Title :
Synchronization and Channel Estimation for OFDM Systems with Transparent Multi-Hop Relays
Author :
Woo, Kyung Soo ; Yoo, Hyun Il ; Kim, Yeong Jun ; Lee, Heesoo ; Chung, Hyun Kyu ; Cho, Yong Soo
Author_Institution :
Sch. of Electr. & Electron. Eng., Chungang Univ., Seoul
Abstract :
In this paper, the effect of a propagation delay resulting from the use of an OFDM system with a transparent mobile multi-hop relay (MMR) is initially analyzed. Additionally, a channel estimation technique for the OFDM system with throughput enhancement (TE) MMR or cooperative MMR is proposed. Secondly, the effect of a Doppler shift caused by a mobile MS is analyzed and a compensation technique for the carrier frequency offset (CFO) in the OFDM system with TE MMR is proposed.
Keywords :
Doppler shift; OFDM modulation; channel estimation; mobile radio; synchronisation; Doppler shift; OFDM systems; carrier frequency offset; channel estimation; compensation technique; propagation delay; synchronization; throughput enhancement; transparent mobile multihop relay; Cause effect analysis; Channel estimation; Doppler shift; Frequency synchronization; OFDM; Propagation delay; Relays; Spread spectrum communication; Tellurium; Throughput;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.498
