원문정보
초록
영어
In scenarios of real-time data collection in long-term deployed Wireless Sensor Networks (WSNs), low-latency data collection and long network lifetime become key issue. We propose a Long-Lifetime and Low-Latency Data Aggregation Scheduling algorithm (L4DAS) in wireless sensor networks. Firstly, we formally formulate the problem of long-lifetime and minimum-latency aggregation scheduling as a constrained optimization problem, and then propose an approximation algorithm for this problem by constructing a degree-bounded minimum height spanning tree as aggregation tree and designing a maximum interference priority scheduling scheme to schedule the transmission of nodes in aggregation tree. Finally, through the simulation and comparisons, we prove the effectiveness of the algorithm.
목차
1. Introduction
2. System Model and Problem Statement
2.1 System Model and Definitions
2.2 Problem Statement
3. Main Design
3.1 Data Aggregation Tree Construction
3.2 Aggregation Scheduling
4. Simulation Results
5. Conclusions and the Future Works
Acknowledgments
References