Title :
Cognitive Two-Way Relay with Asymmetric Traffics
Author :
Xiaodong Ji ; Xing Gao
Author_Institution :
Sch. of Electron. & Inf., Nantong Univ., Nantong, China
Abstract :
A cognitive two-way relay network scenario is considered, where a secondary user acts as a two-way relay to forward messages for two primary terminals with the objective of enhancing the service quality of primary terminals and the opportunity for the transmission of its data. Based on the outage analysis, a novel protocol of cognitive two-way relay is proposed, which combines the benefits of the two conventional schemes depending on the position of the secondary user. Moreover, a time-slot dividing policy between the primary and secondary transmissions is proposed and analyzed in terms of the ergodic capacity. Simulation results validate the studies in this paper.
Keywords :
cognitive radio; protocols; quality of service; relay networks (telecommunication); telecommunication traffic; asymmetric traffic; cognitive two-way relay network; ergodic capacity; outage analysis; service quality; time-slot dividing policy; Bidirectional control; Cognitive radio; Educational institutions; Electronic mail; Protocols; Relays; Simulation;
Conference_Titel :
Computer Applications and Communications (SCAC), 2014 IEEE Symposium on
Conference_Location :
Weihai
DOI :
10.1109/SCAC.2014.16
