An Energy-Efficient MAC Protocol Using Dynamic Queue Management for Delay-Tolerant Mobile Sensor Networks
| 作者： | Jie Li, Qiyue Li, Yugui Qu, Baohua Zhao |
| 作者单位： |
1Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, Anhui 230027, China 2Department of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China |
| 刊名： | Sensors, 2011, Vol.11 (2), pp.1847-1864 |
| 来源数据库： | Multidisciplinary Digital Publishing Institute |
| DOI： | 10.3390/s110201847 |
| 关键词： | delay-tolerant mobile sensor networks; minimal probe frame; Wait to Send; Ready to Receive; queue management; priority; medium access control; |
| 原始语种摘要： | Conventional MAC protocols for wireless sensor network perform poorly when faced with a delay-tolerant mobile network environment. Characterized by a highly dynamic and sparse topology, poor network connectivity as well as data delay-tolerance, delay-tolerant mobile sensor networks exacerbate the severe power constraints and memory limitations of nodes. This paper proposes an energy-efficient MAC protocol using dynamic queue management (EQ-MAC) for power saving and data queue management. Via data transfers initiated by the target sink and the use of a dynamic queue management strategy based on priority, EQ-MAC effectively avoids untargeted transfers, increases the chance of successful data transmission, and makes useful data reach the target terminal in a timely manner. Experimental... |
