Effect of Joint Detection in Far User on Non-orthogonal Multiple Access Downlink

Takahiro Yazaki, Yukitoshi Sanada

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Non-orthogonal multiple access (NOMA) can share the same frequency band with multiple mobile devices. In the conventional NOMA scheme, the possible pairs of users are limited and this limitation restricts the amount of capacity improvement. This is because the receiver only for the near user cancels the signal of the other user and then detect the desired signal. In this paper, the effect of joint detection in the far user of the NOMA downlink is evaluated through constellation constrained capacity. It allows the pairing of users with the difference of the propagation losses of less than 8 dB. The possible number of user pairs in the NOMA system then increases and a larger total capacity may be achievable.

    Original languageEnglish
    Pages (from-to)1-17
    Number of pages17
    JournalWireless Personal Communications
    DOIs
    Publication statusAccepted/In press - 2016 Apr 21

    Keywords

    • Constellation constrained capacity
    • Joint detection
    • Non-orthogonal multiple access

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Computer Science Applications

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