Zhezhuang Xu

Publications (5)0 Total impact

• Source

  Available from: edu.cn

  Conference Proceeding: Spatial correlated data collection in wireless sensor networks with multiple sinks

  Bin Cheng, Zhezhuang Xu, Cailian Chen, Xinping Guan
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  ABSTRACT: Due to the high density of node deployment in wireless sensor network, the sensing data of nodes in spatially proximate locations are highly correlated. By effectively exploiting this spatial correlation in the data collection process, unnecessary energy costs for redundant data transmission can be largely reduced. In this paper, we focus on collecting spatial correlated data in multi-sink scenario. The main challenge in this scenario is that data collection process should consider how to exploit the spatial correlation and decide which sink the data are transmitted to at the same time. To address this challenge, we propose an algorithm to select a subset of sensor nodes to represent the whole multi-sink sensor network based on the spatial correlated sensing readings. In this algorithm, only these representatives named sources need to upload their data to the chosen sinks. The problem is firstly formulated as a Binary Integer Linear Programming (BILP). Since the problem is proved to be NP-Complete, two heuristic algorithms are designed for approximation. The simulation results show that the proposed algorithms can largely reduce the number of the sources and then significantly improve energy efficiency.
  Computer Communications Workshops (INFOCOM WKSHPS), 2011 IEEE Conference on; 05/2011
• Article: Ballooning: An Agent-Based Search Strategy in Wireless Sensor and Actor Networks.

  Zhezhuang Xu, Cailian Chen, Yi Guo, Xinping Guan
  IEEE Communications Letters. 01/2011; 15:944-946.
• Article: DGR: dynamic gradient-based routing protocol for unbalanced and persistent data transmission in wireless sensor and actor networks.

  Yi Guo, Zhezhuang Xu, Cailian Chen, Xinping Guan
  Journal of Zhejiang University - Science C. 01/2011; 12:273-279.
• Conference Proceeding: Wireless sensor networks based localization for audio-source: A GCC-GA method.

  Bo Cheng, Cailian Chen, Zhezhuang Xu, Haoran Li, Xinping Guan
  11th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WOWMOM 2010, Montreal, QC, Canada, 14-17 June, 2010; 01/2010
• Conference Proceeding: Hybrid Clustering and Routing Strategy with Low Overhead for Wireless Sensor Networks.

  Zhezhuang Xu, Chengnian Long, Cailian Chen, Xinping Guan
  Proceedings of IEEE International Conference on Communications, ICC 2010, Cape Town, South Africa, 23-27 May 2010; 01/2010