TY - GEN
T1 - ICi reduction in OFDM by using maximally flat windowing
AU - Maham, Behrouz
AU - Hjørungnes, Are
PY - 2007/12/1
Y1 - 2007/12/1
N2 - Conventional Orthogonal Frequency Division Multiplexing (OFDM) receivers disregard oversized guard intervals. An (adaptive) Nyquist-shaped receive window could exploit signal samples in its unconsumed portion to improve demodulation. This paper presents a novel windowing scheme that optimally reduces the Inter-carrier interference (ICI) resulting from frequency offset in orthogonal frequency-division multiplexing. In frequency domain, the proposed window has a maximally flat shape at all the subcarrier frequencies. A general closed-form solution for these optimal windows is derived. The simulation results shows that the maximally flat (MF) window has a much better bit error rate performance than the common raised-cosine window and the newly proposed "better than" raised-cosine window.
AB - Conventional Orthogonal Frequency Division Multiplexing (OFDM) receivers disregard oversized guard intervals. An (adaptive) Nyquist-shaped receive window could exploit signal samples in its unconsumed portion to improve demodulation. This paper presents a novel windowing scheme that optimally reduces the Inter-carrier interference (ICI) resulting from frequency offset in orthogonal frequency-division multiplexing. In frequency domain, the proposed window has a maximally flat shape at all the subcarrier frequencies. A general closed-form solution for these optimal windows is derived. The simulation results shows that the maximally flat (MF) window has a much better bit error rate performance than the common raised-cosine window and the newly proposed "better than" raised-cosine window.
KW - Frequency offset
KW - Inter-carrier interference (ICI)
KW - OFDM
KW - Windowing
UR - http://www.scopus.com/inward/record.url?scp=60349089977&partnerID=8YFLogxK
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U2 - 10.1109/ICSPC.2007.4728500
DO - 10.1109/ICSPC.2007.4728500
M3 - Conference contribution
AN - SCOPUS:60349089977
SN - 9781424412365
T3 - ICSPC 2007 Proceedings - 2007 IEEE International Conference on Signal Processing and Communications
SP - 1039
EP - 1042
BT - ICSPC 2007 Proceedings - 2007 IEEE International Conference on Signal Processing and Communications
T2 - 2007 IEEE International Conference on Signal Processing and Communications, ICSPC 2007
Y2 - 14 November 2007 through 27 November 2007
ER -