title: A Type of Low-Latency Data Gathering Method with Multi-Sink for Sensor Networks.
abstract: To balance energy consumption and reduce latency on data transmission in Wireless Sensor Networks (WSNs), a type of low-latency data gathering method with multi-Sink (LDGM for short) is proposed in this paper. The network is divided into several virtual regions consisting of three or less data gathering units and the leader of each region is selected according to its residual energy as well as distance to all of the other nodes. Only the leaders in each region need to communicate with the mobile Sinks which have effectively reduced energy consumption and the end-to-end delay. Moreover, with the help of the sleep scheduling and the sensing radius adjustment strategies, redundancy in network coverage could also be effectively reduced. Simulation results show that LDGM is energy efficient in comparison with MST as well as MWST and its time efficiency on data collection is higher than one Sink based data gathering methods.
authors.affiliation: College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China. shac@njupt.edu.cn.|Provincial Key Laboratory for Computer Information Processing Technology, Soochow University, Suzhou 215006, China. shac@njupt.edu.cn.|Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China. shac@njupt.edu.cn.|Nanjing University of Information Science &amp; Technology, Nanjing 210044, China. shac@njupt.edu.cn.
authors.forename: Chao
authors.initials: C
authors.lastname: Sha
authors.affiliation: College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China. qiujian_m@163.com.
authors.forename: Jian-Mei
authors.initials: JM
authors.lastname: Qiu
authors.affiliation: College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China. lisy_njupt@163.com.|School of Engineering and Computation, New York Institute of Technology, New York 11568-8000, NY, USA. lisy_njupt@163.com.
authors.forename: Shu-Yan
authors.initials: SY
authors.lastname: Li
authors.affiliation: College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China. qiangmy_njupt@163.com.|School of Engineering and Computation, New York Institute of Technology, New York 11568-8000, NY, USA. qiangmy_njupt@163.com.
authors.forename: Meng-Ye
authors.initials: MY
authors.lastname: Qiang
authors.affiliation: College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China. wangrc@njupt.edu.cn.|Provincial Key Laboratory for Computer Information Processing Technology, Soochow University, Suzhou 215006, China. wangrc@njupt.edu.cn.|Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China. wangrc@njupt.edu.cn.
authors.forename: Ru-Chuan
authors.initials: RC
authors.lastname: Wang
keywords: Sensor Networks; balance of energy consumption; low-latency; mobile Sinks; redundancy on network coverage