NDLI: Joint Relay Selection and Analog Network Coding Using Differential Modulation in Two-Way Relay Channels

Content Provider	IEEE Xplore Digital Library
Author	Lingyang Song Guo Hong Bingli Jiao Debbah, M.
Copyright Year	1967
Abstract	In this paper, we consider a general bidirectional relay network with two sources and N relays when neither the source nodes nor the relays know the channel-state information (CSI). A joint relay-selection and analog-network coding using differential modulation (RS-ANC-DM) is proposed. In the proposed scheme, the two sources employ differential modulations and transmit the differential modulated symbols to all relays at the same time. The signal received at the relay is a superposition of two transmitted symbols, which we call analog network-coded symbols. Then, a single relay that has minimum-sum symbol error rate (SER) is selected out of N relays to forward the ANC signals to both sources. To facilitate the selection process, in this paper, we also propose a simple suboptimal Min-Max criterion for relay selection, where a single relay that minimizes the maximum SER of two source nodes is selected. Simulation results show that the proposed Min-Max selection has almost the same performance as the optimal selection but is much simpler. The performance of the proposed RS-ANC-DM scheme is analyzed, and a simple asymptotic SER expression is derived. The analytical results are verified through simulations.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	2932
Ending Page	2939
Page Count	8
File Size	1252841
File Format	PDF
ISSN	00189545
Volume Number	59
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network coding Modulation coding Digital relays Senior members Error analysis Performance analysis Analytical models Protocols Physics computing Mathematics differential modulation Amplify-and-forward protocol analog network coding (ANC) bidirectional relaying
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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