Abstract:
Wireless Sensor Networks (WSNs) require secure communication framework because of their vulnerability against different types of malicious attacks. The main objective of this research work is to implement a secure and reliable communication framework for WSNs. A comprehensive study of existing communication security and transmission security methods for WSNs has been carried out. Encryption algorithm AES-256 has been implemented on microcontroller hardware and modifications have been made to enhance the speed of processing and reduce requirement of computational resources. For transmission security, a mechanism of frequency hopping and its synchronization has been proposed and implemented to achieve hop rate of 100 hops/sec for WSNs. The spectrum of proposed system has also been analyzed using Universal Serial Radio Peripheral 2 devices. Proposed system offers data confidentiality, reliability and improved link quality.
