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Data aggregation is an important method to reduce the energy consumption in wireless sensor networks (WSNs), however, performing data aggregation while preserving data confidentiality and integrity is mounting a challenge. The existing solutions either have large communication and computation overheads or produce inaccurate results. This paper proposes a novel secure data aggregation scheme based...
Distributed wireless sensor network technologies have become one of the major research areas in healthcare industries due to rapid maturity in improving the quality of life. Medical Wireless Sensor Network (MWSN) via continuous monitoring of vital health parameters over a long period of time can enable physicians to make more accurate diagnosis and provide better treatment. The MWSNs provide the options...
Wireless Sensor Networks (WSN) have attracted much interest in the last decade. It opened a new range of applications such as large area monitoring including environmental monitoring, wildlife exploration, and real time patient medical data which is collected by using wireless sensors. The WSN provides the options of flexibilities and cost saving for patients and healthcare industries. At the same...
Several security mechanisms have been introduced to address the need for reliable and efficient security schemes in resource limited Wireless Sensor Networks (WSNs). Limitations in processing speed, battery power, bandwidth and memory constrain the applicability of existing cryptographic Algorithms in WSNs. Accordingly, it is necessary to assess the performance tradeoffs of the cryptographic algorithms...
Recently, several data aggregation schemes based on privacy homomorphism encryption have been proposed and investigated on wireless sensor networks. These data aggregation schemes provide better security compared with traditional aggregation since cluster heads (aggregator) can directly aggregate the ciphertexts without decryption; consequently, transmission overhead is reduced. Based on our survey...
Wireless sensor networks (WSNs) often consists of a large number of low-cost sensor nodes that have strictly limited sensing, computation, and communication capabilities. Due to these unique specifications and a lack of tamper-resistant hardware, devising security protocols for WSNs is complex. Previous studies show that data transmission consumes much more energy than computation. Data aggregation...
In-network data aggregation is an effective method to reduce the amount of data transmitted and therefore saves energy consumption in sensor networks. However, an adversary may compromise some sensor nodes, and use them to forge false values as the aggregation result. Previous secure data aggregation schemes have tackled this problem from different angles. The goal of those algorithms is to ensure...
With the widespread growth in applications for resource limited Wireless Sensor Networks (WSN), the need for reliable and efficient security mechanisms for them has increased manifold but its implementation is a non-trivial task. Limitations in processing speed, battery power, bandwidth and memory constrain the applicability of existing cryptography Algorithms for WSNs. Several security mechanisms,...
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