Exponential growth in power consumption of wireless communication devices and lack of progress in battery capacity are increasing pressure for more energy efficient (EE) wireless networks. This paper presents an algorithm for optimum EE time allocation for two cooperative relay selection schemes: opportunistic decode-and- forward (ODF) and opportunistic energy efficiency (OEE) with and without rate constraint. By dynamically optimising transmission time between source and relay it is possible to simultaneously improve EE and minimise capacity loss. Simulation in a multi-user scenario with randomly distributed number and location of cooperative nodes demonstrates the algorithm's effectiveness for improving network performance and applicability to both dynamic and static networks. Results imply a unique globally optimum time and power allocation dependent on relay position.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic Time and Power Allocation for Opportunistic Energy Efficient Cooperative Relay


    Contributors:


    Publication date :

    2017-09-01


    Size :

    424388 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    Relay Selection and Resource Allocation for Energy Harvesting Cooperative Networks

    Deep, M. Prudhvi / Jain, Shubham / Ubaidulla, P. | IEEE | 2017



    Online Power Allocation for Opportunistic Radio Access in Dynamic OFDM Networks

    Marcastel, Alexandre / Belmega, E. Veronica / Mertikopoulos, Panayotis et al. | IEEE | 2016