Precoded transmit path diversity in FS-OFDM on UWB channels

Haruki Nishimura, Mamiko Inamori, Yukitoshi Sanada, Mohammad Ghavami

Research output: Contribution to journalArticlepeer-review

Abstract

In impulse-radio or DS/SS UWB communications, a prerake scheme has been proposed to achieve path diversity while reducing computational complexity in a mobile terminal. On the other hand, in an OFDM system, fractional sampling (FS) has been proposed to achieve path diversity with a single antenna. However, in the FS-OFDM system, it is necessary to oversample a received signal that leads to larger power consumption in the terminal side. In this paper, a precoded transmit path diversity scheme in an OFDM system has been proposed. The proposed scheme can achieve path diversity without oversampling the received signal.

Original languageEnglish
Pages (from-to)711-725
Number of pages15
JournalWireless Personal Communications
Volume68
Issue number3
DOIs
Publication statusPublished - 2013 Feb

Keywords

  • Fractional sampling
  • OFDM
  • Path diversity
  • Precoding
  • Prerake

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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