In this paper, we analyze the performance of two low-complexity uniform power loading with reduced- overhead orthogonal frequency division multiplexing (OFDM) schemes over Rayleigh fading channels. In the first feedback scheme, the receiver feeds back to the transmitter the channel gains and the indices of the best $M$ subchannels; while for the second feedback scheme, the receiver feeds back only the indices of the best $M$ subchannels. In both schemes, the available power budget is equally distributed over the best $M$ subchannels. We derive closed-form expressions for the capacity and the outage capacity of the first and second schemes, respectively. Numerical results show that there is an optimal number of the best subchannels, $M$, that maximizes the achievable capacity and it depends on the system parameters.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance Analysis of Low-Complexity Uniform Power Loading with Reduced-Overhead OFDM Systems over Rayleigh Fading Channels


    Contributors:


    Publication date :

    2015-09-01


    Size :

    106822 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Security Performance Analysis Based on the Average Rate over Rayleigh Fading Channels

    Lin, Shengbin / Xia, Rongze / Liu, Haibo et al. | IEEE | 2018




    Turbo-TCM Performance under AWGN and Rayleigh Fading Channels

    REN, Jun-tao / WANG, Mu-zhong / SHAO, Ding-rong | Elsevier | 2003

    Free access

    Performance of Correlated Diversity techniques on Rayleigh fading channels

    Kempeneers, P. / Moeneclaey, M. / IEEE; Vehicular Technology/Communications Society; Joint Chapter in the Benelux Section et al. | British Library Conference Proceedings | 1995