Title :
A Channel Estimation Method Base on Selection of CTIR Length in MIMO-OFDM Systems
Author :
Li, Li ; Wang Ke ; Li Juan
Author_Institution :
Coll. of Commun. Eng., Jilin Univ., Changchun
Abstract :
The multiple transmit and receive antennas can be used in OFDM systems to improve communication quality and capacity.In this paper,a channel estimation method base on selection of channel time impulse response (CTIR) length for MIMO-OFDM system is investigated. Simulation results both in terms of mean square error(MSE) and symbol error rate(SER) via Monte Carlo show that Comparing with Conventional LS and MMSE algorithm, the performance of proposed MMSE estimation algorithm outperforms Conventional LS , inferiors to Conventional MMSE,but its calculation complexity is lower than Conventional MMSE,thereby,the compromise is performed between performance and complexity by selection of CIR length.
Keywords :
MIMO communication; Monte Carlo methods; antenna arrays; channel estimation; least mean squares methods; transient response; CTIR length selection; MIMO-OFDM systems; MMSE estimation algorithm; Monte Carlo; channel estimation method; channel time impulse response length; conventional LS algorithm; mean square error; multiple transmit antennas; receive antennas; symbol error rate; Channel estimation; Computer errors; Discrete Fourier transforms; Educational institutions; Fourier transforms; Frequency estimation; MIMO; Monte Carlo methods; OFDM; Receiving antennas;
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.2007.15
