Title :
Channel estimation for indoor diffuse optical OFDM wireless communications
Author :
Hashemi, S.K. ; Ghassemlooy, Zabih ; Chao, L. ; Benhaddou, D.
Author_Institution :
Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne
Abstract :
Pilot insertion for channel estimation in orthogonal frequency division multiplexing (OFDM) is a promising technique for broadband/high data rate wireless communications. In indoor diffuse optical wireless links, channel impulse response depends on the location of the receiver. For links to offer mobility tracking is essential which can be complex to implement. In this paper we propose channel estimation to allow receiver mobility. We have examined channel estimation with different interpolation methods for OFDM system and have compared the symbol error rates (SER) performance.
Keywords :
OFDM modulation; broadband networks; channel estimation; indoor radio; mobile radio; optical fibre networks; wireless channels; broadband wireless communication; channel estimation; channel impulse response; high data rate wireless communication; indoor diffuse optical wireless link; interpolation method; mobility tracking; orthogonal frequency division multiplexing; pilot insertion; Channel estimation; Digital modulation; Digital video broadcasting; Intensity modulation; Interpolation; OFDM modulation; Optical receivers; Optical signal processing; Pulse modulation; Wireless communication; Channel estimation; Indoor optical wireless communication; orthogonal frequency division multiplexing (OFDM);
Conference_Titel :
Broadband Communications, Networks and Systems, 2008. BROADNETS 2008. 5th International Conference on
Conference_Location :
London
Print_ISBN :
978-1-4244-2391-0
Electronic_ISBN :
978-1-4244-2392-7
DOI :
10.1109/BROADNETS.2008.4769121
