Cross-layer approach for asymmetric traffic accommodation in full-duplex wireless network

HASSAN MALIK, Mir Ghoraishi, Rahim Tafazolli

Research output: Chapter in Book/Report/Conference proceedingConference proceeding (ISBN)peer-review

16 Citations (Scopus)
16 Downloads (Pure)


Recent advances in transceiver design demonstrated efficient self-interference (SI) cancellation and full-duplex communication in a single band. The main challenge in the design and deployment of an efficient full-duplex communication is to address the problem of asymmetric data flow in a network with symmetric link capacity. A system with symmetric radio resource allocation, i.e. full-duplex, would under utilize the radio resources when downlink and uplink traffic is asymmetric. Apparently, this is because uplink or downlink may not have traffic to send on the allocated resources which results in under utilization of radio resource. In this paper, we propose a cross-layer model to accommodate asymmetric traffic in full-duplex networks. The proposed model considers the power and rate allocation for the downlink and uplink users based on the observation of the signal-to-interference-plus-noise ratio (SINR) from the physical layer and uplink traffic buffer. Full-duplex transmission characteristics are exploited for maximizing the downlink data rate for asymmetric traffic. Simulation results prove that the proposed model not only accommodate the asymmetric traffic but also improves the overall system throughput while maintaining the quality of service (QoS).
Original languageEnglish
Title of host publication2015 European Conference on Networks and Communications (EuCNC)
ISBN (Electronic)9781467373593
ISBN (Print)9781467373593
Publication statusPublished - 13 Aug 2015
Externally publishedYes
Event2015 European Conference on Networks and Communications - Paris, France
Duration: 29 Jun 20152 Jul 2015

Publication series

Name2015 European Conference on Networks and Communications, EuCNC 2015


Conference2015 European Conference on Networks and Communications


  • Asymmetric traffic
  • cross-layer
  • full-duplex
  • medium access control
  • power allocation
  • rate adaptation


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