Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2015, Vol. 38 ›› Issue (5): 18-22.doi: 10.13190/j.jbupt.2015.05.002

• Papers • Previous Articles     Next Articles

Bucket Partition Based Privacy-Preserving Top-k Query Processing in Two-Tiered Wireless Sensor Networks

DAI Hua1,2, HE Rui-liang1, YANG Geng1,2, HUANG Hai-ping1,2   

  1. 1. School of Computer Science and Technology, Nanjing University of Posts and Communications, Nanjing 210023, China;
    2. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Communications), Ministry of Education, Nanjing 210023, China
  • Received:2014-07-23 Online:2015-10-28 Published:2015-10-28

Abstract:

A bucket partition based privacy-preserving top-k query processing (BPTQ) in two-tiered wireless sensor networks was proposed. BPTQ can protect the privacy of sensing data during the storage, communication and query processing by introducing bucket partitioning scheme and encryption technique. Analysis and experiments show that BPTQ can preserve the privacy of the sensing data and query result, and it is more efficient in energy consumption than the existing work.

Key words: two-tiered wireless sensor networks, privacy preserving, top-k query, bucket partition

CLC Number: