This paper develops a generalized channel-aware power control scheme to enhance the multi-packet reception (MPR) capability for random access. In the proposed scheme, each user randomly selects its transmit power with a probability in accordance with a distribution function based on its own channel state. For two-user systems, we show that the optimal power distribution function has a simple discrete structure, based on which the optimal random access strategy can be efficiently computed. Leveraging the relevant insights, we further propose a decentralized binary power control scheme for general K-user systems. It is established that such a simple scheme can asymptotically approach the performance of the optimal centralized scheme, as the system load grows large. Numerical results show that the proposed schemes obtain noticeable performance improvement over the existing alternatives.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Generalized Channel-Aware Power Control Scheme for Random Access with Multi-Packet Reception


    Contributors:
    Xu, Chongbin (author) / Hu, Yang (author) / Wang, Xin (author) / Ping, Li (author)


    Publication date :

    2017-06-01


    Size :

    230271 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Power-Aware Cognitive Packet Networks

    Gelenbe, E. / Lent, R. / North Atlantic Treaty Organization | British Library Conference Proceedings | 2006




    Power reception control method for power reception element and power reception control device

    MURAI KENSUKE / IKEZOE KEIGO / SUZUKI KENTA | European Patent Office | 2022

    Free access