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中文摘要：
对无线传感器网络隐私保护范围查询处理技术的研究现状与进展进行了综述．首先介绍研究模型，包括网络模型、攻击模型和性能评价模型．接着，按照桶技术、前缀成员验证技术、保序加密技术等隐私保护技术对现有研究成果进行分类，详细阐述代表性协议的核心技术．对各协议性能的分析比较表明：现有技术均未较好地实现隐私性、完整性、高效性和精确性四者之间的均衡．最后，对未来研究方向进行了展望．
英文摘要：
This paper provides a state-of-the-art survey of privacy-preserving range query processing techniques in Wireless Sensor Networks （WSNs）. We first introduce the research models, including network models, adversary models and performance evaluation models. Then, we classify existing related work into several types according to privacy preservation techniques, such as Bucketing Scheme, Prefix Membership Verification, and Order-preserving Encryption. We further elaborate the key mechanisms of typical protocols. Performance analysis and comparison show that existing work cannot balance privacy, integrity, efficiency and accuracy. Finally, we provide some suggestions for future research.
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