After OFDM demodulation, the DSTSK signal is noncoherently detected by our soft-decision MSDSD detector. A novel soft-decisionMSDSD detector is designed, and the associated decision rule is derived for the DSTSK scheme. Our simulation results demonstrate that an SNR reduction of 2 dB is achieved by the proposed scheme using an MSDSD window size ofNw = 4 over the conventional soft-decision-aided differential detection benchmarker, while communicating over dispersive channels and dispensing with channel estimation (CE).

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More information

Published date: 16 October 2014
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 362481
URI: https://eprints.soton.ac.uk/id/eprint/362481
ISSN: 0018-9545
PURE UUID: b9c61cae-0cf6-4e2c-bdd9-a1254d7922fd
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 26 Feb 2014 12:39
Last modified: 06 Jun 2018 13:15

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