DocumentCode :
1570549
Title :
Comparison of channel estimation schemes for MIMO two-way relaying systems
Author :
Fang, Zhaoxi ; Shi, Jiong ; Shan, Hangguan
Author_Institution :
Sch. of Electron. & Inf. Eng., Zhejiang Wanli Univ., Ningbo, China
Volume :
1
fYear :
2011
Firstpage :
719
Lastpage :
722
Abstract :
In this paper, we investigate the performance of two-way amplify-and-forward (AF) MIMO relaying systems with different channel estimation schemes. Two channel estimation schemes, named cascaded channel estimation and individual channel estimation, are considered. In the first scheme, the cascaded source-relay-destination links are estimated at the two users, and no channel estimation is need at the relay station. In the individual scheme, the channels from the users to the relay are estimated at the relay station, and then the estimated CSIs are feed-forward to the two users, while the channels from the relay to the users are estimated at the two users, respectively. The mean square error (MSE) and bit-error-rate (BER) performance of these two schemes are compared through numerical simulations. The simulation results show that the individual scheme outperforms the cascaded scheme in various cases.
Keywords :
MIMO communication; amplify and forward communication; channel estimation; error statistics; mean square error methods; numerical analysis; radio links; BER performance; CSI; MSE performance; bit error rate performance; cascaded channel estimation; cascaded source-relay-destination links; mean square error performance; numerical simulation; relay station; two-way amplify and forward MIMO relaying system; MIMO; Signal to noise ratio; amplify-and-forward; channel estimation; performance comparison; two-way relaying;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-9792-8
Type :
conf
DOI :
10.1109/CSQRWC.2011.6037053
Filename :
6037053
Link To Document :
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