In this paper, an optimized codebook design based on rotated angles and extrinsic information transfer (EXIT) chart for a non-orthogonal multiple access scheme, called irregular sparse code multiple access (IrSCMA), is presented. Unlike regular SCMA, in IrSCMA, the defined degree of layer's resource nodes is different, which is beneficial to system performance.It is demonstrated that the new codebook can greatly improve the BER performance especially when the signal-to-noise ratio(SNR) is high, without sacrificing the low detection complexity, compared with the existing codebooks and LDS.


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    Title :

    An Optimized Design of Irregular SCMA Codebook Based on Rotated Angles and EXIT Chart


    Contributors:
    Yu, Lisu (author) / Fan, Pingzhi (author) / Ma, Zheng (author) / Lei, Xianfu (author) / Chen, Dageng (author)


    Publication date :

    2016-09-01


    Size :

    303262 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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