Apparatus for phase noise suppression for OFDM based WLANS

Details Apparatus for phase noise suppression for OFDM based WLANS Apparatus for phase noise suppression for OFDM based WLANS

2011-07-19

2011-07-19

Vuong, Quochien B (Department: 2618)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S203000, C370S210000, C375S346000, C455S063100, C455S296000

Reexamination Certificate

active

07983233

ABSTRACT:
Orthogonal frequency division multiplexing (OFDM) has been specified by IEEE 802.11a standard as the transmission technique for high-rate wireless local area networks (WLANs). Performance of an OFDM system, however, is heavily degraded by random Wiener phase noise, which causes both common phase error (CPE) and inter-carrier interference (ICI). A method and algorithm is disclosed for efficiently eliminating the effect of phase noise in OFDM based WLANs.

REFERENCES:
patent: 6549561 (2003-04-01), Crawford
patent: 6594320 (2003-07-01), Sayeed
patent: 6654408 (2003-11-01), Kadous et al.
patent: 6956893 (2005-10-01), Frank et al.
patent: 7012882 (2006-03-01), Wang et al.
patent: 7206279 (2007-04-01), Taga et al.

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