We show that non-orthogonal multiple access (NOMA) and orthogonal multiple access (OMA) have similar performance in systems with centralized control and perfect channel state information (CSI). Otherwise, NOMA has distinct advantages over OMA. We outline a randomized power control (RPC) strategy for NOMA. RPC can provide significantly enhanced throughput in random access systems with successive interference cancelation (SIC) or iterative detection. We also show that interleave division multiple access (IDMA) is a simple implementation technique for NOMA to facilitate RPC.


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    Title :

    NOMA and IDMA in Random Access Systems - Invited Paper


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


    Publication date :

    2018-06-01


    Size :

    392479 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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