網(wǎng)絡(luò)可靠性是網(wǎng)絡(luò)性能評(píng)估指標(biāo)的一個(gè)方面，對(duì)于網(wǎng)絡(luò)系統(tǒng)級(jí)的性能評(píng)估有重要意義。該文通過構(gòu)建隨時(shí)間變化的表征網(wǎng)絡(luò)節(jié)點(diǎn)連通性狀態(tài)的關(guān)聯(lián)矩陣，在節(jié)點(diǎn)故障和移動(dòng)性變化的情況下，對(duì)自組網(wǎng)網(wǎng)絡(luò)可靠性進(jìn)行了研究，提供了一種自組網(wǎng)可靠性定量評(píng)價(jià)方法。通過大量的隨機(jī)試驗(yàn)表明，該方法能有效驗(yàn)證自組網(wǎng)的可靠性。
關(guān) 鍵 詞 自組網(wǎng); 評(píng)價(jià); 關(guān)聯(lián)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