Learning perfect coordination with minimal feedback in wireless multi-access communications

William Zame, Jie Xu, Mihaela Van Der Schaar

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


Coordination is a central problem whenever stations (or nodes or users) share resources across a network. In the absence of coordination, there will be collision, congestion or interference, with concomitant loss of performance. This paper proposes new protocols, which we call perfect coordination (PC) protocols, that solve the coordination problem. PC protocols are completely distributed (requiring neither central control nor the exchange of any control messages), fast (with speeds comparable to those of any existing protocols), fully efficient (achieving perfect coordination, with no collisions and no gaps) and require minimal feedback. PC protocols rely heavily on learning, exploiting the possibility to use both actions and silence as messages and the ability of stations to learn from their own histories while simultaneously enabling the learning of other stations. PC protocols can be formulated as finite automata and implemented using currently existing technology (e.g., wireless cards). Simulations show that, in a variety of deployment scenarios, PC protocols outperform existing state-of-the-art protocols - despite requiring much less feedback.

Original languageEnglish (US)
Title of host publication2013 IEEE Global Communications Conference, GLOBECOM 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Print)9781479913534
StatePublished - Jan 1 2013
Externally publishedYes
Event2013 IEEE Global Communications Conference, GLOBECOM 2013 - Atlanta, GA, United States
Duration: Dec 9 2013Dec 13 2013

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


Other2013 IEEE Global Communications Conference, GLOBECOM 2013
Country/TerritoryUnited States
CityAtlanta, GA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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