A Rate Control Mechanism for Wireless Multimedia Sensor Networks

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Hosseini, Bahareh | 2012

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Type of Document: M.Sc. Thesis
Language: English
Document No: 42845 (52)
University: Sharif University of Technology, International Campus, Kish Island
Department: Science and Engineering
Advisor(s): Khansari, Mohammad; Akbari, Behzad
Abstract:
To make Wireless Multimedia Sensor Networks (WMSNs) more practical, researchers have tried to meet its challenges in the last decade. Some factors of WMSNs, such as low bandwidth and channel errors, cause a decrease in the video quality that is declared as distortion. On the other hand, one important requirement in the context of multimedia streaming is its quality. In this thesis, we first introduce and use an adaptive cross-layer error control in the link layer, and then we implement a new cross-layer source rate control Mechanism for efficient and reliable real-time multimedia streaming in wireless sensor networks. Our main objective is to minimize distortion. Some of the used cross-layer information to find the source of distortion and the channel state includes the channel bit error rate, the Round Trip Time (RTT), and wireless traffic load provided by the network Layer.
Keywords:
Wireless Sensor Network ; Rate Control ; Waviness ; Multimedia Communication

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