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Channel Estimation Schemes for ECMA-392 based CR systems  

Choi, Won-Eung (Hankuk University of Foreign Studies)
Joo, Jung-Suk (Hankuk University of Foreign Studies)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.49, no.5, 2012 , pp. 44-50 More about this Journal
Abstract
ECMA-392 is the first CR (cognitive radio) specification for personal/portable devices in TV white space. In ECMA-392, in addition to the long preamble of 2 OFDM symbols, 4 pilot sub-carriers per OFDM symbol are repeatedly transmitted with the period of 13 OFDM symbols. In this paper, we consider channel estimation schemes using both long preamble and pilot sub-carriers: we propose channel estimation schemes in which a first order recursive filter is used, and present a method for reducing channel estimation delay. Computer simulation results indicate that the proposed schemes perform well over slow Rayleigh fading channels.
Keywords
ECMA-392; cognitive radio; channel estimation; first order recursive filter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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