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Analyzing the Interplay of Power Management and Communication Reliability of Wireless Networks in Embedded Applications

Hosseini, Elahe Sadat | 2008

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 39032 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Ejlali, Alireza
  7. Abstract:
  8. Due to safety critical applications of the embedded systems, reliability is one of the most important properties of these systems. Wireless networks also have error prone data transmission channels and limited power consumption. Therefore reliability and power conservation are two vital characteristics of the wireless network especially in embedded applications. Since achieving to a desirable level of data reliability is power consuming, we must consider a trade-off between power consumption and data reliability. In wireless networks power consumption can be categorized into: power consumption in wireless devices and power consumption in data transmission. For decrement of wireless devices power consumption, some operational modes are considered for network devices in desirable times and the network is organized hierarchically. For decrement of data transmission power consumption, whereas connectivity and other desirable properties of the network are preserved, the wireless devices transmission range is set. This operation is named topology control that causes to power consumption reduction and reliability increment. In this thesis, an ad-hoc network with a connected dominating set backbone that is the best representative of hierarchical topology is considered. To achieving an optimized trade-off between power consumption and data reliability, a topology control mechanism is proposed on this structure
  9. Keywords:
  10. Power Management ; Topology Control ; Ad Hoc Network ; Interference ; Embedded System ; Reliability

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