Random Access with Opportunity Detection in Wireless Networks

Jinho Choi, Seung Woo Ko, Koji Yamamoto, Seong Lyun Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This letter proposes a novel random medium access control (MAC) based on a transmission opportunity prediction, which can be measured in a form of a conditional success probability given transmitter-side interference. A transmission probability depends on the opportunity prediction, preventing indiscriminate transmissions, and reducing excessive interference causing collisions. Using stochastic geometry, we derive a fixed-point equation to provide the optimal transmission probability maximizing a proportionally fair throughput. Its approximated solution is given in closed form. The proposed MAC is applicable to full-duplex networks, leading to significant throughput improvement by allowing more nodes to transmit.

Original languageEnglish
Article number8732366
Pages (from-to)1440-1443
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number5
Publication statusPublished - 2019 Oct

Bibliographical note

Publisher Copyright:
© 2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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