Title :
MMSE Channel Estimation for OFDM Systems with Transparent Multi-Hop Relays
Author :
Woo, Kyung Soo ; Lee, Heesoo ; Chung, Hyun Kyu ; Cho, Yong Soo
Author_Institution :
Chung-Ang Univ., Seoul
Abstract :
In this paper, a minimum mean square error (MMSE) channel estimation technique for an OFDM system with a transparent mobile multi-hop relay (MMR) is proposed by taking into account the effect of propagation delays due to relaying. It is demonstrated by computer simulation that the proposed MMSE channel estimation technique for OFDM systems with cooperative MMR is superior to the conventional technique in terms of the mean square error (MSE) and bit error rate (BER).
Keywords :
OFDM modulation; channel estimation; error statistics; least mean squares methods; mobile radio; MMSE channel estimation; OFDM systems; bit error rate; minimum mean square error channel estimation technique; propagation delays; transparent mobile multi-hop relay; Antennas and propagation; Bit error rate; Channel estimation; Frequency synchronization; Mean square error methods; OFDM; Propagation delay; Relays; Tellurium; Timing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394463
