Abstract | ||
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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 |
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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 Maharjan | 1 | 1078 | 52.89 |
Jie Xiang | 2 | 170 | 11.18 |
Yan Zhang | 3 | 5818 | 354.13 |
Stein Gjessing | 4 | 1182 | 99.28 |