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Power allocation-aided spatial modulation for limited-feedback MIMO systems

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, pp. 1-16.

Record type: Article


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.

PDF Power Allocation-Aided Spatial Modulation for%0ALimited-Feedback MIMO Systems%0A.pdf - Accepted Manuscript
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Published date: 15 July 2014
Organisations: Southampton Wireless Group


Local EPrints ID: 367247
ISSN: 0018-9545
PURE UUID: 17cc976a-aa13-4d14-97d8-589cd9e36404
ORCID for Mohammed El-Hajjar: ORCID iD
ORCID for Lajos Hanzo: ORCID iD

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Date deposited: 19 Aug 2014 10:47
Last modified: 09 Oct 2017 07:10

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Author: Ping Yang
Author: Yue Xiao
Author: Bo Zhang
Author: Shaoqian Li
Author: Mohammed El-Hajjar ORCID iD
Author: Lajos Hanzo ORCID iD

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