Cross-Layer Design to Improve Wireless Protocol for Smart Home Application

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Abbasloo, Sohail | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43984 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Sanaei, Esmaeil
Abstract:
One of the main challenges in the design of wireless sensor networks (WSNs) is minimizing the energy consumption while simultaneously maximizing the performance of sensors. In this thesis, we have considered WSNs based on beacon enabled IEEE 802.15.4/Zigbee Standards with low rate applications like temperature, humidity and light sensing, which mainly have been used in a smart home environment, and proposed a cross-layer design to overcome this challenge. The design involves an optimizer module that captures the application layer and MAC sub layer behaviors. Based on these behaviors, the optimizer dynamically changes the rate of node’s traffic at the application layer and the priority of node’s channel access at the MAC sub layer. Our Ns2 simulations show that using the proposed cross-layer approach, causes a decrease of about 800% in the energy consumption of nodes while simultaneously increases their packet delivery ratio (as a measure of performance) up to 98%
Keywords:
Energy Consumption Optimization ; Wireless Sensor Network ; Smart Home ; Cross Layer Design ; Institiute Electrical and Electronic Engineers (IEEE)802.15.4a Standard ; Zigbee Network

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