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Synchronization and Channel Estimation for OFDM Systems with Transparent Multi-Hop Relays
Kyung Soo Woo; Hyun Il Yoo; Yeong Jun Kim; Heesoo Lee; Hyun Kyu Chung; Yong Soo Cho;
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
22-25 April 2007
Page(s):2414
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2418
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.
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