A Key Predistribution Scheme for Wireless Sensor Networks with Obstacles Using Deployment Knowledge

• Main Authors: Chung-Yi Hsieh, 謝仲益
• Other Authors: Jung-Shian Li
• Format: Others
• Language: en_US
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/17850691997521333101

碩士 === 國立成功大學 === 電腦與通信工程研究所 === 97 === Because of the development and advancement of VLSI technology recently, wireless sensor networks become a new emerging type of wireless networks, and it has many novel kinds of applications such as environment monitoring, military detection. But with the limitation of hardware and characteristic of application scenario, it is a vital important research issue for wireless sensor networks owing to the consideration of security against bad environment and malicious attacks. The purpose of our thesis is as follows, based on many researches related to key pre-distribution for security issue on wireless sensor networks using deployment knowledge, we redistribute the common ratio of sub-key-pool according to the obstacles circumstances, namely we reallocate the number of common key of each sub-key-pool in order to enhance the communication connectivity around obstacles and reduce unnecessary key assignments. we find out it do improve the connectivity effectively and maintain the security via simulation.