Optimal Spatial-Domain Design for Spatial Modulation Capacity Maximization

Liu, Chang, Ma, Meng, Yang, Yuli and Jiao, Bingli (2016) Optimal Spatial-Domain Design for Spatial Modulation Capacity Maximization. IEEE Communications Letters, 20 (6). pp. 1092-1095. ISSN 1089-7798

Full content URL: https://ieeexplore.ieee.org/document/7447695

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As a promising technique in multi-antenna systems, spatial modulation (SM) introduces the spatial domain into its constellation by mapping more information with antenna selection, in addition to the signal domain. To further improve the capacity performance of SM, an iterative algorithm for the spatial-domain design is proposed in this letter, where the optimal probability of activating each transmit antenna is obtained to maximize the instantaneous capacity of SM. By comparing the metrics of outage and ergodic capacity with the conventional SM, illustrative numerical results not only demonstrate the throughput achieved in the proposed scheme, but also substantiate the domination of the proposed scheme over the conventional SM.

Keywords:Spatial modulation, Spatial domain, Capacity maximization
Subjects:H Engineering > H610 Electronic Engineering
H Engineering > H640 Communications Engineering
Divisions:College of Science > School of Engineering
ID Code:39404
Deposited On:10 Jan 2020 15:04

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