Minimax games for cooperative spectrum sensing in a centralized cognitive radio network in the presence of interferers

V. Sriram Siddhardh Nadendla, Hao Chen, Pramod K. Varshney

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

3 Scopus citations

Abstract

In this paper, we consider the problem of interferers for cooperative spectrum sensing in a centralized cognitive radio network comprising N cognitive radios (CRs) and one fusion center (FC) in the presence of a fixed interferer. The design metric chosen is the error probability. We prove the existence of a saddle-point in the minimax game between the interferer and the CR network. An optimal solution is found that maximizes the objective with respect to the interferer's parameters and minimizes the same with respect to the CR network's parameters. We show that the probability of error is a quasi-convex function with respect to the network's parameters and a monotone function with respect to the interferer's parameters. We also present numerical results that corroborate our theoretical results.

Original languageEnglish (US)
Title of host publication2010 Military Communications Conference, MILCOM 2010
Pages1256-1260
Number of pages5
DOIs
StatePublished - 2011
Event2011 IEEE Military Communications Conference, MILCOM 2011 - Baltimore, MD, United States
Duration: Nov 7 2011Nov 10 2011

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

Other2011 IEEE Military Communications Conference, MILCOM 2011
CountryUnited States
CityBaltimore, MD
Period11/7/1111/10/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Nadendla, V. S. S., Chen, H., & Varshney, P. K. (2011). Minimax games for cooperative spectrum sensing in a centralized cognitive radio network in the presence of interferers. In 2010 Military Communications Conference, MILCOM 2010 (pp. 1256-1260). [6127473] (Proceedings - IEEE Military Communications Conference MILCOM). https://doi.org/10.1109/MILCOM.2011.6127473