WTLS協(xié)議性能仿真

無線網(wǎng)絡(luò)必然要與Internet結(jié)合，實(shí)現(xiàn)移動(dòng)用戶手機(jī)上網(wǎng)，對(duì)無線應(yīng)用協(xié)議棧WAP中各協(xié)議的性能進(jìn)行仿真就顯得非常必要，該文基于對(duì)WAP協(xié)議棧中的WTLS協(xié)議的仿真，評(píng)估了WTLS協(xié)議；并利用OPNET軟件對(duì)該協(xié)議建立網(wǎng)絡(luò)拓?fù)?、建立?jié)點(diǎn)模型等，給出了WTLS協(xié)議在用戶節(jié)點(diǎn)數(shù)、用戶節(jié)點(diǎn)通話時(shí)間以及信道速率變化等方面的性能仿真結(jié)果，重點(diǎn)指標(biāo)包括對(duì)需實(shí)時(shí)響應(yīng)的信號(hào)有重要影響的分組延遲、響應(yīng)延遲變化量及響應(yīng)時(shí)間。
關(guān) 鍵 詞 無線傳輸層安全協(xié)議; 性能指標(biāo); 仿真; 建立模型

Abstract With the combination of wireless network and Internet, mobile subscribers will certainly access Internet, so it is very necessary to simulate protocols in WAP. Based on the simulation to WTLS protocol in WAP, this paper evaluates WTLS protocol. We adopt the software OPNET to build network topology, node model, etc, and acquire the protocol’s simulation performance results in moving subscriber numbers, moving subscribers’ average session time, channel rates variety, etc. The important indexes include packet delay, response delay change quantities and response time. These performances will seriously affect real time response signal.
Key words WTLS protocol; Performance index; Simulation; Build model