Dynamic Priority Based Reliable Real-Time Communications for Infrastructure-Less Networks

MOHSIN RAZA, Hoa Le-Minh, Nauman Aslam, Sajjad Hussain, Muhammad Ali Imran, Rahim Tafazolli, Huan Nguyen

Research output: Contribution to journalArticle (journal)peer-review

6 Citations (Scopus)
53 Downloads (Pure)


This paper proposes a dynamic priority system at medium access control (MAC) layer to schedule time sensitive and critical communications in infrastructure-less wireless networks. Two schemes, priority enabled MAC (PE-MAC) and optimized PE-MAC are proposed to ensure real-time and reliable data delivery in emergency and feedback systems. These schemes use a dynamic priority mechanism to offer improved network reliability and timely communication for critical nodes. Both schemes offer a notable improvement in comparison to the IEEE 802.15.4e low-latency deterministic networks. To ensure more predictable communication reliability, two reliability centric schemes, quality-ensured scheme (QES) and priority integrated QES, are also proposed. These schemes maintain a pre-specified successful packet delivery rate, hence improving the overall network reliability and guaranteed channel access.
Original languageEnglish
Article number8529181
Pages (from-to)67338 - 67359
Number of pages22
JournalIEEE Access
Publication statusPublished - 9 Nov 2018


  • Medium Access Control
  • priority communications
  • Industrial Wireless Sensor Networks
  • Communication Scheduling
  • Reliability
  • real-time
  • quality of service (QoS)
  • infrastructure less communications
  • machine to machine (m2m)
  • priority
  • MAC
  • ultra-reliable low latency communications (URLLC)
  • Critical communications
  • industrial wireless sensor network (IWSN)


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