TY - GEN
T1 - Non-uniform sampling point selection in OFDM receiver with fractional sampling
AU - Nishimura, Haruki
AU - Inamori, Mamiko
AU - Sanada, Yukitoshi
AU - Ghavami, Mohammad
PY - 2009/12/1
Y1 - 2009/12/1
N2 - 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.
AB - 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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U2 - 10.1109/PACRIM.2009.5291260
DO - 10.1109/PACRIM.2009.5291260
M3 - Conference contribution
AN - SCOPUS:74049112886
SN - 9781424445615
T3 - IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings
SP - 837
EP - 842
BT - PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
T2 - PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
Y2 - 23 August 2009 through 26 August 2009
ER -