Joint On-Demand Routing and Spectrum Assignment in Cognitive Radio Networks

In cognitive radio networks, nodes can work on different frequency bands. Existing routing proposals help nodes select frequency bands without considering the effect of band switching and intra-band backoff. In this paper, We propose a joint interaction between on-demand routing and spectrum schedul...

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Bibliographic Details
Published in2007 IEEE International Conference on Communications pp. 6499 - 6503
Main Authors Geng Cheng, Wei Liu, Yunzhao Li, Wenqing Cheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Analytical models
Chromium
Cognitive radio
Communications Society
Delay
Frequency
Peer to peer computing
Routing
Spread spectrum communication
Switches
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ISBN9781424403530
1424403537
ISSN1550-3607
DOI10.1109/ICC.2007.1075

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Summary:In cognitive radio networks, nodes can work on different frequency bands. Existing routing proposals help nodes select frequency bands without considering the effect of band switching and intra-band backoff. In this paper, We propose a joint interaction between on-demand routing and spectrum scheduling. A node analytical model is proposed to describe the scheduling-based channel assignment progress, which relief the inter-flow interference and frequent switching delay. We also use an on-demand interaction to derive a cumulative delay based routing protocol. Simulation results show that, comparing to other approaches, our protocol provides better adaptability to the multi- flow environment and derives paths with much lower cumulative delay.
ISBN:9781424403530
1424403537
ISSN:1550-3607
DOI:10.1109/ICC.2007.1075