Improvement on diversity gain with filter bandwidth expansion in fractional sampling OFDM receiver

Shinkai Toshiya, Haruki Nishimura, Yukitoshi Sanada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A diversity scheme with fractional sampling (FS) in an OFDM receiver is investigated recently. Through FS, it is possible to separate multipath components and obtain diversity gain in the OFDM system. Expansion of the bandwidth of the total response including transmit and receive baseband filters allows the FS scheme to achieve path diversity. However, the transmit filter is designed according to the spectrum mask of the standards to avoid interference to the other communication systems. In order to achieve the maximum SNR, the same filter is commonly used in the transmitter and the receiver. In this paper, the trade-off between the SNR deterioration and the diversity gain due to the total response larger than the minimal bandwidth is investigated. Numerical results through computer simulation indicate that BER performance with the receive filter of non-minimal bandwidth shows better performance than that with the filter for maximizing the SNR in certain conditions.

Original languageEnglish
Title of host publicationIEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings
Pages832-836
Number of pages5
DOIs
Publication statusPublished - 2009
EventPACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing - Victoria, BC, Canada
Duration: 2009 Aug 232009 Aug 26

Other

OtherPACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
CountryCanada
CityVictoria, BC
Period09/8/2309/8/26

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ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

Cite this

Toshiya, S., Nishimura, H., & Sanada, Y. (2009). Improvement on diversity gain with filter bandwidth expansion in fractional sampling OFDM receiver. In IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings (pp. 832-836). [5291263] https://doi.org/10.1109/PACRIM.2009.5291263