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A Comparative Study on Two Typical Schemes for Securing Spatial-Temporal Top-k Queries in Two-Tiered Mobile Wireless
Xingpo Ma1, Xingjian Liu2, Junbin Liang3
1School of Computer and Information Technology, Xinyang Normal University, Xinyang 464000, China. maxingpo@xynu.edu.cn.
Sensors (Basel, Switzerland)
|March 16, 2018
Summary
Two-tiered mobile wireless sensor networks (TMWSNs) face security challenges. Current schemes for securing Top-k queries in TMWSNs incur high communication costs, hindering their practical application.
Area of Science:
- Computer Science
- Network Security
- Mobile Computing
Background:
- Two-tiered mobile wireless sensor networks (TMWSNs) offer scalability and robustness.
- Security in TMWSNs, particularly at storage nodes, is a critical but under-researched area.
- Storage nodes are vulnerable and their compromise can lead to widespread data disclosure.
Purpose of the Study:
- To comparatively analyze the security schemes EVTopk and VTMSN for Top-k queries in TMWSNs.
- To identify the disadvantages and advancements of these two typical schemes.
- To investigate the communication overhead associated with current TMWSN security solutions.
Main Methods:
- Theoretical analysis of EVTopk and VTMSN.
- Extensive simulations to evaluate scheme performance.
- Comparative study focusing on communication costs and security aspects.
Main Results:
- Both EVTopk and VTMSN exhibit unsatisfactory communication costs.
- Proof information transmission accounts for over 40% of sensor-to-storage node communication.
- Proof information transmission accounts for over 80% of storage-to-sink node communication.
Conclusions:
- Existing security schemes for Top-k queries in TMWSNs are communication-inefficient.
- High communication overhead poses a significant challenge for the practical deployment of secure TMWSNs.
- Further research is needed to develop more communication-efficient security solutions for TMWSNs.
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