By Topic

Impact of Spectrum Allocation on Connectivity of Cognitive Radio Ad-Hoc Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Yun Li ; Key Lab. of Mobile Commun. Technol., Chongqing Univ. of Post & Telecommun., Chongqing, China ; Zhi Wang ; Bin Cao ; Wei Huang

The essence of spectrum allocation is to find an appropriate distribution of spectrum bands among users so that they can coexist. Thus, spectrum allocation can avoid interference that caused by two interference SUs using the same channel. Different spectrum allocation can lead to different network topologies and consequently have effect on the network connectivity. The aim of this paper is twofold: 1) based on the Laplacian spectrum of graphs, we represent the cognitive radio Ad-Hoc network connectivity with knowledge of the effects of the different labeling rules of spectrum allocation; 2) we give a deep analysis of the network connectivity and the impact that different parameters have on it. The results show that the different labeling rules of Color-Sensitive Graph Coloring have different influence on the network connectivity. For the different labeling rules of Color-Sensitive Graph Coloring, we can obtain the different relationship between the probability of primary users' activity and the network connectivity.

Published in:

Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE

Date of Conference:

5-9 Dec. 2011