Non-uniform sampling point selection in OFDM receiver with fractional sampling

Haruki Nishimura; Mamiko Inamori; Yukitoshi Sanada; Mohammad Ghavami

doi:10.1109/PACRIM.2009.5291260

Non-uniform sampling point selection in OFDM receiver with fractional sampling

Haruki Nishimura, Mamiko Inamori, Yukitoshi Sanada, Mohammad Ghavami

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

To achieve diversity with a single antenna, a fractional sampling (FS) scheme in OFDM has been proposed. In the previous literatures for FS, the sampling interval is fixed. An oversampling rate needs to be large to obtain more path diversity gain through FS. This leads to the increase of a circuit size for demodulation in a mobile terminal. In this paper, sampling point selection according to the frequency response of a channel has been proposed. The proposed scheme reduces the number of demodulation branches to a half as compared to the conventional FS scheme to achieve the same bit error rate. Moreover, by eliminating the specific sets of the sampling points, the computational complexity for sampling point selection is also reduced by a factor of 2.

Original language	English
Title of host publication	PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
Pages	837-842
Number of pages	6
DOIs	https://doi.org/10.1109/PACRIM.2009.5291260
Publication status	Published - 2009 Dec 1
Event	PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing - Victoria, BC, Canada Duration: 2009 Aug 23 → 2009 Aug 26

Publication series

Name	IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings

Other

Other	PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
Country/Territory	Canada
City	Victoria, BC
Period	09/8/23 → 09/8/26

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/PACRIM.2009.5291260

Cite this

Nishimura, H., Inamori, M., Sanada, Y., & Ghavami, M. (2009). Non-uniform sampling point selection in OFDM receiver with fractional sampling. In PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (pp. 837-842). [5291260] (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings). https://doi.org/10.1109/PACRIM.2009.5291260

Non-uniform sampling point selection in OFDM receiver with fractional sampling. / Nishimura, Haruki; Inamori, Mamiko; Sanada, Yukitoshi; Ghavami, Mohammad.

PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. 2009. p. 837-842 5291260 (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishimura, H, Inamori, M, Sanada, Y & Ghavami, M 2009, Non-uniform sampling point selection in OFDM receiver with fractional sampling. in PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing., 5291260, IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings, pp. 837-842, PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Victoria, BC, Canada, 09/8/23. https://doi.org/10.1109/PACRIM.2009.5291260

Nishimura H, Inamori M, Sanada Y, Ghavami M. Non-uniform sampling point selection in OFDM receiver with fractional sampling. In PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. 2009. p. 837-842. 5291260. (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings). https://doi.org/10.1109/PACRIM.2009.5291260

Nishimura, Haruki ; Inamori, Mamiko ; Sanada, Yukitoshi ; Ghavami, Mohammad. / Non-uniform sampling point selection in OFDM receiver with fractional sampling. PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing. 2009. pp. 837-842 (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings).

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abstract = "To achieve diversity with a single antenna, a fractional sampling (FS) scheme in OFDM has been proposed. In the previous literatures for FS, the sampling interval is fixed. An oversampling rate needs to be large to obtain more path diversity gain through FS. This leads to the increase of a circuit size for demodulation in a mobile terminal. In this paper, sampling point selection according to the frequency response of a channel has been proposed. The proposed scheme reduces the number of demodulation branches to a half as compared to the conventional FS scheme to achieve the same bit error rate. Moreover, by eliminating the specific sets of the sampling points, the computational complexity for sampling point selection is also reduced by a factor of 2.",

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Non-uniform sampling point selection in OFDM receiver with fractional sampling

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