Secure Localization Based on Gradient Descent Approach Under Noncoordinated and Coordinated Attacks in WSNs
Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
CEPS04_028
تاریخ نمایه سازی: 11 مرداد 1396
Abstract:
In many applications of wireless sensor networks,localization is one of the important issues that affect the quality of network operation. Most localization algorithms rely onanchor nodes that their positions are known and they help positioning of the remaining nodes. When the anchor nodes areaffected by the attacker, they send false information in the network. Thus, it is required to design a secure localization algorithm that removes the effect of the false information. In thispaper, we describe a secure localization algorithm based on the gradient descent approach with pruning step and explain thenoncoordinated, coordinated attacks and the combination of them as well. We evaluate the performance of the algorithmunder the combination of attacks. Then, to reduce the localization error, we propose a new method by considering the direction of force vectors in pruning step. Simulation resultsshow the effectiveness of the proposed method in the hostile environment
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Authors
Zahra Ansari
Department of Electrical and Computer Engineering University of Birjand Birjand, Iran
Reza Ghazizadeh
Department of Electrical and Computer Engineering University of Birjand Birjand, Iran