Power allocation-aided spatial modulation for limited-feedback MIMO systems
Power allocation-aided spatial modulation for limited-feedback MIMO systems
Adaptive power allocation (PA) algorithms based on optimization of the minimum distance dmin between signal points at the receiver side are investigated in spatial modulation (SM) systems. Firstly, a closed-form solution of the optimal maximum-dmin aided PA algorithm is derived in the case of two transmit antennas. Moreover, for a higher number of transmit antennas (TA), we propose a numerical approach, which appropriately splits the power between the specific TA-pair associated with dmin, so as to increase this distance. Furthermore, our PA-aided SM systems may be readily combined with adaptive modulation (AM) for further improving the system’s performance. Our numerical results show that the proposed algorithms provide beneficial system performance improvements compared to both the equal-gain PA based SM and the identical-throughput PA-aided spatial multiplexing systems.
1-16
Yang, Ping
85579e43-72eb-41f6-a8f8-d63cd683904b
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
15 July 2014
Yang, Ping
85579e43-72eb-41f6-a8f8-d63cd683904b
Xiao, Yue
10f13317-e86c-4b9e-bc7a-f7622c37ee01
Zhang, Bo
b4357fc4-109b-4499-a865-ad0b2386c076
Li, Shaoqian
7a1537c2-39b8-44d2-8d44-3f402e7c5b84
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, Ping, Xiao, Yue, Zhang, Bo, Li, Shaoqian, El-Hajjar, Mohammed and Hanzo, Lajos
(2014)
Power allocation-aided spatial modulation for limited-feedback MIMO systems.
IEEE Transactions on Vehicular Technology, .
(doi:10.1109/TVT.2014.2339297).
Abstract
Adaptive power allocation (PA) algorithms based on optimization of the minimum distance dmin between signal points at the receiver side are investigated in spatial modulation (SM) systems. Firstly, a closed-form solution of the optimal maximum-dmin aided PA algorithm is derived in the case of two transmit antennas. Moreover, for a higher number of transmit antennas (TA), we propose a numerical approach, which appropriately splits the power between the specific TA-pair associated with dmin, so as to increase this distance. Furthermore, our PA-aided SM systems may be readily combined with adaptive modulation (AM) for further improving the system’s performance. Our numerical results show that the proposed algorithms provide beneficial system performance improvements compared to both the equal-gain PA based SM and the identical-throughput PA-aided spatial multiplexing systems.
Text
Power Allocation-Aided Spatial Modulation for%0ALimited-Feedback MIMO Systems%0A.pdf
- Accepted Manuscript
More information
Published date: 15 July 2014
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 367247
URI: http://eprints.soton.ac.uk/id/eprint/367247
ISSN: 0018-9545
PURE UUID: 17cc976a-aa13-4d14-97d8-589cd9e36404
Catalogue record
Date deposited: 19 Aug 2014 10:47
Last modified: 18 Mar 2024 03:22
Export record
Altmetrics
Contributors
Author:
Ping Yang
Author:
Yue Xiao
Author:
Bo Zhang
Author:
Shaoqian Li
Author:
Mohammed El-Hajjar
Author:
Lajos Hanzo
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics