A Decentralized Approach for Self-Coexistence among Heterogeneous Networks in TVWS

Hena Maloku, Enver Hamiti, Zana Limani Fazliu, Vicky Papadopoulou Lesta, Andreas Pitsillides, Muttukrishnan Rajarajan

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper focuses on coexistence and self-coexistence challenges between secondary heterogeneous wireless networks/users sharing TV Whitespace spectrum. The coexistence problems arise from having several primary and secondary networks of different technologies cohabiting the same licensed spectrum simultaneously. The self-coexistence problems arise from many secondary systems /users coexisting at the same place while using identical or different technologies. In particular, fair distribution of available spectrum becomes a serious issue. In this paper, we use a game theoretic approach to model the self-coexistence problem as a competitive game between secondary networks. We show that our game belongs to the class of congestion-averse games which are known to possess pure Nash equilibria. This leads us to a decentralized approach for spectrum sharing among systems with different PHY/MAC characteristics. We show that our proposal outperforms other centralized algorithms in terms of user fairness and per-user theoretical data rates.

Original languageEnglish
Pages (from-to)1302-1312
Number of pages11
JournalIEEE Transactions on Vehicular Technology
Issue number2
Publication statusPublished - Feb 2018
Externally publishedYes


  • Cognitive radio
  • congestion-averse games
  • self-coexistence

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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