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wireless wide area network example

Describe wireless wide area networks (WWANs) and how they are used

Describe wireless wide area networks (WWANs) and how they are used

Kĩ thuật Viễn thông

... 8-PSKCDMA2000 1xRTTãOperates on two 1.25 MHz -wide frequency channelsãSupports 144 Kbps packet data transmission 2ObjectivesãDescribe wireless wide area networks (WWANs) and how they are usedãDescribe ... 1xEVDOãFor 2.5G CDMA2000 1xRTT networks 25Binary Runtime Environment for Wireless (BREW)ãBREW is a thin software environmentVery small program that resides on a wireless device ãCapable ... (continued)ãShort Message Services (SMS)One of the most widely used applications–Allows for the delivery of short, text-based messages between wireless devicesãMessages are limited to about 160...
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Low Rate Wireless Personal Area Networks

Low Rate Wireless Personal Area Networks

Kỹ thuật lập trình

... using SIRãThen they shift to FIR speed Wireless CommunicationsLow Rate Wireless Personal Area Networks 2ObjectivesãDescribe a wireless personal area network (WPAN)ãList the different WPAN ... workãDescribe the security features of low-rate WPAN technology 3What is a WPAN?ã Wireless personal area network (WPAN)Group of technologies that are designed for short-range communications–Eliminates ... devicesãIncludeBluetooth802.15.4 (ZigBee) 12Bluetooth Protocol Stack (continued) 14Bluetooth Protocol Stack (continued)ã Network topologies (continued)ScatternetãGroup of piconets in which connections exist between...
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High Rate Wireless Personal Area Networks

High Rate Wireless Personal Area Networks

Kĩ thuật Viễn thông

... same order in every frame Wireless# Guide to Wireless Communications 15802.15.3 Network Topology (continued) Wireless# Guide to Wireless Communications 27Ultra Wide Band (UWB)ãAllows new ... corrected–Also called error correction (FEC) Wireless# Guide to Wireless Communications 26Mesh Networking (802.15.5) (continued) Wireless# Guide to Wireless Communications 28How UWB WorksãUWB ... and storage Wireless# Guide to Wireless Communications 32How UWB Works (continued) Wireless# Guide to Wireless Communications 18Additional MAC Layer Functionality (continued) Wireless CommunicationsChapter...
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Wireless Local Area Networks

Wireless Local Area Networks

Kỹ thuật lập trình

... wired network interface portãAP functions Wireless communications base stationBridge between the wireless and wired networks 6 Wireless Network Interface Card (continued) 5 Wireless Network ... of wireless clients and an APãExtended Service Set (ESS)Two or more BSS wireless networks installed in same area –Provides users with uninterrupted mobile access to the network ãAll wireless ... communicate among themselves Wireless Communications Wireless Local Area Networks 4WLAN ComponentsãMinimal hardware needed for a WLANComputerISP Wireless network interface cardAccess...
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Wireless Metropolitan Area Networks

Wireless Metropolitan Area Networks

Kĩ thuật Viễn thông

... a WMAN?ã Wireless metropolitan area networks (WMANs)Provide wireless connectivity across a substantial geographical area such as a large cityãWMANs primary goalsExtend wired networks beyond ... Wireless Communications Wireless Metropolitan Area Networks 14Multichannel Multipoint Distribution Service (MMDS)ãMultichannel multipoint distribution service (MMDS) Fixed broadband wireless ... same network ãWiMAX MAC layer makes it easy for carriers to deploy the network ãRange of a WiMAX network is measured in milesãCellular phone operators can easily incorporate WiMAX networks...
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LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

Công nghệ thông tin

... cấu hình native VLAN thì phải cấu hình ở giao diện vật lý.CHƯƠNG IILÝ THUYẾT VỀ MẠNGWAN (WIDE AREA NETWORK) I. KHÁI NIỆM :Là mạng được thiết lập để liên kết các máy tính của hai hay nhiều khu ... trí rất xa nhau, ví dụ như những quốc gia khác nhau, thì khi đó ta có mạng diện rộng WAN (Wide Area Network) TrangNGUYỄN ĐÌNH CÔNG – 36CLTH2929 V./. CÁC CÔNG NGHỆ MẠNG LAN :5.1. CÔNG NGHỆ ... nhất được nhận dạng bởi thiết bị hai đầu.5.4 CÔNG NGHỆ VLAN:VLAN là viết tắt của Virtual Local Area Network hay còn gọi là mạng LAN ảo. Một VLAN được định nghĩa là một nhóm logic các thiết bị...
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Tổng quan về mạng WAN (Wide Area Netwwork) - Phần mềm Cool Chat

