By Topic

A QoS channel allocation algorithm for multi-hop Dynamic Spectrum Access 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

2 Author(s)
Zhang jian wu ; Telecommun. Dept., Hangzhou Dianzi Univ., Hangzhou, China ; Han Chang

Combined Dynamic Spectrum Access (DSA) with wireless multi-hop networks, a QoS guaranteed multi-hop channel allocation algorithm is proposed. The algorithm could enhance the spectral efficiency of primary users and guarantee the QoS requirements of cognitive users through a specific optimal channel allocation criterion. The multi-hop relay nodes are selected by the upper and lower power thresholds of transmitted nodes, and cognitive users' QoS is measured in terms of channel allocation intervals as well as channel utilization periods in the proposed algorithm. Simulation results indicate that, with the implementation of transmission scheme applied with the proposed QoS guaranteed channel allocation algorithm, the probability of successful transmission for cognitive user could be enhanced significantly in multi-hop network. Meanwhile, the probability of being served within the waiting time for cognitive user is also heightened, as well as the spectrum handoff probability is reduced, which improves the overall quality of service effectively in cognitive radio network.

Published in:

Communication Technology (ICCT), 2010 12th IEEE International Conference on

Date of Conference:

11-14 Nov. 2010