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Design and Analysis of a Novel Adaptive Cross-Layer Error Control for Wireless Multimedia Sensor Networks

Naderi, Mohammad Yousof | 2010

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 40688 (52)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Rabiee, Hamid Reza
  7. Abstract:
  8. Wireless sensor network (WSN) multimedia applications impose new challenges in the design of algorithms and communication protocols for sensor networks. Indeed, wireless multimedia sensor networks (WMSNs) must provide relatively high throughput and low end-to-end delay and jitter while being energy-efficient. In view of these challenges, error control is an important mechanism which enables us to provide robust and high quality multimedia communication in WSNs. In this thesis, we first perform a comprehensive performance evaluation of different error control schemes for multimedia communication over WSNs. The results of our analysis show how wireless channel errors can affect the performance of multimedia sensor networks and how different error control scenarios can be effective for such networks. The results also provide the required insights for efficient design of error control protocols in WMSNs. Then we introduce a novel adaptive cross-layer error control for reliable and efficient real-time multimedia streaming in wireless sensor networks. The proposed error control protocol uses an adaptive packet-level forward error correction algorithm in the application layer and a power-loss optimized hybrid FEC/ARQ error control algorithm along an unequal error protection mechanism in wireless link-layer. A comprehensive simulation study shows that the proposed adaptive cross-layer error control protocol achieves better performance in terms of energy efficiency, frame peak signal-to-noise ratio (PSNR), and delay-constrained PSNR for real-time multimedia streaming over sensor networks.
  9. Keywords:
  10. Wireless Sensor Network ; Adaptation ; Error Control Mechanism ; Cross Layer Design ; Multimedia Networks

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