New Protocols for Wireless Networks
Speakers: Mohammad S. Obaidat
Topic(s): Application Oriented Computing,Data Communication,Mobile Ad Hoc Networking,Mobile Computing,Sensor Networking,Simulation & Modeling
Abstract
This talk presents some of our recent research results including new protocols for wireless networks. Among these, an adaptive MAC protocol for distributed wireless LANs that is capable of operating efficiently under bursty traffic conditions. According to the proposed protocol, the mobile station that is granted permission to transmit is selected by means of a neural-based algorithm. Another new protocol for dynamically setting 802.11 wireless LAN waveforms and transmission power levels based on the wireless channel's signal to noise ratio will be introduced. Our method, known as Signal-to-Noise Ratio-Waveform Power Adaptation (SNR-WPA), changes the power in discrete steps matched to each of the 802.11 data rate-waveform steps. By matching the power to the spreading symbol rate, our technique maximizes the network throughput while minimizing MAC layer contention. We found through experimentation that the power adaptation in SNR-WPA yields up to a 30% increase in throughput in a mobile wireless LAN network. Other related wireless research efforts by our group will be presented. We will also shed some light on the main challenges in wireless networks and systems.
About this Lecture
Duration: 60 minutes
Languages Available: English
Last Updated: 09-12-2007
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