Research and Application of Wireless Sensor Networks Link Statistical Characteristics
Yang Shaojun · Jisuanji fangzhen · 2007
The dynamic and lossy nature of wireless sensor networks communication poses major challenges to reliable, self-organizing multi-hop networks designs. Link connectivity statistics should be captured dynamically, and be exploited by routing decisions to achieve reliability. A wireless sensor networks propagation model and a real-time link quality estimation scheme were proposed, and a practical wireless sensor networks simulation platform was designed. By using such platform, a reliable routing protocol called directed diffusion based on link state (LSBDD) was proposed. Simulation results evaluate the performance of the proposed estimation scheme, provide sound evidence for the proposed wireless sensor networks simulation platform, and demonstrate that LSBDD is energy-efficient, reliable and scalable.