網絡可靠性是網絡性能評估指標的一個方面，對于網絡系統級的性能評估有重要意義。該文通過構建隨時間變化的表征網絡節點連通性狀態的關聯矩陣，在節點故障和移動性變化的情況下，對自組網網絡可靠性進行了研究，提供了一種自組網可靠性定量評價方法。通過大量的隨機試驗表明，該方法能有效驗證自組網的可靠性。
關 鍵 詞 自組網; 評價; 關聯矩陣; 可靠性

Abstract The reliability of network reflects one aspect of network’s performance, it plays an important part in the evaluation of system performance. Is this paper, a new estimate index of network reliability is introduced and an incidence matrix is used to depict the connectivity of the network nodes in a dynamic network model. A determinant arithmetic of the network connectivity and a calculate method are presented to achieve reliavility evaluation for Ad hoc network. Simulation results through random trials indicate that the method presented in this paper is usable to validate the reliability of the dynamic Ad hoc network.
Key words Ad hoc network; evaluation; incidence matrix; reliabi