Impact of Outdated CSI on the Performance of Incremental Amplify-and-Forward Opportunistic Relaying

被引：0
|
作者：
Zhou, Tsingsong [1 ,2 ,3 ]
Gao, Qiang [1 ,2 ]
Fei, Li [4 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Natl Key Lab CNS ATM, Beijing 100191, Peoples R China
[3] Anhui Polytech Univ, Sch Elect Engn, Wuhu 241000, Anhui, Peoples R China
[4] Wuhan Maritime Commun Res Inst, Wuhan 430205, Hubei Province, Peoples R China
来源：
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS | 2016年 / 10卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Outdated CSI; incremental relaying; amplify-and-forward; opportunistic relaying; average spectral efficiency; outage probability; USER COOPERATION DIVERSITY; CAPACITY ANALYSIS; SELECTION; PROTOCOLS; NETWORKS; ERROR; DELAY;
D O I：
10.3837/tiis.2016.06.007
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper investigates the impact of outdated channel state information (CSI) on the performance of the incremental amplify-and-forward (AF) opportunistic relaying (OR) over dual-hop Rayleigh fading channels. According to the definition of distribution function, we obtain the cumulative distribution function (CDF) of the actual combined signal-to-noise ratio (SNR) received at the destination. Based on this CDF, the closed-form expressions of the average spectral efficiency and outage probability are derived for the incremental AF OR under outdated CSI. Numerical results show that in the low region of the average SNR of the direct link, outdated CSI deteriorates the system performance, whereas in the high region, outdated CSI has almost no impact on the system performance.
引用
收藏
页码：2567 / 2582
页数：16
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