Title :
Updatable relay selection for distributed EO-STBC cooperative system with ARQ protocol
Author :
Yang, Xianglai ; Bai, Zhiquan ; Xu, Yongjie ; Wang, Li ; Xu, Yuanquan ; Yuan, Dongfeng
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
In this paper, we investigate the closed loop extended orthogonal - space time block codes in decode-and-forward (DF) cooperative networks and propose an updatable Automatic Repeat reQuest (ARQ) protocol including relay selection. The relays correctly decoding the signals are incorporated into the relay set, and if there exist more than 4 relays in this set, we only choose 4 optimal relays based on the channel information. According to the number of the relays in the set, we bring forward a distributed EO-STBC method in the relay transmission to enhance the system performance. Simulation results prove that the proposed scheme can achieve better performance than the best relay and distributed-Alamouti scheme.
Keywords :
automatic repeat request; cooperative communication; decode and forward communication; decoding; orthogonal codes; space-time block codes; ARQ protocol; channel information-based optimal relay; closed loop extended orthogonal-space time block code; decode-and-forward cooperative network; distributed EO-STBC cooperative system; distributed-Alamouti scheme; relay set; signal decoding; updatable automatic repeat request protocol; updatable relay selection; Automatic repeat request; Bit error rate; Cooperative systems; Decoding; Protocols; Relays; Signal to noise ratio; Automatic Repeat reQuest (ARQ); Cooperative communication; extended orthogonal-STBC (EO-STBC);
Conference_Titel :
Communication Technology (ICCT), 2011 IEEE 13th International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-61284-306-3
DOI :
10.1109/ICCT.2011.6157837
