This paper proposes a frequency-domain multiple user access scheme termed non-orthogonal frequency division multiple access (NoFDMA), which maintains the same data rate per user while allowing more users to access via non-orthogonal user overlapping in a given spectral band. User side signal processing follows existing standards with minor modifications. Receiver side operation can jointly process signals from all the users. Computational complexity is investigated for NoFDMA, which shows slightly increased operations than the typical orthogonal frequency division multiple access (OFDMA). Nevertheless, effective spectral efficiency of NoFDMA, considering both raw spectral efficiency and computational complexity, is higher than that of OFDMA. The scalability of the multiple access scheme is flexible via tuning the user overlapping ratio. Simulation reveals that the number of accessed users is doubled using the NoFDMA strategy when compared with the traditional OFDMA scheme over the same spectral resource utilization.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Non-Orthogonal Frequency Division Multiple Access


    Contributors:


    Publication date :

    2020-05-01


    Size :

    210015 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




    A Self-Routing Frequency Division Multiple Access Network

    IEEE; Lasers and Electro-Optics Society | British Library Conference Proceedings | 1994


    Orthogonal Frequency-Division Multiplexed Quantum Key Distribution

    Bahrani, Sima / Razavi, Mohsen / Salehi, Jawad A. | British Library Online Contents | 2015


    Equalization for orthogonal frequency division multiplexing system

    Siala,M. / Laleh,G.K. / Ecole National Superieure des Telecommunications,FR | Automotive engineering | 1993


    Orthogonal Frequency-Division Multiplexed Quantum Key Distribution

    Bahrani, Sima / Razavi, Mohsen / Salehi, Jawad A. | British Library Online Contents | 2015