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Decision-directed channel estimation in TETRA system  

Hwang, Won-Sik (서울대학교 전기공학부 송수신기술연구실)
Lee, Yong-Hwan (서울대학교 전기공학부 송수신기술연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.2C, 2009 , pp. 234-241 More about this Journal
Abstract
TETRA Enhanced Data Service (TEDS), which is an upgrade version of narrow-band ETSI TETRA Release 1 system, can support high speed packet data services in frequency selected fading channel. The performance of M-QAM transceivers employed in the TEDS is significantly affected by the accuracy of channel estimation. In this paper, we consider the design of a decision-directed channel estimation scheme robust to fast fading by estimating the channel by means of a per-survivor processing (PSP) method. The performance of the proposed channel estimation scheme is verified by computer simulation.
Keywords
decision-directed channel estimation; per-survivor processing; TEDS; TETRA;
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