Precoded transmit path diversity in FS-OFDM

Author

Nishimura, Haruki ; Inamori, Mamiko ; Sanada, Yukitoshi ; Ghavami, Mohammad

Author_Institution

Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan

fYear

2011

fDate

17-19 June 2011

Firstpage

138

Lastpage

143

Abstract

In Impulse-Radio or DS/SS UWB communications, a prerake scheme has been proposed to achieve 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.

Keywords

OFDM modulation; communication complexity; diversity reception; power consumption; precoding; ultra wideband communication; DS/SS UWB communications; FS-OFDM; OFDM system; computational complexity; fractional sampling; impulse-radio; power consumption; precoded transmit path diversity; prerake scheme; Bit error rate; Channel models; Diversity reception; OFDM; Rayleigh channels; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Access Spaces (ISAS), 2011 1st International Symposium on

Conference_Location

Yokohama

Print_ISBN

978-1-4577-0716-2

Electronic_ISBN

978-1-4577-0715-5

Type

conf

DOI

10.1109/ISAS.2011.5960935

Filename

5960935