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Enhanced Multimedia and Real-Time Stream Throughput in Wireless Ad-Hoc LAN Using Distributed Virtual Channel Based MAC

  • Md. Mustafizur Rahman
  • Choong Seon Hong
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4267)

Abstract

Recent and upcoming CSMA/CA based MAC protocols for wireless LANs offer block-acknowledgement or aggregated frame exchange in order to provide high data rate for multimedia and real-time data, while all of them avoid collisions by exclusive use of wireless medium that block neighboring nodes of both sender and receiver from participating in concurrent transmission; and thus downgrade medium utilization and overall throughput. In this work, we offer to create concurrent virtual channels over same physical channel by synchronizing the transmit/receive switching of senders and receivers and allow parallel data transfer. Each virtual channel is used by a transmitter/receiver pair and all virtual channels within 2-hop network utilize the medium by distributed coordination and avoid inter virtual channel interference. Simulation result shows that proposed scheme removes the obstruction to participate in parallel transmission for some neighboring nodes of sender and receiver and improves the network performance.

Keywords

Medium Access Control Medium Access Control Protocol Medium Access Control Layer Virtual Channel Data Window 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© IFIP International Federation for Information Processing 2006

Authors and Affiliations

  • Md. Mustafizur Rahman
    • 1
  • Choong Seon Hong
    • 1
  1. 1.Department of Computer EngineeringKyung Hee UniversitySouth Korea

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