In this paper, we propose a generalized buffer- state-based relaying protocol in the context of finite buffer-aided cooperative systems. More specifically, the proposed relaying scheme relies on two concepts: the simultaneous activation of multiple source-to-relay links; and buffer-state- based relay selection for packet transmission and reception. In order to avoid buffer overflow as well as an empty buffer at the relay nodes, we introduce a novel thresholding scheme that gives priority to link selection. As a result, the proposed scheme is capable of achieving a lower outage probability and a lower end-to-end packet delay than existing buffer-aided relaying protocols. Our simulation results demonstrate the explicit performance advantage of the proposed scheme over conventional schemes, especially for a scenario of a high number of relay nodes.


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    Title :

    Generalized Buffer-State-Based Relay Selection for Fixed-Rate Buffer-Aided Cooperative Systems


    Contributors:


    Publication date :

    2017-06-01


    Size :

    255781 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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