Abstract
The purpose of this research is to achieve maximum ergodic capacity of wireless MIMO relay assisted network by designing relay linear processing. A novel linear beamforming is developed for amplify-and-forward two-hop multi-relay wireless network. In this design matched-filter beamforming is applied as receive processing for multiple relays and leakage based beamforming is designed as the relay transmit beamforming. Each terminal of the network is fitted with multiple antennas for intra node array gain. The information of both links is exploited at the relay terminals. The link (direct) from the source to user terminal is avoided. The relay terminals operate in half duplex mode. Through Matlab® simulations, it is revealed that the proposed scheme out performs the existing conventional relay beamformings for multi-relay case in the two-hop network.
Keyword(s)
Amplify-and-forward Relay, Capacity, Leakage, Multiple relays, Perfect CSI