多用户MIMO-WET系统中短包传输的块错误概率分析

doi:10.13190/j.jbupt.2019-187

北京邮电大学学报 ›› 2020, Vol. 43 ›› Issue (3): 51-58.doi: 10.13190/j.jbupt.2019-187

多用户MIMO-WET系统中短包传输的块错误概率分析

赵伟, 骆亚菲, 鲍慧, 王斌

华北电力大学电气与电子工程学院, 保定 071000

收稿日期:2019-09-09 出版日期:2020-06-28 发布日期:2020-06-24
通讯作者: 骆亚菲(1993-),女,硕士生,E-mail:luoyafei1006@126.com. E-mail:luoyafei1006@126.com
作者简介:赵伟(1980-),男,讲师.
基金资助:
国家自然科学基金项目（61971190）；中央高校基本科研业务费专项项目（2019MS089，2015MS95）

Packet Error Probability Analysis of Multiuser MIMO-WET System with Short-Packet Transmission

ZHAO Wei, LUO Ya-fei, BAO Hui, WANG Bin

School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071000, China

Received:2019-09-09 Online:2020-06-28 Published:2020-06-24
Supported by:

摘要/Abstract

摘要： 针对超可靠低时延通信的收发设备能量受限和超可靠性要求的特点，将多天线技术应用于无线能量捕获的短包传输系统，研究了多用户多天线无线能量传输（MIMO-WET）系统中短包传输的块错误概率性能.首先利用每个用户的信噪比累积分布函数和高斯函数近似的方法，推导出块错误概率的近似闭合表达式；然后对无线能量传输阶段中的时隙数和无线信息传输（WIT）阶段中的功率分配系数因子进行联合优化，实现总块错误概率的最小化.仿真结果验证了所推导的块错误概率闭合表达式的正确性，并根据仿真数据得到：在给定信息传输的块长度和天线数量条件下，WET和WIT所用时隙数存在最优值.

关键词: 短包传输, 多天线, 能量捕获, 块错误概率, 时延

Abstract: Aiming at the characteristics of ultra-reliable low-latency communication transceiver equipment with limited energy and ultra-reliability requirements, the multi-antenna technology is applied to the short-packet transmission system of wireless energy harvesting and the packet error probability (PEP) performance of multiuser multi-antenna-wireless energy transmission (MIMO-WET) system with short-packet transmission is studied accordingly. Firstly, an approximate closed-form expression of the packet error probability is obtained by utilizing the cumulative distribution function of the signal-to-noise ratio for each user and the Gaussian function approximation method.Then the number of channel uses in the wireless energy transmission phase and the power allocation factors in the wireless information transmission (WIT) phase are jointly optimized for minimizing the sum-PEP of all users.Simulations validate the correctness of the closed expression of the packet error probability.It is shown that there are optimum numbers of channels uses for WET and WIT for given packet length of information transmission and the number of antennas.

Key words: short packet transmission, multi-antenna, wireless energy transfer, the packet error probability, latency

中图分类号:

TN929

赵伟, 骆亚菲, 鲍慧, 王斌. 多用户MIMO-WET系统中短包传输的块错误概率分析[J]. 北京邮电大学学报, 2020, 43(3): 51-58.

ZHAO Wei, LUO Ya-fei, BAO Hui, WANG Bin. Packet Error Probability Analysis of Multiuser MIMO-WET System with Short-Packet Transmission[J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(3): 51-58.

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多用户MIMO-WET系统中短包传输的块错误概率分析

Packet Error Probability Analysis of Multiuser MIMO-WET System with Short-Packet Transmission

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