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| Content Provider | IET Digital Library |
|---|---|
| Author | Xia, Xiaochen Xu, Kui Ma, Wenfeng Xu, Youyun |
| Abstract | Opportunistic relay selection (RS) is an efficient method to obtain diversity gain in analogue network coding (ANC) protocol with multiple relays. However, in networks with mobile relays, the channel state information (CSI) used in the RS procedure becomes outdated because of the time-varying nature of fading channels, which severely deteriorates the system performance. In this study, the authors study the RS strategy which aims to optimise the outage performance of the ANC protocol with multiple mobile relays. RS schemes for two different cases are designed, that is, (i) the scheme with only the outdated CSI during the RS procedure, and (ii) the scheme with both the outdated CSI and the statistical knowledge of channels during the RS procedure. The closed-form expressions of the outage probabilities as well as the asymptotic expressions are analytically derived for the proposed schemes, and moreover, the achievable diversities are analysed based on the asymptotic expressions. Simulation results are presented to evaluate the performances while validate the theoretical analyses for the proposed schemes. |
| Starting Page | 1948 |
| Ending Page | 1957 |
| Page Count | 10 |
| ISSN | 17518628 |
| Volume Number | 7 |
| e-ISSN | 17518636 |
| Issue Number | Issue 17, Nov (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0168 |
| Journal | IET Communications |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Amplify And Forward Communication Analogue Network Coding Protocol ANC Protocol Asymptotic Expressions Channel State Information Code CSI Diversity Gain Diversity Reception Fading Channel Mobile Radio System Network Coding Opportunistic Relay Selection Outage Performance Outage Probabilities Probability Protocol Relay Network Reliability RS Statistical Knowledge Statistics System Performance Telecommunication Telecommunication Network Reliability Time-varying Nature Two-way Amplify-and-forward Mobile Relaying |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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