Constructive interference as an information carrier by dual-layered MIMO transmission
Constructive interference as an information carrier by dual-layered MIMO transmission
We propose a bandwidth efficient (BE) transmission scheme for multiple-input-multiple-output (MIMO) point-to-point (P2P) and downlink (DL) channels. The BE of spatial multiplexing (SMX) is improved by implicitly encoding information in the spatial domain based on the existence of constructive interference in the received symbols, that creates a differentiation in the symbol power. Explicitly, the combination of symbols received at a higher power level carries implicit information in the spatial domain in the same manner as the combination of non-zero elements in the receive symbol vector carries information for receive-antenna based spatial modulation (RSM). The non-zero power throughout the received symbol vector for the proposed technique, allows a full SMX underlying transmission, with the BE enhancement brought by the spatial symbol. Our simulation results demonstrate both significant BE gains and error probability reduction for our approach over the conventional SMX and RSM schemes.
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Masouros, Christos
f7d74183-a31b-412e-8a75-1a942aa156d8
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Masouros, Christos
f7d74183-a31b-412e-8a75-1a942aa156d8
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Masouros, Christos and Hanzo, Lajos
(2016)
Constructive interference as an information carrier by dual-layered MIMO transmission.
IEEE Transactions on Vehicular Technology, .
(doi:10.1109/TVT.2016.2528506).
Abstract
We propose a bandwidth efficient (BE) transmission scheme for multiple-input-multiple-output (MIMO) point-to-point (P2P) and downlink (DL) channels. The BE of spatial multiplexing (SMX) is improved by implicitly encoding information in the spatial domain based on the existence of constructive interference in the received symbols, that creates a differentiation in the symbol power. Explicitly, the combination of symbols received at a higher power level carries implicit information in the spatial domain in the same manner as the combination of non-zero elements in the receive symbol vector carries information for receive-antenna based spatial modulation (RSM). The non-zero power throughout the received symbol vector for the proposed technique, allows a full SMX underlying transmission, with the BE enhancement brought by the spatial symbol. Our simulation results demonstrate both significant BE gains and error probability reduction for our approach over the conventional SMX and RSM schemes.
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More information
Accepted/In Press date: 8 February 2016
e-pub ahead of print date: 27 April 2016
Organisations:
Comms, Signal Processing & Control
Identifiers
Local EPrints ID: 396319
URI: http://eprints.soton.ac.uk/id/eprint/396319
ISSN: 0018-9545
PURE UUID: 51d08b0b-da6a-4b3a-9e02-a4109900ef01
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Date deposited: 08 Jun 2016 08:55
Last modified: 18 Mar 2024 02:35
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Contributors
Author:
Christos Masouros
Author:
Lajos Hanzo
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