Data Collection Strategy in Low Duty Cycle Wireless Sensor Networks with Mobile Sink

• 作者: Li Xie Xiaofeng Tang
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: WIRELESS SENSOR Networks Low DUTY CYCLE MOBILE SINK
• 年，卷（期）: 2017,（5）
• 页码范围: 227-239
• 页数: 13页
• 分类号: TN92

摘要

The lifetime of wireless sensor networks can be improved by imposing low duty cycle, but doing so could not solve unbalanced energy consumption and will increase transmission latency. To avoid this, this paper gives a new method to collect data by mobile sink. The proper data collection route is selected according to the sink speed and buffer size of the sensors. The sensors only wake up when the sink approaches them. When certain sensors detect an emergency, the sink catches the message quickly and moves to the hotspot to decrease message relay in the network. The result of simulation by OPNET shows that this protocol can reduce transmission data in the network and prolong the network lifetime.