Title
Delay reduction for real time services in IEEE 802.22 Wireless Regional Area Network
Abstract
Real time traffic such as voice and video have strict requirements on the acceptable end-to-end packet delay. When there are different types of traffic with different requirements on tolerable latency, priority based packet scheduling schemes are normally used in order to reduce the queuing delay for real time services. However, in cognitive radio networks, the time that the system spends on spectrum sensing adds further delay to the packet transmission. In this paper, we propose a new scheme to significantly reduce the overall packet delay, including the delay due to sensing for real time services in cognitive radio networks. We derive the expression for average packet delay for the proposed scheme and the simulation results match well with the analytical results. The numerical results show that the priority based scheduling scheme combined with our scheme substantially reduces the packet delay for real time applications.
Year
DOI
Venue
2010
10.1109/PIMRC.2010.5671631
Personal Indoor and Mobile Radio Communications
Keywords
Field
DocType
cognitive radio,telecommunication standards,telecommunication traffic,wireless LAN,wireless mesh networks,IEEE 802.22 wireless regional area network,cognitive radio networks,delay reduction,overall packet delay,priority based scheduling scheme,real time services
End-to-end delay,Network delay,Computer science,Queuing delay,Transmission delay,Network packet,Computer network,Real-time computing,Round-trip delay time,Processing delay,Cognitive radio
Conference
ISBN
Citations 
PageRank 
978-1-4244-8017-3
1
0.34
References 
Authors
4
4
Name
Order
Citations
PageRank
Sabita Maharjan1107852.89
Jie Xiang217011.18
Yan Zhang35818354.13
Stein Gjessing4118299.28