An SNR-adaptive Relaying Algorithm fo Multi-antenna Cooperative Networks
Han, Shuangshuang1,2; Zhang, Peng3; Shi, Feijin4; Wang, Fei-Yue1,5
Source PublicationChina Communications
2017
Issue11Pages:1-7
AbstractMultiple-input multiple-output (MIMO) and cooperative communications have been attracted great attention for the improvements of communication capacity, power consumption, and transmission coverage. The conventional fixed relaying protocols, amplify-and-forward (AF) and decode-andforward (DF), have their own advantages and disadvantages, i.e. AF performs better than DF for low signal-to-noise ratio (SNR) region, while the reverse is true for high SNR region. Therefore, this paper proposes an SNR-adaptive forward (SAF) relaying scheme obtaining the advantages of both AF and DF. Furthermore, the proposed SAF does not need to switch between AF and DF when SNR changes. The main idea is to adaptively derive the soft information at the cooperative relay nodes based on the information of the received signal and the SNR. Besides, based on the theoretical analysis and the simulation results, it is affirmed that the proposed SAF achieves superior performance than both AF and DF for all SNRs. Moreover, the performance gain would be improved with the increasing number of parallel cooperative relay nodes.
KeywordSnr-adaptive
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/15299
Collection复杂系统管理与控制国家重点实验室_先进控制与自动化
Affiliation1.The State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China
2.Qingdao Academy of Intelligent Industries, Qingdao, Shandong Province, China
3.The School of Computer Engineering, Weifang University, Shandong, P. R. China.
4.Communications Headquarters, Ministry of Foreign Affairs of the People’s Republic of China, Beijing, China.
5.Research Center of Computational Experiments and Parallel Systems, The National University of Defense Technology, Changsha, China
Recommended Citation
GB/T 7714
Han, Shuangshuang,Zhang, Peng,Shi, Feijin,et al. An SNR-adaptive Relaying Algorithm fo Multi-antenna Cooperative Networks[J]. China Communications,2017(11):1-7.
APA Han, Shuangshuang,Zhang, Peng,Shi, Feijin,&Wang, Fei-Yue.(2017).An SNR-adaptive Relaying Algorithm fo Multi-antenna Cooperative Networks.China Communications(11),1-7.
MLA Han, Shuangshuang,et al."An SNR-adaptive Relaying Algorithm fo Multi-antenna Cooperative Networks".China Communications .11(2017):1-7.
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