Differential sensing in cognitive personal area networks with bursty secondary traffic and varying primary activity factor

Authors:
Jelena Misic;Vojislav B. Misic
Affiliations:
University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.;University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
Venue:
International Journal of Autonomous and Adaptive Communications Systems
Year:
2009

Citing 3
Cited 1

NeXt generation/dynamic spectrum access/cognitive radio wireless networks: a survey

Computer Networks: The International Journal of Computer and Telecommunications Networking
COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Frequency Hopping Communities for Efficient IEEE 802.22 Operation

IEEE Communications Magazine
What and how much to gain by spectrum agility?

IEEE Journal on Selected Areas in Communications

Dynamic parameter adjustment in a cognitive MAC protocol with transmission tax

International Journal of Autonomous and Adaptive Communications Systems

Quantified Score

Hi-index	0.00

Visualization

Abstract

Cognitive radio technology necessitates accurate and timely sensing of primary users' activity on the chosen set of channels. We assume that the number of sensing nodes is smaller than the number of channels; the results of sensing are cooperatively combined to form a coherent channel map. Since each secondary user has its own bursty data traffic, it is unavailable for sensing until that data is transmitted. Furthermore, we assume that idle channels ought to be sensed more frequently than the active ones, so that the end of transmission opportunities are sensed with greater accuracy. The article presents a probabilistic analysis of the sensing mechanism under these circumstances, and investigates the range of parameter values in which the sensing process is capable of maintaining an accurate view of the status of the working channel set.