Title :
Channel Equalization of MIMO OFDM System Using RLS Algorithm
Author :
Noori, Khalida ; Haider, Sami Ahmed
Author_Institution :
Coll. of Signals, Nat. Univ. of Sci. & Technol., Rawalpindi
Abstract :
This paper proposes a simple and efficient method for channel equalization of MIMO-OFDM system with channel estimation. Channel equalization of multiple inputs multiple outputs orthogonal frequency division multiplexing (MIMO-OFDM) for Rayleigh fading and AWGN channel is simulated. Temporal variations in channel are due to the Doppler spread, a sign of relative motion between transmitter and receiver. This paper evaluates performance of a MIMO OFDM system with different number of transmit and receive antennas, using different modulation schemes and at different values of signal to noise ratio (SNR). Decision feed back equalizer (DFE) is used for equalization.
Keywords :
AWGN channels; MIMO communication; OFDM modulation; Rayleigh channels; channel estimation; decision feedback equalisers; least squares approximations; receiving antennas; transmitting antennas; AWGN channel; Doppler spread; MIMO OFDM system; Rayleigh fading; channel equalization; channel estimation; decision feedback equalizer; receive antennas; recursive least squares; transmit antennas; AWGN channels; Channel estimation; Decision feedback equalizers; MIMO; OFDM; Rayleigh channels; Receiving antennas; Resonance light scattering; Signal to noise ratio; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.47
