Uplink Channel Estimation in WiMAX

Author

Ho, Kenneth ; Kwasinski, Andres

Author_Institution

Electr. & Comput. Eng., Univ. of Maryland, College Park, MD

fYear

2009

fDate

5-8 April 2009

Firstpage

1

Lastpage

6

Abstract

WiMAX is an emerging and powerful technology in broadband wireless communications in that it can simultaneously provide high-speed broadband services over large distances. However, signal distortion due to channel fading, noise, and Doppler can limit the overall transmission data rate and coverage. To minimize the impact, channel estimation must be performed to remove the effects of the channel. In this paper, we present uplink channel estimation algorithms for WiMAX PUSC and AMC and analyze their performance under different channel conditions. Our results show that the performance of each algorithm depends largely on the channel delay spread and signal-to-noise ratio.

Keywords

WiMax; broadband networks; channel estimation; delays; fading channels; WiMAX; broadband wireless communications; channel delay spread; channel fading; noise; signal distortion; signal-to-noise ratio; uplink channel estimation; Algorithm design and analysis; Broadband communication; Channel estimation; Delay; Distortion; Fading; Performance analysis; Signal to noise ratio; WiMAX; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE

Conference_Location

Budapest

ISSN

1525-3511

Print_ISBN

978-1-4244-2947-9

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2009.4918011

Filename

4918011