A cross layer routing protocol for cognitive radio networks using channel activity tracking

Sandeep Gogineni, Onur Ozdemir, Engin Masazade, Chilukuri K Mohan, Pramod Kumar Varshney

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We propose a cross-layer routing protocol for cognitive radio (CR) networks, where spectrum sensing, medium access control (MAC) and routing are done simultaneously at each node. First, we propose a sensing scheme using sequential Bayesian estimation where each sensor computes the posterior probability of channel availability for each frequency band. Then, we design a reward metric based on the posterior probability of channel availability and achievable channel capacity. Using this reward metric, the MAC layer selects the channel on which the link between two SUs is established. Finally, in the network layer, we adopt a Best-first-search routing algorithm which selects the node in the direction of the destination to forward the packet. The performance of the proposed scheme is evaluated by calculating the number of successful packet transmissions between a given source - destination pair and the number of collisions with the primary users.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
Pages1079-1083
Number of pages5
DOIs
StatePublished - 2012
Event46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012 - Pacific Grove, CA, United States
Duration: Nov 4 2012Nov 7 2012

Other

Other46th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2012
CountryUnited States
CityPacific Grove, CA
Period11/4/1211/7/12

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Gogineni, S., Ozdemir, O., Masazade, E., Mohan, C. K., & Varshney, P. K. (2012). A cross layer routing protocol for cognitive radio networks using channel activity tracking. In Conference Record - Asilomar Conference on Signals, Systems and Computers (pp. 1079-1083). [6489185] https://doi.org/10.1109/ACSSC.2012.6489185