Title :
Efficient network coding transmission in 2-hop multi-channel cognitive radio networks
Author :
Zheng, Changliang ; Dutkiewicz, Eryk ; Liu, Ren Ping ; Vesilo, Rein ; Zhou, Zheng
Author_Institution :
Dept. of Electron. Eng., Macquarie Univ., Sydney, NSW, Australia
Abstract :
In cognitive radio networks (CRNs), there is no guarantee on the availability of spectrum for the opportunistic communications between cognitive radio (CR) users. Transmission design plays a key role in leveraging the benefits of CRNs. In this paper, we propose an efficient batch transmission scheme for the data transmission in multi-channel CRNs with practical lossy channels. The proposed scheme exploits the dynamic spectrum opportunities by combining opportunistic routing strategy with network coding based multi-channel transmission. We derive network performance measures of the scheme in terms of batch delay, which provide better insights into the data transmission capability than packet based link delay analysis. Our analyses, validated by simulations, show that the proposed scheme significantly outperforms others, reducing batch delay by up to 60%.
Keywords :
cognitive radio; data communication; network coding; radio spectrum management; telecommunication network routing; wireless channels; 2-hop multichannel cognitive radio networks; CR users; data transmission; dynamic spectrum opportunities; efficient batch transmission scheme; efficient network coding transmission; lossy channels; multichannel CRN; multichannel transmission; network performance; opportunistic communications; opportunistic routing strategy; packet based link delay analysis; Availability; Data communication; Delay; Network coding; Relays; Routing;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2012 International Symposium on
Conference_Location :
Gold Coast, QLD
Print_ISBN :
978-1-4673-1156-4
Electronic_ISBN :
978-1-4673-1155-7
DOI :
10.1109/ISCIT.2012.6380965
