Adjacent channel interference cancellation using orthogonal precoding for fractional sampling OFDM receiver

Eisuke Sakai, Haruki Nishimura, Mamiko Inamori, Yukitoshi Sanada

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    To achieve diversity with a single antenna, fractional sampling has been proposed. The imaging component of a desired signal must be transmitted by increasing the baseband filter bandwidth. This paper proposes and evaluates a system inwhich the imaging component is transmitted on the adjacent channel to the desired signal. The adjacent channel interference is cancelled by the precoding generated based on the basis of the channel state information of all the terminals. In this paper, the performance with perfect feedback and limited feedback is evaluated. Numerical results obtained through computer simulation show that the proposed scheme with a 6 bit random codebook for QPSK modulation improves the performance compared with that with the conventional scheme in the low Eb/N0 region.

    Original languageEnglish
    Pages (from-to)211-225
    Number of pages15
    JournalWireless Personal Communications
    Volume72
    Issue number1
    DOIs
    Publication statusPublished - 2013 Jan 24

    Keywords

    • Fractional sampling
    • Interference cancellation
    • Multipath diversity
    • Ofdm
    • Orthogonal precoding

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering

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