【正文】 狀網(wǎng)無線回程天線高度高于周圍樹木。另外山上植物茂盛，對無線信號衰減較大。設(shè)備覆蓋天線采用全向天線，盡可能提高覆蓋范圍，保證終端從各方向均可順利接入系統(tǒng)。 應(yīng)急組網(wǎng)主要包括： 野外開闊地應(yīng)急覆蓋 野外開闊地是無線網(wǎng)絡(luò)覆蓋最容易實現(xiàn)的場景之一。 城市 應(yīng)急通信 無線 解決方案 目 錄 1 方案概述 ......................................................................................................................................... 3 2 組網(wǎng)示例 ......................................................................................................................................... 4 3 系統(tǒng)功能 ......................................................................................................................................... 5 4 系統(tǒng)技術(shù)指標 .................................................................................................................................. 5 5 網(wǎng)絡(luò)拓撲結(jié)構(gòu) .................................................................................................................................. 6 網(wǎng)絡(luò)回傳方式 ....................................................................................................................... 6 平面型網(wǎng)絡(luò) ........................................................................................................................... 7 立體型網(wǎng)絡(luò) ........................................................................................................................... 7 移動型網(wǎng)絡(luò) ........................................................................................................................... 8 6 技術(shù)選型 ......................................................................................................................................... 9 第三代多模塊 mesh網(wǎng)狀網(wǎng)組網(wǎng) .......................................................................................... 9 部署維護簡單 – 自動配置、自動發(fā)現(xiàn) ...................................................................... 10 網(wǎng)絡(luò)穩(wěn)定性 – 自動調(diào)節(jié)、鏈路自愈 ......................................................................... 10 多模塊、多信道、多射頻技術(shù) mesh ........................................................................ 11 車載移動支持 ........................................................................................................... 15 多業(yè)務(wù)無線網(wǎng) ..................................................................................................................... 16 標準終端支持 ........................................................................................................... 16 多用戶安全接入 ....................................................................................................... 16 服務(wù)質(zhì)量 .................................................................................................................. 17 安全性 ................................................................................................................................ 20 WEP/TKIP/AES支持 .............................................................................................. 20 MAC 地址認證和 SSID廣播控制 ............................................................................. 21 認證 ............................................................................................................ 21 VPN透傳 ................................................................................................................. 22 Mesh回程安全 ........................................................................................................ 22 MultiSSID/VLAN .................................................................................................. 22 非法設(shè)備發(fā)現(xiàn) ........................................................................................................... 23 可管理性 ............................................................................................................................ 25 Manager/One 自有網(wǎng)管 ......................................................................................... 25 SNMP和 Syslog支持 ............................................................................................. 28 模塊化產(chǎn)品設(shè)計 .............................