Precoded transmit path diversity in FS-OFDM on UWB channels

Haruki Nishimura; Mamiko Inamori; Yukitoshi Sanada; Mohammad Ghavami

doi:10.1007/s11277-011-0478-1

Precoded transmit path diversity in FS-OFDM on UWB channels

Haruki Nishimura, Mamiko Inamori, Yukitoshi Sanada, Mohammad Ghavami

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	711-725
Number of pages	15
Journal	Wireless Personal Communications
Volume	68
Issue number	3
DOIs	https://doi.org/10.1007/s11277-011-0478-1
Publication status	Published - 2013 Feb 1

Keywords

Fractional sampling
OFDM
Path diversity
Precoding
Prerake

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1007/s11277-011-0478-1

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Cite this

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AB - 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.

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