典型文献
Reliability-Optimal Pilot-Assisted Transmission for URLLC over Non-Reciprocal MISO Channels:TDD or FDD?
文献摘要：
In this paper,we focus on the pilot-assisted transmission design for downlink URLLC over non-reciprocal channels,in which the multi-antenna con-troller sends mission-critical data signals to a single-antenna actuator.In this system,the prior knowledge of downlink channel state information(CSI)is a pre-requisite for reliable data transmission.Generally,the acquisition of downlink CSI is completed either via the uplink pilot measurement exploiting channel reci-procity and time-division duplex(TDD)operation,or via the downlink pilot measurement with quantized feedback and frequency division duplex(FDD)oper-ation.Inspired by this,we aim to investigate how the degree of channel non-reciprocity impacts the trans-mission reliability of our URLLC system,and the su-periority between the TDD mode and FDD mode in terms of transmission reliability maximization.To describe the degree of reliability loss,we derive the closed-form approximations on the transmission error probability of URLLC in TDD and FDD modes,via leveraging the Gauss-Hermite and Gauss-Chebyshev quadrature rules.Following by the theoretical approx-imations,we demonstrate how to determine the opti-mal training pilot length and quantized feedback du-ration that maximize the transmission reliability under given latency constraint.Through numerical results,we validate the accuracy of theoretical approximations derived in this paper,and obtain some meaningful con-clusions.
文献关键词：
中图分类号：
作者姓名：
Yuncong Xie;Pinyi Ren
作者机构：
School of Information and Communications Engineering,Xi'an Jiaotong University,Xi'an 710049,China;Shaanxi Smart Networks and Ubiquitous Access Research Center,Xi'an 710049,China
文献出处：
引用格式：
[1]Yuncong Xie;Pinyi Ren-.Reliability-Optimal Pilot-Assisted Transmission for URLLC over Non-Reciprocal MISO Channels:TDD or FDD?)[J].中国通信（英文版）,2022(04):14-27
A类：
reci,procity,periority,imations,clusions
B类：
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AB值：
0.499156
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