wireless body area network seminar ppt

Tài liệu cwnaTMCertified Wireless Network AdministratorOfficial Study GuideEndorsed by the Wireless LAN AssociationIndustry Approved!TMExam PW0-100Objective-by-Objective coverage of the CWNA certification examVendor-neutral wireless network trainin pptx

Tài liệu cwnaTMCertified Wireless Network AdministratorOfficial Study GuideEndorsed by the Wireless LAN AssociationIndustry Approved!TMExam PW0-100Objective-by-Objective coverage of the CWNA certification examVendor-neutral wireless network trainin pptx

Ngày tải lên : 17/02/2014, 15:20
... Spectrum Technology 47 Uses of Spread Spectrum 48 Wireless Local Area Networks 48 Wireless Personal Area Networks 49 Wireless Metropolitan Area Networks 49 FCC Specifications 49 Frequency Hopping ... popular networking certification programs leave off: wireless LANs. Your study of wireless networking will help you bring together two fascinating worlds of technology, because wireless networks ... keep pace. Wireless LANs are reaching into new areas with each passing month that nobody thought they would ever reach. If you administer LANs, there's simply no avoiding wireless. Wireless...
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How To Set Up Wireless Network Security ppt

How To Set Up Wireless Network Security ppt

Ngày tải lên : 05/03/2014, 23:20
... (or go to Start > Control Panel > Network) 2. Select your Wireless LAN Card, right click on the icon and select “Properties”. Click on Wireless Network tab. 3. Select the Access ... Windows XP Wireless Utility as an example. 2. Right click on “My Network Places” on your desktop and select “Properties” (or go to Start > Control Panel > Network) . 3. Select your Wireless ... Windows XP Wireless Utility as an example. 2. Right click on “My Network Places” on your desktop and select “Properties” (or go to Start > Control Panel > Network) . 3. Select your Wireless...
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BACnet Wide Area Network Security Threat Assessment ppt

BACnet Wide Area Network Security Threat Assessment ppt

Ngày tải lên : 14/03/2014, 22:20
... can be implemented to increase network security. There are two primary types of IDS: network based and host-based. The network based system acts similarly to a network level firewall. It cannot ... information about the network con- figuration. Authentication, especially of exter- nal BACnet users. Network Layer Attacks I-Am-Router- To -Network The I-Am-Router-To -Network message can ... traffic across the untrusted network (LAN/Internet). • As a router, separates the trusted network from the untrusted and thus can act as a BACnet firewall, performing network layer or application...
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AT&T Wireless IP Network Security pptx

AT&T Wireless IP Network Security pptx

Ngày tải lên : 22/03/2014, 15:21
... one considers that the AT&T Wireless IP network can connect to many other networks, including other wireless IP networks, customer networks, value-added service networks, online information ... corporate network is connected to the AT&T Wireless IP network, all or part of the corporate network is effectively connected to the AT&T Wireless IP network and, indirectly, to these other networks. Internal ... include wireless data networks requires an understanding of the security being utilized by the existing wireless data technology, as well as the security provided by networks to which the wireless network...
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Low Rate Wireless Personal Area Networks

Low Rate Wireless Personal Area Networks

Ngày tải lên : 13/09/2012, 10:52
... using SIR • Then they shift to FIR speed Wireless Communications Low Rate Wireless Personal Area Networks 2 Objectives • Describe a wireless personal area network (WPAN) • List the different WPAN ... work • Describe the security features of low-rate WPAN technology 3 What is a WPAN? • Wireless personal area network (WPAN) – Group of technologies that are designed for short- range communications – Eliminates ... devices • Include – Bluetooth – 802.15.4 (ZigBee) 12 Bluetooth Protocol Stack (continued) 14 Bluetooth Protocol Stack (continued) • Network topologies (continued) – Scatternet • Group of piconets in which connections exist between...
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High Rate Wireless Personal Area Networks

