Effects of Channel Estimation on Spatial Modulation
Effects of Channel Estimation on Spatial Modulation
In this letter, we investigate the effects of training-based channel estimation on the achievable performance of the recent spatial modulation (SM) based multiple-input multiple-output (MIMO) scheme. This is motivated by the fact that the SM transmitter is constituted by a single radio-frequency (RF) branch and multiple antenna elements (AEs), hence simultaneous pilot transmissions from the AEs are impossible, unlike in the classic multiple-RF MIMO transmitters. Our simulation results demonstrate that the SM scheme’s BER curve exhibits a performance penalty, while relying on realistic imperfect channel-estimation. In order to combat these limitations, we propose two single-RF arrangements, namely a reduced-complexity joint channel estimation and data detection aided SM scheme as well as a non-coherently detected single-RF space-time shift keying scheme dispensing with channel estimation.
Sugiura, Shinya
4c8665dd-1ad8-4dc0-9298-bf04eded3579
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Sugiura, Shinya
4c8665dd-1ad8-4dc0-9298-bf04eded3579
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Sugiura, Shinya and Hanzo, Lajos
(2012)
Effects of Channel Estimation on Spatial Modulation.
IEEE Signal Processing Letters, 19 (12).
(In Press)
Abstract
In this letter, we investigate the effects of training-based channel estimation on the achievable performance of the recent spatial modulation (SM) based multiple-input multiple-output (MIMO) scheme. This is motivated by the fact that the SM transmitter is constituted by a single radio-frequency (RF) branch and multiple antenna elements (AEs), hence simultaneous pilot transmissions from the AEs are impossible, unlike in the classic multiple-RF MIMO transmitters. Our simulation results demonstrate that the SM scheme’s BER curve exhibits a performance penalty, while relying on realistic imperfect channel-estimation. In order to combat these limitations, we propose two single-RF arrangements, namely a reduced-complexity joint channel estimation and data detection aided SM scheme as well as a non-coherently detected single-RF space-time shift keying scheme dispensing with channel estimation.
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Accepted/In Press date: 2012
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 343793
URI: http://eprints.soton.ac.uk/id/eprint/343793
PURE UUID: 4a059c92-75b3-4855-b98a-d326375bcdf7
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Date deposited: 09 Oct 2012 19:41
Last modified: 15 Mar 2024 02:38
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Author:
Shinya Sugiura
Author:
Lajos Hanzo
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