A new lightweight link quality based reputation model for Space-Air-Ground Integrated Wireless Sensor Network (SAGIWSN)

Efficient communication system, high integration capability, effective acquisition and sensing system might be practical by the use of complex interconnection and modern heterogeneous networks, for this need, Space-Air-Ground Integrated Wireless Sensor Network (SAGIWSN) is a promoting concept. Previously proposed reputation systems have many limitations such high computation cost or slow reaction. In this paper, we present a new reputation model that helps to detect malicious nodes and limit selfishness in the network. Our concept is based on the estimation of link quality, it uses a parameter called link quality indicator (LQI) to provide more precision for the reputation measurement. Applicable for SAGIWSN, Our model has being tested and adapted considering to be lightweight and it can acquaint the size of the network, the high mobility and the security requirement.