DocumentCode
2775498
Title
Diversity and Delay-Limited Throughput Analysis for the Effective Cooperative ARQ Protocols with Opportunistic Distributed Space-Time Coding
Author
Chiu, Hsin-Li ; Wu, Sau-Hsuan ; Li, Jin-Hao
fYear
2010
fDate
16-19 May 2010
Firstpage
1
Lastpage
6
Abstract
The paper investigates effective protocols and the corresponding performance for cooperative automatic retransmission request (ARQ) that uses the decode-and-forward (DF) opportunistic distributed space-time coding (ODSTC). According to the analysis, the delay-limited throughput enjoys significant enhancement even using one or two active relays only for ARQs than using direct retransmissions. Besides, allowing the non-active relays to overhear the DSTC signal sent by active relays during ARQs also leads to a better throughput via ODSTC. Nevertheless, in the high or the low SNR regimes, simple schemes without overhearing may provide almost the same performance offered by a scheme with overhearing despite the much inferior diversities. These features may be further explored to enhance the overall system throughput for multiple access systems using only limited system resources.
Keywords
Automatic repeat request; Broadcasting; Decoding; Delay effects; Performance analysis; Protocols; Relays; Signal analysis; Throughput; Wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st
Conference_Location
Taipei, Taiwan
ISSN
1550-2252
Print_ISBN
978-1-4244-2518-1
Electronic_ISBN
1550-2252
Type
conf
DOI
10.1109/VETECS.2010.5494060
Filename
5494060
Link To Document