On optimization algorithms for the design of multiband cognitive radio networks

Ankita Panwar, Piyush Bhardwaj, Onur Ozdemir, Engin Masazade, Chilukuri K. Mohan, Pramod K. Varshney, Andrew L. Drozd

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

4 Scopus citations

Abstract

We consider the problem of joint admission control and power allocation in a multiband cognitive radio network (CRN) coexisting with multiple narrowband primary systems, and investigate two separate optimization problems: i) sum-rate maximization under primary user (PU) and secondary user (SU) quality of service (QoS) constraints; ii) sum-rate maximization and power minimization under PU and SU QoS constraints. We first show that these problems are NP-hard. Then we propose three different suboptimal algorithms for the first problem based on convex relaxation with tree pruning (CRTP), convex relaxation with gradual removal (CRGR) and genetic algorithms (GA). These algorithms offer different tradeoffs in terms of goodness of their solutions and computational complexity. For the second problem, we propose a multiobjective evolutionary algorithm which can generate a Pareto front in a time-efficient manner. Simulation results are provided to evaluate the proposed algorithms.

Original languageEnglish (US)
Title of host publication2012 46th Annual Conference on Information Sciences and Systems, CISS 2012
DOIs
StatePublished - Nov 12 2012
Event2012 46th Annual Conference on Information Sciences and Systems, CISS 2012 - Princeton, NJ, United States
Duration: Mar 21 2012Mar 23 2012

Publication series

Name2012 46th Annual Conference on Information Sciences and Systems, CISS 2012

Other

Other2012 46th Annual Conference on Information Sciences and Systems, CISS 2012
CountryUnited States
CityPrinceton, NJ
Period3/21/123/23/12

Keywords

  • Cognitive radio networks
  • optimization algorithms
  • resource allocation

ASJC Scopus subject areas

  • Information Systems

Fingerprint Dive into the research topics of 'On optimization algorithms for the design of multiband cognitive radio networks'. Together they form a unique fingerprint.

  • Cite this

    Panwar, A., Bhardwaj, P., Ozdemir, O., Masazade, E., Mohan, C. K., Varshney, P. K., & Drozd, A. L. (2012). On optimization algorithms for the design of multiband cognitive radio networks. In 2012 46th Annual Conference on Information Sciences and Systems, CISS 2012 [6310830] (2012 46th Annual Conference on Information Sciences and Systems, CISS 2012). https://doi.org/10.1109/CISS.2012.6310830