Minimum data-latency-bound κ-sink placement problem in wireless sensor networks

Donghyun Kim; Wei Wang; Nassim Sohaee; Changcun Ma; Weili Wu; Wonjun Lee; Ding Zhu Du

doi:10.1109/TNET.2011.2109394

Minimum data-latency-bound κ-sink placement problem in wireless sensor networks

Donghyun Kim, Wei Wang, Nassim Sohaee, Changcun Ma, Weili Wu, Wonjun Lee, Ding Zhu Du

Graduate School of Information Study

Research output: Contribution to journal › Article

31 Citations (Scopus)

Abstract

In this paper, we propose a new multiple-sink positioning problem in wireless sensor networks to best support real-time applications. We formally define this problem as the κ-Sink Placement Problem (κ-SPP) and prove that it is APX-complete. We show that an existing approximation algorithm for the well-known κ-center problem is a constant factor approximation of κ-SPP. Furthermore, we introduce a new greedy algorithm for κ-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.

Original language	English
Article number	5720275
Pages (from-to)	1344-1353
Number of pages	10
Journal	IEEE/ACM Transactions on Networking
Volume	19
Issue number	5
DOIs	https://doi.org/10.1109/TNET.2011.2109394
Publication status	Published - 2011 Oct

Keywords

Graph theory
greedy approximation algorithms
network center placement problem
wireless sensor networks (WSNs)

ASJC Scopus subject areas

Software
Computer Science Applications
Computer Networks and Communications
Electrical and Electronic Engineering

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Cite this

Kim, D., Wang, W., Sohaee, N., Ma, C., Wu, W., Lee, W., & Du, D. Z. (2011). Minimum data-latency-bound κ-sink placement problem in wireless sensor networks. IEEE/ACM Transactions on Networking, 19(5), 1344-1353. [5720275]. https://doi.org/10.1109/TNET.2011.2109394

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