Title :
A comparative study of initial downlink channel estimation algorithms for mobile WiMAX
Author :
Yucek, T. ; Özdemir, M. Kemal ; Arslan, Hüseyin ; Retnasothie, Francis E.
Author_Institution :
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL
Abstract :
Fourth generation (4G) wireless products are expected to be based on worldwide interoperability for microwave access (WiMAX) systems. It is the optimized receiver algorithms that will differentiate competitive products. In this paper, an important receiver algorithm, channel estimation, is studied for mobile WiMAX systems (IEEE 802.16e-2005). Various channel estimation algorithms are studied and compared for initial channel estimation in downlink of IEEE 802.16e-2005. Various methods are analyzed in terms of their computational complexity, mean square error and bit error rate performances under different channel models
Keywords :
4G mobile communication; WiMax; channel estimation; computational complexity; error statistics; mean square error methods; radio access networks; bit error rate; computational complexity; downlink channel estimation algorithm; fourth generation wireless products; mean square error; mobile WiMAX system; worldwide interoperability for microwave access; Cellular networks; Channel estimation; Downlink; Internet; Intersymbol interference; Mean square error methods; OFDM; Quality of service; Signal processing algorithms; WiMAX;
Conference_Titel :
Mobile WiMAX Symposium, 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
1-4244-0957-8
DOI :
10.1109/WIMAX.2007.348698
