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Long Lifetime Multipath Routing in Unreliable Wireless Multimedia Sensor Networks

Nikseresht, Ilnaz | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 42876 (52)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Movaghar Rahimabadi, Ali; Mehri, Bahman
  7. Abstract:
  8. Most of the current routing protocols in the WMSNs only consider the inter-path interference and not necessarily intra-path interference factor which is considered as one of the main causes of energy consumption in these networks. Among those protocols that consider this factor, none of them has ever come up with an algorithm capable of performing the routing without the need to use either the special hardware in the nodes (referred to as the GPS or directional antennas) or with the unrealistic assumption that the interference range is equal to the transmission range. The previously mentioned factors are critical in the sense that the former assumption results in more expensive sensor nodes and the latter one does not minimize the interference and still could leave us with energy consumption as well as interference. In this dissertation an efficient interference-aware multipath routing protocol has been proposed. In this protocol there are two main assumptions that consist of not using any special hardware in any node of the network as well as the one which specifies that the interference range is twice the transmission range. Additionally, the proposed protocol aims to route the higher-priority frames of each video stream from the shortest path which has been reserved for the I frames that are concerned to be the most important frames of each video stream in the frames dependability sense and dedicate the other longer path to the remaining frames, P and B, namely. The simulation results show that our protocol IAMVD (Interference Aware Multipath Video Delivery) protocol outperforms a similar approach called IAMR in terms of delay and energy consumption.
  9. Keywords:
  10. Wireless Sensor Network ; Network Lifetime ; Real Time Communication ; Multipath Routing ; Network Layer

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