Backoff algorithm in cognitive radio MAC protocol for throughput enhancement

Shweta Pandit, Ghanshyam Singh

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

In this paper, we have explored a novel concept of the medium access control (MAC) protocol for the distributed cognitive radio network. We have implemented the backoff algorithm in the self-scheduled multichannel cognitive radio MAC (SMC-MAC) protocol for the contention solving among the cognitive users and, hence, reserve the licensed channels for data transmission. In this control channel protocol, the cognitive users share the sensing results with each other, and each channel is divided into four intervals such as idle, sensing-sharing, contention, and data transmission. However, the backoff algorithm has been implemented during the contention interval to enhance the number of successful users and, hence, has increased the throughput of cognitive radio network. The backoff algorithm has significantly minimized the competition and, hence, collision among the cognitive users while reserving the unutilized licensed channels.

Original languageEnglish
Article number6856203
Pages (from-to)1991-2000
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume64
Issue number5
DOIs
Publication statusPublished - 1 May 2015
Externally publishedYes

Keywords

  • Backoff algorithm
  • cognitive radio
  • contention
  • medium access control (MAC) protocol
  • self-scheduled
  • sensing and sharing
  • throughput

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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