A Real-Time Empirical Study of BIOSARP based Wireless Sensor Network Testbed
Baharudin, M. Ariff . 2012
Wireless sensor network (WSN) deploys tiny wireless sensor nodes to communicate with each other with limited processing speed, power and security measures. A recent WSN routing protocol defined as Secure Real-Time Load Distribution (SRTLD) has been developed to provide realtime transfer, high delivery ratio, and longer sensor node lifetime. However, SRTLD uses broadcast packets to perform neighbor discovery for every packet transfer every hop, thus consume high energy. The proposed novel Biological inspired Self-Organized Secure Autonomous Routing Protocol (BIOSARP) enhances SRTLD with autonomous routing mechanism. The BIOSARP routing protocol depends on the optimal forwarding decision obtained by Ant Colony Optimization (ACO). The pheromone value in ACO is computed based on end-to-end delay, remaining battery power, and packet reception rate metrics similar to SRTLD. The proposed BIOSARP has been designed to reduce overhead broadcast packet in order to minimize the delay, packet loss and power consumption in WSN. In this paper we present the architecture and detailed real outdoor experimental testbed results of BIOSARP. The experimental testbed results show that BIOSARP outperforms SRTLD by 24.75% in terms of delivery ratio. The empirical study confirms that BIOSARP offers better performance than SRTLD and can be practically implemented in WSN applications as structural and environmental monitoring, battlefield surveillance.
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