Minimum Data-Latency-Bound k-Sink Placement Problem in Wireless Sensor Networks
Minimum Data-Latency-Bound k-Sink Placement Problem in Wireless Sensor Networks
复制标题
无线传感器网络中受最小数据延迟限制的 k-Sink 放置问题
DOI:
10.1109/tnet.2011.2109394
复制
发表时间:
2011-10-01
影响因子:
3.7
通讯作者:
Du, Ding-Zhu
中科院分区:
文献类型:
--
作者:
Kim, Donghyun;Wang, Wei;Du, Ding-Zhu
In this paper, we propose a new multiple-sink positioning problem in wireless sensor networks to best support realtime applications. We formally define this problem as the k-Sink Placement Problem (k-SPP) and prove that it is APX-complete. We show that an existing approximation algorithm for the well-known k-center problem is a constant factor approximation of k-SPP. Furthermore, we introduce a new greedy algorithm for k-SPP and prove its approximation ratio is very near to the best achievable, 2. Via simulations, we show our algorithm outperforms its competitor on average.