Cross-Entropy-Based Antenna Selection for Spatial Modulation

被引：23
作者：
Sun, Zhaojie [1 ]
Xiao, Yue [1 ,2 ]
You, Longfei [1 ]
Yin, Lu [1 ]
Yang, Ping [1 ]
Li, Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China
[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210018, Jiangsu, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 03期
基金：
美国国家科学基金会;
关键词：
Spatial modulation; antenna selection; cross-entropy; COMPLEXITY REDUCTION;
D O I：
10.1109/LCOMM.2016.2518662
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Euclidean distance optimized antenna selection (EDAS) can significantly improve the bit-error-rate (BER) performance of spatial modulation (SM) systems. However, the exhaustive search over all possible antenna subsets leads to inherently high-search complexity. In this letter, a cross-entropy-based antenna selection (CEAS) scheme is proposed, by formulating the antenna selection problem in SM as a combinatorial optimization one. Simulation results show that the proposed CEAS scheme achieves considerable reduction in search complexity, while approaching the optimal performance of exhaustive search.
引用
收藏
页码：622 / 625
页数：4
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