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    Non-Regenerative Multi-Way Relaying: Combining the Gains of Network Coding and Joint Processing

    193825_193825.pdf (403.3Kb)
    Access Status
    Open access
    Authors
    Degenhardt, H.
    Rong, Yue
    Klein, A.
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Degenhardt, Holger and Rong, Yue and Klein, Anja. 2013. Non-Regenerative Multi-Way Relaying: Combining the Gains of Network Coding and Joint Processing. IEEE Transactions on Wireless Communications. 12 (11): pp. 5692-5703.
    Source Title
    IEEE Transactions on Wireless Communications
    DOI
    10.1109/TWC.2013.101713.122000
    ISSN
    15361276
    Remarks

    Copyright © 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/19734
    Collection
    • Curtin Research Publications
    Abstract

    In this paper, we consider a non-regenerative multi-group multi-way relaying scenario in which each group consists of multiple half-duplex nodes. Each node wants to share its data with all other nodes within its group. The transmissions are performed via an intermediate non-regenerative half-duplex multi-antenna relay station, termed RS, which spatially separates the different groups. In our proposal, all nodes simultaneously transmit to RS during a common multiple access phase and RS retransmits linearly processed versions of the received signals back to the nodes during multiple broadcast (BC) phases. We propose a novel transmit strategy which exploits analog network coding (ANC) and efficiently combines spatial transceive processing at RS with joint receive processing at each node over multiple BC phases. A closed-form solution for an ANC aware relay transceive filter is introduced and closed-form solutions for the joint receive processing filters at the nodes are presented. Furthermore, self-interference cancellation and successive interference cancellation are exploited at the nodes to improve the joint receive processing. By numerical results, it is shown that the proposed transmit strategy significantly outperforms existing multi-way strategies.

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