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Effects of Channel Estimation on Spatial Modulation

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
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Hanzo, Lajos
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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)

Record type: Article

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
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 09 Oct 2012 19:41
Last modified: 15 Mar 2024 02:38

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Contributors

Author: Shinya Sugiura
Author: Lajos Hanzo ORCID iD

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