Analysis on data collection with multiple mobile elements in wireless sensor networks

作者：He Liang^*; Pan Jianping; Xu Jingdong

来源：54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 , 2011-12-05 to 2011-12-09.

DOI：10.1109/GLOCOM.2011.6134391

• Data collection
• Extensive simulations
• M/G/c queue
• Mobile elements
• Modeling and analysis
• Optimal number
• Performance evaluation
• Potential problems
• Queuing systems
• Research efforts
• Travel speed
• Wireless sensor

Exploiting mobile elements to conduct data collection in wireless sensor networks offers a new approach to reducing and balancing the energy consumption of sensor nodes; however, the resultant data collection latency may be large due to the limited travel speed. Many research efforts have been made on reducing the data collection latency with the scenario where a single mobile element is available. A potential problem with this scenario is the scalability, and a straightforward solution is to employ multiple mobile elements to collect data collaboratively. In this paper, the network where multiple homogeneous mobile elements are available is modeled as an M/G/c queuing system, and insights on the data collection performance are obtained through theoretically analyzing the measures of the queue. In addition, a heuristic formula to determine the optimal number of mobile elements is proposed based on this model. The accuracy of our modeling and analysis, along with the performance evaluation of the proposed heuristic formula, is verified through extensive simulation.

• 出版日期2011
• 单位南开大学