NDLI: Partial relay selection for a roadside-based two-way amplify-and-forward relaying system in mixed Nakagami-m and ‘double’ Nakagami-m fading

Content Provider	IET Digital Library
Author	Hu, Yun Li, Hongyan Zhang, Chensi Li, Jiandong
Abstract	This study analyses the performance of a roadside two-way relaying system in which a roadside access point (AP) and a vehicle exchange messages with the aid of amplify-and-forward mobile relay (MR) based on partial relay selection. It has been shown that AP-MR-vehicle communications may experience severer channel fading than conventional cellular communications. Mixed Nakagami-m and ‘double’ Nakagami-m fading is adopted to provide a realistic description of the involved AP-MR-vehicle channels. In this scenario, a tight closed-form lower bound and high signal-to-noise ratio approximate expression for the system outage probability are derived. By applying these results, the authors obtain the diversity and the coding gains and the average symbol error rate for the considered system. In particular, the optimum number of relays is provided, providing valuable guidelines for practical system design. It is shown that when the number of relays is greater than the optimum number, no performance gain would be further achieved. The simulation results highlight the authors theoretical analysis.
Starting Page	571
Ending Page	577
Page Count	7
ISSN	17518628
Volume Number	8
e-ISSN	17518636
Issue Number	Issue 5, Mar (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/8/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2013.0468
Journal	IET Communications
Publisher Date	2014-02-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplify And Forward Communication Amplify-and-forward Mobile Relay AP-MR-vehicle Communication Average Symbol Error Rate Cellular Communication Channel Fading Coding Gain Double Nakagami-m Fading High Signal-to-noise Ratio Approximate Expression Mixed Nakagami-m Fading Mobile Communication Mobile Radio System Nakagami Channel Partial Relay Selection Probability Relay Network Roadside Access Point Roadside-based Two-way Amplify-and-forward Relaying System Statistics System Outage Probability Telecommunication Tight Closed-form Lower Bound Vehicle Exchange Messages
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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