Title :
ARQ Protocols for Two-Way Relay Systems
Author :
Chen, Zhenyuan ; Zhang, Chao ; Zhang, Jun ; Wei, Guo
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
Automatic repeat-request(ARQ) protocols for two-way relay systems, where two terminals communicating via a relay node, are investigated in this paper. According to different feedback schedules, we propose three basic ARQ protocols to improve the link reliability for two-way relay systems, namely Relay-only ARQ (Ro-ARQ), Terminal-only ARQ (To-ARQ) and Relay-Terminal ARQ (RT-ARQ). In addition, simulation results show that all the proposed protocols can improve the throughput. The RT-ARQ protocol has a better performance than the others and the joint decoding capability at the relay has significant impact on the data link layer performance in two-way relay systems.
Keywords :
automatic repeat request; decoding; feedback; protocols; radio links; scheduling; telecommunication network reliability; ARQ protocols; Ro-ARQ; To-ARQ; automatic repeat-request protocols; data link layer performance; feedback schedules; joint decoding capability; link reliability; relay node; relay-only ARQ; relay-terminal ARQ; terminal-only ARQ; two-way relay systems; Automatic repeat request; Feeds; Network coding; Protocols; Relays; Signal to noise ratio; Throughput;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601114
