| This dissertation focuses on the development of routing algorithms for secure and trusted routing in wireless ad hoc and sensor network.; The first paper presents the Trust Level Routing (TLR) protocol, an extension of the optimized energy-delay routing (OEDR) protocol, focusing on the integrity, reliability and survivability of the wireless network. TLR calculates the link costs based on a composite metric (delay incurred, energy available at the neighbor node, energy spent during transmission and the number of packets sent on each link) for the selection of MPR nodes.; The second paper analyzes both OLSR and TLR in terms of survivability and reliability to emphasize the improved performance of the network in terms of lifetime and proper delivery of data. The goal is to explain analytically the achieved improvements in the energy consumption and its effect on the survivability and reliability.; The third paper proposes a statistical reputation model that uses the watchdog mechanism to observe the cooperation of the neighboring nodes. This model uses the Beta distribution as a basis for calculating/updating the trust value by applying the moment matching method for parameter estimation.; The last paper presents the results of the hardware implementation of Energy-Efficient Hybrid Key Management. This study serves two purposes; first, it identifies the effects of hardware constraints on the overall performance of the protocol. Secondly, it gives a foundation for the improvement of the simulators. |
