Title :
Space-frequency transmission and channel estimation for 2×2 cooperative systems
Author :
Jiang, Qi ; Chen, Jiming ; Shen, Gang ; Jin, Shan
Author_Institution :
Res. & Innovation Center, Alcatel-Lucent Shanghai Bell Co., Ltd., Shanghai, China
Abstract :
In this paper, we propose a distributed space-frequency transmit scheme in double selective channels for the OFDM cooperative system with two source and two destination nodes. In stead of interfering with each other, the two links cooperate by letting a source be a relay of the other one. Under this structure, the two sources can fulfill cooperative transmission together. We also design the frame structure to estimate the double selective channels. With the proper transmit and receive processing, the performance of this scheme can approach that of the 2 × 1 space-frequency block code.
Keywords :
OFDM modulation; block codes; channel estimation; space-time codes; OFDM cooperative system; destination nodes; distributed space-frequency transmit scheme; double selective channel estimation; space-frequency block code; Block codes; Channel estimation; Channel state information; Cooperative systems; Diversity reception; Interference; MIMO; OFDM; Relays; Technological innovation; channel estimation; cooperative system; space-frequency diversity;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450382
