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
Sch. of Electr. & Electron. Eng., Chungang Univ., Seoul;
This paper appears in: Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Publication Date: 22-25 April 2007
On page(s): 2414-2418
Location: Dublin,
ISSN: 1550-2252
ISBN: 1-4244-0266-2
INSPEC Accession Number: 9528925
Digital Object Identifier: 10.1109/VETECS.2007.498
Current Version Published: 2007-05-29
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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