Title :
Coupling effects between transmit and receive antennas in frequency offset amplify-and-forward relay
Author :
Kikuchi, Naoya ; Inamori, Mamiko ; Sanada, Yukitoshi
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
The fourth generation mobile communication system is expected to be implemented on a frequency band higher than the bands already assigned for IMT-2000. Therefore, to compensate propagation loss, relay schemes have been investigated. Amplify-and-Forward (AF) relay has advantages on complexity and time slot usage. However, the coupling effect between transmit and receive antennas in the relay station is the cause of performance degradation. Thus, in this paper, the coupling effect is evaluated and a frequency offset amplify-and-forward relay scheme is proposed by the authors. It is shown that the proposed scheme can alleviate the coupling effect in the AF relay system.
Keywords :
4G mobile communication; amplify and forward communication; receiving antennas; relay networks (telecommunication); transmitting antennas; AF relay system; IMT-2000; coupling effects; fourth generation mobile communication system; frequency offset amplify-and-forward relay; propagation loss; receive antennas; transmit antennas; Bit error rate; Couplings; Delay; Interference; OFDM; Receiving antennas; Relays;
Conference_Titel :
Information Theory and its Applications (ISITA), 2012 International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-2521-9