Algorithm design and error analysis of quantized RSSI based localization in wireless sensor networks

2007 ◽  
Author(s):  
Xiaoli Li
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Error Analysis ◽  
Algorithm Design ◽  
Wireless Sensor

Error analysis of range-based localisation algorithms in wireless sensor networks

2012 ◽  
Vol 12 (2) ◽  
pp. 78 ◽  
Author(s):  
Jianying Zheng ◽  
Yu e Sun ◽  
Yan Huang ◽  
Yiming Wang ◽  
Yang Xiao
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Error Analysis ◽  
Wireless Sensor

Load-Balanced Low-Power Routing Algorithm Design for Wireless Sensor Networks

2014 ◽  
Vol 926-930 ◽  
pp. 3641-3644
Author(s):  
Bo He
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Power Consumption ◽  
Low Power ◽  
Routing Algorithm ◽  
Algorithm Design ◽  
Wireless Sensor ◽  
Load Factor ◽  
Simulation Results ◽  
Load Balanced

Low-power wireless sensor networks (WSNs) design involves all aspects of research in wireless sensor networks. As energy is limited in wireless sensor networks, how to effectively manage and use energy of WSNs, and how to maximize the reduction of power consumption in WSNs and extend the lifetime of WSNs become a key problem faced by wireless sensor networks. Aimed at these problems, a low-power clustering routing algorithm based on load-balanced is proposed. The algorithm introduced an energy load factor to reduce the power consumption of WSNs. The simulation results show that the low-power routing algorithm can effectively reduce power consumption of networks and extend the lifetime of networks.

scholarly journals Node-Identification-Based Secure Time Synchronization in Industrial Wireless Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2718 ◽  
Author(s):  
Zhaowei Wang ◽  
Peng Zeng ◽  
Linghe Kong ◽  
Dong Li ◽  
Xi Jin
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Time Synchronization ◽  
Information Filtering ◽  
Algorithm Design ◽  
Main Idea ◽  
Wireless Sensor ◽  
Clock Skew ◽  
Industrial Wireless Sensor Networks ◽  
Sybil Attacks

Time synchronization is critical for wireless sensors networks in industrial automation, e.g., event detection and process control of industrial plants and equipment need a common time reference. However, cyber-physical attacks are enormous threats causing synchronization protocols to fail. This paper studies the algorithm design and analysis in secure time synchronization for resource-constrained industrial wireless sensor networks under Sybil attacks, which cannot be well addressed by existing methods. A node-identification-based secure time synchronization (NiSTS) protocol is proposed. The main idea of this protocol is to utilize the timestamp correlation among different nodes and the uniqueness of a node’s clock skew to detect invalid information rather than isolating suspicious nodes. In the detection process, each node takes the relative skew with respect to its public neighbor as the basis to determine whether the information is reliable and to filter invalid information. The information filtering mechanism renders NiSTS resistant to Sybil attacks and message manipulation attacks. As a completely distributed protocol, NiSTS is not sensitive to the number of Sybil attackers. Extensive simulations were conducted to demonstrate the efficiency of NiSTS and compare it with existing protocols.

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