Selected mapping technique for reducing PAPR of single-carrier signals

Amnart Boonkajay, Fumiyuki Adachi

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Single-carrier transmission with frequency-domain equalization (SC-FDE) is widely known as a promising transmission technique providing low error probability with low peak-to-average power ratio (PAPR) of transmit signal. However, the low-PAPR property of SC-FDE cannot be maintained if multi-level data modulation is introduced. The low-PAPR property of SC-FDE can be maintained by applying transmit filtering with roll-off factor at the expense of spectrum efficiency. In this paper, we propose two types of selected mapping (SLM) to reduce the PAPR of SC-FDE transmit signal. The first SLM technique is conducted in the frequency domain, where the phase rotation is applied to subcarriers similar to the SLM technique for orthogonal frequency division multiplexing transmission. The second SLM technique is conducted in the time domain, where the phase rotation is applied directly to data-modulated symbol sequence. Computer simulation confirms that both SLM techniques are able to reduce the PAPR of SC-FDE signal without significant degradation of bit-error rate performance and spectrum efficiency.

    Original languageEnglish
    Pages (from-to)2509-2522
    Number of pages14
    JournalWireless Communications and Mobile Computing
    Volume16
    Issue number16
    DOIs
    Publication statusPublished - 2016 Nov 1

    Keywords

    • frequency-domain equalization (FDE)
    • peak-to-average power ratio (PAPR)
    • selected mapping (SLM)
    • single-carrier (SC) transmission

    ASJC Scopus subject areas

    • Information Systems
    • Computer Networks and Communications
    • Electrical and Electronic Engineering

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