基于时间反演的多臂赌博机跳空图案生成算法

doi:10.3969/j.issn.1001-506X.2020.12.29

摘要/Abstract

摘要：

在多输入多输出(multiple input multiple output, MIMO)系统中,为了实现系统的防窃听能力,并提高系统容量,提出了一种基于时间反演的多臂赌博机跳空图案生成算法。该算法考虑信道状态信息的误差,以时间反演和跳空通信为基础,结合使用多臂赌博机算法选取最优跳空图案以提高系统容量的同时降低因防窃听对合法接收端性能的影响。理论分析和仿真结果表明,该算法在防窃听性能、系统容量方面具有优势。

关键词: 时间反演, 多臂赌博机, 跳空图案, 系统容量

Abstract:

In order to realize the anti-eavesdropping ability and increase the system capacity of the multiple input multiple output (MIMO) system, a space hopping pattern generation algorithm of multi-armed bandit based on time reversal (TR-MAB) is proposed. This algorithm considers the error of the channel state information, and based on the time reversal and space hopping communication, the optimal space hopping pattern is selectedly using the multi-armed bandit algorithm to increase the system capacity while reducing the impact of anti-eavesdropping on the performance of legitimate receivers. Theoretical analysis and simulation results show that the algorithm has advantages in anti-eavesdropping performance and system capacity.

Key words: time reversal, multi-armed bandit, space hopping pattern, system capacity

中图分类号:

TN914.53

吕志强, 朱江. 基于时间反演的多臂赌博机跳空图案生成算法[J]. 系统工程与电子技术, 2020, 42(12): 2906-2914.

Zhiqiang LYU, Jiang ZHU. Space hopping pattern generation algorithm of multi-armed bandit based on time reversal[J]. Systems Engineering and Electronics, 2020, 42(12): 2906-2914.

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参数	取值
采样周期T_s/ns	2
时延拓展σ_T/ns	80
多径数L	17
蒙特卡罗仿真次数K	10 000
发射端天线数M	8
每个跳空图案对应的天线数M_T	4
接收端天线数N_B	2
窃听端天线数N_E	2
信道带宽B/MHz	500

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