Tổng quan về mạng WAN (Wide Area Netwwork) - Phần mềm Cool Chat

Kĩ thuật Viễn thông

... hết sức quan trọng. Giải pháp mạng WAN ( Wide Area Network - Mạng diện rộng ) được áp dụng. Chúng có nhiệm vụ kết hợp tất cả các mạng LAN (Local Area Network ) ở xa lại thành một mạng duy nhất ... có hiệu quả.Theo mô hình OSI (Open System Interconnect ) thì chức năng của router thuộc mức 3 ( Network ), cung cấp thiết bị với thông tin chứa trong các header của giao thức, giúp cho việc xử...
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Wireless Local Area Networks

Wireless Local Area Networks

Kỹ thuật lập trình

... P. Wideband Local Access: Wireless LAN and Wireless ATM, IEEE Commu-nications Magazine, November, 1997, 34–40.[15] Geier J. Wireless LANs, Implementing Interoperable Networks, Macmillan Network ... improve-ments.9.7 SummaryIn this chapter we cover the area of Wireless Local Area Networks by focusing on a numberof issues:†WLAN topologies. The two types of wireless LAN topologies used today are the ... summarizedbelow:†Throughput. Although this is a general requirement for every network, it is an even more Wireless Local Area Networks 245Figure 9.5 Example of frequency reuse ẵ221IÊ ranfị Ê Slot_time, where...
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Tài liệu cisco migration_Enterprise Branch Wide Area Application docx

Tài liệu cisco migration_Enterprise Branch Wide Area Application docx

Chứng chỉ quốc tế

... Telephony (SRST). ãApplication networking servicesWAE network module (NME-WAE-302, NME-WAE-502). ã Network management servicesThe Network Access Module (NM-NAM) offers network monitoring services ... the network path) or destination IP (service group 62 in the network path). The allocated hash buckets are synchronized within the service group, and the hash 49Enterprise Branch Wide Area ... NME-WAE-302NME-WAE-502 Network moduleWAAS network modules cannot be configured as a WAAS CM.Supported on the 2800 and 3800 ISR routers. Network management NM-NAM Network moduleTable 4...
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Tài liệu Enterprise Data Center Wide Area Application Services (WAAS) Design Guide pptx

Tài liệu Enterprise Data Center Wide Area Application Services (WAAS) Design Guide pptx

Quản trị mạng

... supports the storage area network (SAN) fabric and connectivity between servers and other storage devices, such as storage arrays and tape drives.Front End Network The front-end network contains ... 95134-1706 USAEnterprise Data Center Wide Area Application Services (WAAS) Design GuideThis document offers guidelines and best practices for implementing Wide Area Application Services (WAAS) ... End Network 12Core Layer 13Aggregation Layer 13Access Layer 13Back-End Network 14SAN Core Layer 14SAN Edge Layer 15WAN Edge Component 15 19Enterprise Data Center Wide Area...
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Tài liệu Wide Area Networks doc

Tài liệu Wide Area Networks doc

Quản trị mạng

... FTPPackets are:Marked (colored) at ingress at network edge IP Precedence / Differentiated Services Code Point (DSCP) setPoliced and shaped at the network edgePotentially discarded by Weighted ... matching traffic pattern, for example, 25Kbps of traffic to “Bronze”San JoseOttawaCAR Bandwidth ManagementCAR Bandwidth ManagementToday, all the packets on the network look the same, and are ... be used to police precedence bits set externally to the network either by the customer or by a downstream service provider. Thus the network can decide to either accept or override external...
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Tài liệu Chapter11 Wide Area Networking Protocols pptx

Tài liệu Chapter11 Wide Area Networking Protocols pptx

Chứng chỉ quốc tế

... Chapter11 Wide Area Networking Protocols Introduction to Wide Area Networks WAN 是覆盖地理范围相对较为广阔的数据通信网络,它一般是利用公共载体(比如电信公司)提供的设备进行传输.WAN 技术运行在 OSI 的最下 3 层 广域网 (Wide Area Network, WAN)的一些术语 ... 使用网络控制协议 (Network Control Protocol,NCP)来验证上层的 OSI 参考模型的网络层协议 6.异步传输模式(Asynchronous Transfer Mode,ATM):国际电信联盟电信标准委员会(ITU-T)制定的信元(cell)中继续标准.ATM 使用固定长度的 53 字节长的信元方式进行传输,ATM 网络的面向连接的 Cabling the Wide ... Mode,ATM):国际电信联盟电信标准委员会(ITU-T)制定的信元(cell)中继续标准.ATM 使用固定长度的 53 字节长的信元方式进行传输,ATM 网络的面向连接的 Cabling the Wide Area Network Cisco 的串行连接支持几乎所有类型的 WAN 服务.HDLC,PPP 和帧中继使用相同的物理层定义的接口,但是和 ISDN 的不一样.我们先来回顾下 router...
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