多输入多输出合作通信的高效训练和数据传输：时空编码方法

IF 4.1 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2024-10-01 DOI:10.1016/j.icte.2024.08.003

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引用次数: 0

摘要

获取信道状态信息（CSI）的训练开销不可避免，从而限制了通信性能。本文提出了一种基于空时码（STC）的合作通信方案，该方案采用双天线中继节点（RN），仅从两个天线向源节点（SN）和目的节点（DN）广播两个正交先导序列，从而减少了训练开销。对接收信噪比、可实现速率和误码率进行了数学分析，数值结果证实，无论 SN 和 DN 的天线数量如何，拟议的基于 STC 的中继系统都能提高可实现速率。

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Efficient training and data transmission for cooperative MIMO communications: Space–time coding approach

The communication performance can be restricted by inevitable training overhead for acquiring channel state information (CSI). A space–time code (STC)-based cooperative communication scheme is proposed to reduce the training overhead by employing a two-antenna relay node (RN) that broadcasts merely two orthogonal pilot sequences from the two antennas to a source node (SN) and a destination node (DN). The received signal-to-noise ratio, the achievable rate, and the bit error rate are mathematically analyzed, and numerical results confirm that the proposed STC-based relay system increases the achievable rate irrespective of the number of antennas at SN and DN.

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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.