Title :
Beamforming and Interference Alignment Transmission Mechanism Based on Optimal Relay Selection
Author :
Liu Ce ; Wang Yafeng
Author_Institution :
Wireless Theor. & Technol. Lab. (WT&T), Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, we consider the two-hop MIMO interference network, where T source-destination pairs communicate via T×K relays selected from G alternative relays. Based on optimal relay selection, each source-destination pair selected K relays to transmit data streams. In the first time slot, the source node transmits data steams to the selected relays by adaptive beam forming. In the second time slot, the selected relays forward the data streams by interference alignment technique. Compared the beam forming and interference alignment transmission mechanism based on fairness relay selection, our scheme can achieve higher system capacity.
Keywords :
MIMO communication; array signal processing; radiofrequency interference; relay networks (telecommunication); adaptive beamforming; beamforming alignment transmission mechanism; data stream transmission; interference alignment technique; interference alignment transmission mechanism; optimal relay selection; source destination; source node transmits data steams; two-hop MIMO interference network; Array signal processing; Equations; Interference channels; MIMO; Relays; Vectors; MIMO; beamforming; interference alignment; optimal relay selection;
Conference_Titel :
Computational Intelligence & Communication Technology (CICT), 2015 IEEE International Conference on
Conference_Location :
Ghaziabad
Print_ISBN :
978-1-4799-6022-4
DOI :
10.1109/CICT.2015.154
