Coordination protocol for inter-operator spectrum sharing in co-primary 5G small cell networks

Bikramjit Singh*, Sofonias Hailu, Konstantinos Koufos, Alexis A. Dowhuszko, Olav Tirkkonen, Riku Jäntti, Randall Berry

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


We consider spectrum sharing between a limited set of operators having similar rights for accessing spectrum. A coordination protocol acting on the level of the RAN is designed. The protocol is non-cooperative, but assumes an agreement to a set of negotiation rules. The signaling overhead is low, and knowledge of a competitor's channel state information is not assumed. No monetary transactions are involved; instead, spectrum sharing is based on a RAN-internal virtual currency. The protocol is applicable both in a scenario of mutual renting and when the operators form a spectrum pool. The protocol reacts to variations in interference and load of operators, and shows gains in a simulated small cell scenario.

Original languageEnglish (US)
Article number7158263
Pages (from-to)34-40
Number of pages7
JournalIEEE Communications Magazine
Issue number7
StatePublished - Jul 1 2015

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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