High Rate Wireless Personal Area Networks

Ngày tải lên : 13/09/2012, 10:52
... corrected – Also called error correction (FEC) Wireless# Guide to Wireless Communications 26 Mesh Networking (802.15.5) (continued) Wireless# Guide to Wireless Communications 28 How UWB Works • UWB ... are present in the same order in every frame Wireless# Guide to Wireless Communications 15 802.15.3 Network Topology (continued) Wireless# Guide to Wireless Communications 27 Ultra Wide Band (UWB) • Allows ... and storage Wireless# Guide to Wireless Communications 32 How UWB Works (continued) Wireless# Guide to Wireless Communications 18 Additional MAC Layer Functionality (continued) Wireless Communications Chapter...
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Wireless Local Area Networks

Wireless Local Area Networks

Ngày tải lên : 13/09/2012, 10:52
... wired network interface port • AP functions – Wireless communications base station – Bridge between the wireless and wired networks 6 Wireless Network Interface Card (continued) 5 Wireless Network ... of wireless clients and an AP • Extended Service Set (ESS) – Two or more BSS wireless networks installed in same area – Provides users with uninterrupted mobile access to the network • All wireless ... communicate among themselves Wireless Communications Wireless Local Area Networks 4 WLAN Components • Minimal hardware needed for a WLAN – Computer – ISP – Wireless network interface card – Access...
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Wireless Metropolitan Area Networks

Wireless Metropolitan Area Networks

Ngày tải lên : 13/09/2012, 10:52
... WMAN? • Wireless metropolitan area networks (WMANs) – Provide wireless connectivity across a substantial geographical area such as a large city • WMANs primary goals – Extend wired networks ... Wireless Communications Wireless Metropolitan Area Networks 14 Multichannel Multipoint Distribution Service (MMDS) • Multichannel multipoint distribution service (MMDS) – Fixed broadband wireless ... same network • WiMAX MAC layer makes it easy for carriers to deploy the network • Range of a WiMAX network is measured in miles • Cellular phone operators can easily incorporate WiMAX networks 3 What...
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Describe wireless wide area networks (WWANs) and how they are used

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

Ngày tải lên : 13/09/2012, 10:52
... 1xEVDO • For 2.5G CDMA2000 1xRTT networks 25 Binary Runtime Environment for Wireless (BREW) • BREW is a thin software environment – Very small program that resides on a wireless device • Capable ... frequency channels • Supports 144 Kbps packet data transmission 2 Objectives • Describe wireless wide area networks (WWANs) and how they are used • Describe the applications that can be used on ... technologies 16 2.5 Generation Cellular Telephony (continued) • 2.5G network technologies – General Packet Radio Service (GPRS) • For TDMA or GSM 2G networks • Uses eight time slots in a 200 KHz spectrum and...
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LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

LÝ THUYẾT VỀ MẠNG LAN (LOCAL AREA NETWORK)

Ngày tải lên : 25/04/2013, 11:58
... 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 ... hình native VLAN thì phải cấu hình ở giao diện vật lý. CHƯƠNG II LÝ THUYẾT VỀ MẠNG WAN (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) Trang NGUYỄN ĐÌNH CÔNG – 36CLTH 2929 V./. CÁC CÔNG NGHỆ MẠNG LAN : 5.1. CÔNG NGHỆ CHUYỂN...
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Wireless Local Area Networks

Wireless Local Area Networks

Ngày tải lên : 29/09/2013, 21:20
... improve- ments. 9.7 Summary In this chapter we cover the area of Wireless Local Area Networks by focusing on a number of issues: † WLAN topologies. The two types of wireless LAN topologies used today are the ... 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 Architecture ... Control Protocol for Wireless Data Networks, in Proceedings of IEEE GLOBECOM, 1993, pp. 1713–1717. [9] Chen K C. and Lee C H. Group Randomly Access Polling for Wireless Data Networks, in Proceedings...
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