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Single-RF and twin-RF spatial modulation for an arbitrary number of transmit antennas

Single-RF and twin-RF spatial modulation for an arbitrary number of transmit antennas
Single-RF and twin-RF spatial modulation for an arbitrary number of transmit antennas
Spatial Modulation (SM) constitutes an appealing low-complexity single Radio Frequency (RF)-aided Multiple-Input Multiple-Output (MIMO) technique. Conventional SM schemes tend to rely on transmit antenna (TA) configurations, where the number of TAs is a power of two. In order to circumvent this limitation, a novel single RF-aided SM conceived for an Arbitrary Number of TAs (SM-ATA) is proposed, which is then further developed to a twin-RF Enhanced SM-ATA (ESM-ATA) schedule for exploiting the diversity advantage of Space-Time Block Coding (STBC). Furthermore, low-complexity near-optimal detectors are designed for both the SM-ATA and ESM-ATA schemes. Our simulation results show that the proposed SM-ATA schemes offer almost the same performance as conventional SM systems, despite using a reduced number of transmit antennas at the same transmission rate. The proposed twin-RF ESM-ATA schemes provide a beneficial performance gain over the existing twin-RF multiplexing based and space-time coding based SM schemes. Finally, an upper bound is derived for the Average Bit Error Probability (ABEP), which is confirmed by our simulation results.
0018-9545
Xiao, Lixia
3edd478e-9423-4d9b-86f4-d8d29f7c49a9
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
You, Longfei
78f043e0-85c1-44b9-9e21-0820163c4a95
Yang, Ping
3dba2634-eb2b-4df8-a995-1061b841afe1
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Xiao, Lixia
3edd478e-9423-4d9b-86f4-d8d29f7c49a9
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
You, Longfei
78f043e0-85c1-44b9-9e21-0820163c4a95
Yang, Ping
3dba2634-eb2b-4df8-a995-1061b841afe1
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Xiao, Lixia, Xiao, Yue, You, Longfei, Yang, Ping, Li, Shaoqian and Hanzo, Lajos (2018) Single-RF and twin-RF spatial modulation for an arbitrary number of transmit antennas. IEEE Transactions on Vehicular Technology. (doi:10.1109/TVT.2018.2819025).

Record type: Article

Abstract

Spatial Modulation (SM) constitutes an appealing low-complexity single Radio Frequency (RF)-aided Multiple-Input Multiple-Output (MIMO) technique. Conventional SM schemes tend to rely on transmit antenna (TA) configurations, where the number of TAs is a power of two. In order to circumvent this limitation, a novel single RF-aided SM conceived for an Arbitrary Number of TAs (SM-ATA) is proposed, which is then further developed to a twin-RF Enhanced SM-ATA (ESM-ATA) schedule for exploiting the diversity advantage of Space-Time Block Coding (STBC). Furthermore, low-complexity near-optimal detectors are designed for both the SM-ATA and ESM-ATA schemes. Our simulation results show that the proposed SM-ATA schemes offer almost the same performance as conventional SM systems, despite using a reduced number of transmit antennas at the same transmission rate. The proposed twin-RF ESM-ATA schemes provide a beneficial performance gain over the existing twin-RF multiplexing based and space-time coding based SM schemes. Finally, an upper bound is derived for the Average Bit Error Probability (ABEP), which is confirmed by our simulation results.

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Accepted/In Press date: 20 March 2018
e-pub ahead of print date: 22 March 2018

Identifiers

Local EPrints ID: 418929
URI: http://eprints.soton.ac.uk/id/eprint/418929
ISSN: 0018-9545
PURE UUID: 0ff99b7b-4eb9-4f2c-b8d8-1f5399cbb8c8
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 26 Mar 2018 16:30
Last modified: 07 Oct 2020 01:33

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