Paper Info
Title
Accumulative Interference Modeling for Cognitive Radios with Distributed Channel Access
Abstract
A cognitive radio (CR) network should be able to sense its environment and adapt its communication to utilize unused licensed spectrum without interfering with incumbents. Properly modeling the expected interference from the CR network is therefore very important in the definition of coexistence rules to efficiently protect the incumbents. In this paper we model the accumulative interference generated from a large-scale CR network and investigate how this affects the sensing requirements of the CRs to meet an interference constraint. More specifically, our model considers the impact of discrete topology and the impact of the distributed channel access scheme. As an instantiation of our model, we consider a CR network based on the IEEE 802.11 standard. We show that the interference generated is large, since collisions cannot be avoided.
Year
DOI
Venue
2008
10.1109/CROWNCOM.2008.4562479
Singapore
Keywords
Field
DocType
cognitive radio,radiofrequency interference,telecommunication network topology,wireless LAN,wireless channels,IEEE 802.11 standard,accumulative interference modeling,cognitive radio network,collision avoidance,distributed channel access scheme,network topology
Computer science,Signal-to-noise ratio,Communication channel,Computer network,Network topology,Acceleration,Interference (wave propagation),Licensed spectrum,Discrete space,Cognitive radio
Conference
ISBN
Citations 
PageRank 
978-1-4244-2302-6
17
1.47
References 
Authors
2
4
Name
Order
Citations
PageRank
Timmers, M.1181.83
Sofie Pollin21041113.94
Dejonghe, A.3936.87
Ahmad Bahai460265.90