SR-DCSK cooperative communication system with code index modulation: A new design for 6G new radios

IF 3.1 3区计算机科学 Q2 TELECOMMUNICATIONS

China Communications Pub Date : 2023-10-01 DOI:10.23919/jcc.fa.2022-0297.202310

Yi Fang, Wang Chen, Pingping Chen, Yiwei Tao, Mohsen Guizani

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引用次数: 3

Abstract

This paper proposes a high-throughput short reference differential chaos shift keying cooperative communication system with the aid of code index modulation, referred to as CIM-SR-DCSK-CC system. In the proposed CIM-SR-DCSK-CC system, the source transmits information bits to both the relay and destination in the first time slot, while the relay not only forwards the source information bits but also sends new information bits to the destination in the second time slot. To be specific, the relay employs an N-order Walsh code to carry additional log 2 N information bits, which are superimposed onto the SR-DCSK signal carrying the decoded source information bits. Subsequently, the superimposed signal carrying both the source and relay information bits is transmitted to the destination. Moreover, the theoretical bit error rate (BER) expressions of the proposed CIM-SR-DCSK-CC system are derived over additive white Gaussian noise (AWGN) and multipath Rayleigh fading channels. Compared with the conventional DCSK-CC system and SR-DCSK-CC system, the proposed CIM-SR-DCSK-CC system can significantly improve the throughput without deteriorating any BER performance. As a consequence, the proposed system is very promising for the applications of the 6G-enabled low-power and high-rate communication.

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SR-DCSK编码索引调制协同通信系统:6G新无线电的新设计

本文提出了一种基于码索引调制的高吞吐量短参考差分混沌移位键控协同通信系统，称为CIM-SR-DCSK-CC系统。在所提出的CIM-SR-DCSK-CC系统中，源端在第一个时隙向中继端和目的端发送信息位，中继端在转发源端信息位的同时，在第二个时隙向目的端发送新的信息位。具体来说，中继采用一个N阶沃尔什码来携带额外的log 2 N个信息位，这些信息位叠加到携带解码源信息位的SR-DCSK信号上。随后，同时携带源信息位和中继信息位的叠加信号被传输到目的地。在加性高斯白噪声(AWGN)和多径瑞利衰落信道条件下，推导了该系统的理论误码率(BER)表达式。与传统的DCSK-CC系统和SR-DCSK-CC系统相比，所提出的CIM-SR-DCSK-CC系统在不降低误码率的前提下显著提高了吞吐量。因此，所提出的系统对于支持6g的低功耗和高速率通信的应用非常有希望。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

China Communications 工程技术-电信学

CiteScore

8.00

自引率

12.20%

发文量

2868

审稿时长

8.6 months

期刊介绍： China Communications (ISSN 1673-5447) is an English-language monthly journal cosponsored by the China Institute of Communications (CIC) and IEEE Communications Society (IEEE ComSoc). It is aimed at readers in industry, universities, research and development organizations, and government agencies in the field of Information and Communications Technologies (ICTs) worldwide. The journal's main objective is to promote academic exchange in the ICTs sector and publish high-quality papers to contribute to the global ICTs industry. It provides instant access to the latest articles and papers, presenting leading-edge research achievements, tutorial overviews, and descriptions of significant practical applications of technology. China Communications has been indexed in SCIE (Science Citation Index-Expanded) since January 2007. Additionally, all articles have been available in the IEEE Xplore digital library since January 2013.