Title :
Low complexity MMSE based channel estimation technique in OFDM systems
Author :
Sharma, Manoj ; Saini, Garima
Author_Institution :
Nat. Inst. of Tech Teachers Training & Res., Chandigarh, India
Abstract :
Channel state information derived from channel estimation is important for receivers to accurately recover the transmitted data. In this paper Channel estimation in OFDM in frequency domain for slow fading channel is considered. The new channel covariance matrix is defined & computational complexity is shown to be reduced. The results of the research work are expected to be useful in OFDM based applications such as IEEE 802.16(d) (FBWA) and equivalent standards.
Keywords :
channel estimation; communication complexity; covariance matrices; fading channels; frequency division multiple access; least mean squares methods; OFDM system; channel covariance matrix; chennel state information; computational complexity; fading channel; low complexity MMSE based channel estimation; orthogonal frequency-division multiplexing; Channel estimation; Error analysis; Fading; Frequency domain analysis; Modulation; OFDM; Signal to noise ratio; LSE; Low Rank Matrix; MMSE Modified MMSE; OFDM Systems;
Conference_Titel :
Computational Intelligence and Computing Research (ICCIC), 2010 IEEE International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4244-5965-0
Electronic_ISBN :
978-1-4244-5967-4
DOI :
10.1109/ICCIC.2010.5705903
