Low Rate Wireless Personal Area Networks
Low Rate Wireless Personal Area Networks
... Wireless CommunicationsLow Rate Wireless Personal Area Networks 2Objectives•Describe a wireless personal area network (WPAN)•List the different WPAN ... IrDA, Bluetooth, and ZigBee work•Describe the security features of low- rate WPAN technology 3What is a WPAN? Wireless personal area network (WPAN)–Group of technologies that are designed for short-range ... speci...
Ngày tải lên: 13/09/2012, 10:52
High Rate Wireless Personal Area Networks
... Wireless CommunicationsChapter 6High Rate Wireless Personal Area Networks Wireless# Guide to Wireless Communications 2Objectives•Define a high rate wireless personal area network ... piconet–Neighbor piconets•Allow coexistence with other piconets in the same area Wireless# Guide to Wireless Communications 15802.15.3 Network Topology (continued) Wireless# Guide...
Ngày tải lên: 13/09/2012, 10:52
wireless personal area networks - performance, interconnection, & security with ieee 802.15.4
... Ltd. ISBN: 978-0-470-51847-2 1 Prologue: Wireless Personal Area Networks 1.1 Wireless Ad Hoc Networks Wireless ad hoc networks are a category of wireless networks that utilize multi-hop relaying of ... chapters, one of which is devoted to the main tenets of wireless ad hoc networks, and wireless personal area networks and wireless sensor networks in particul...
Ngày tải lên: 25/03/2014, 12:14
Wireless Local Area Networks
... Wireless CommunicationsWireless Local Area Networks 2Objectives•Describe how WLANs are used•List the components and modes of a WLAN 3WLAN Applications Wireless networks are increasing ... (BSS)–Consists 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 networ...
Ngày tải lên: 13/09/2012, 10:52
Wireless Metropolitan Area Networks
... Wireless CommunicationsWireless Metropolitan Area Networks 2Objectives•Explain why wireless metropolitan area networks (WMANs) are needed•Describe the ... (WiMAX) 3What is a 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 beyond ... mil...
Ngày tải lên: 13/09/2012, 10:52
Describe wireless wide area networks (WWANs) and how they are used
... Wireless CommunicationsWireless Wide Area Networks 2Objectives•Describe wireless wide area networks (WWANs) and how they are used•Describe the ... telephone networks (continued)–Transmitters and cell phones operate at low power•Enables the signal to stay confined to the cell•Signal at a specific frequency does not go far beyond the cell area Same ... require client software...
Ngày tải lên: 13/09/2012, 10:52
Personal Area Networks (PANs)
... 11 Personal Area Networks (PANs) 11.1 Introduction to PAN Technology and Applications 11.1.1 Historical Overview The concept of a Personal Area Network (PAN) differs from ... decided to join the area of developing specifications for PANs. Thus the 802.15 Working Group [2–5] was Wireless Networks3 00 1 Since all PAN technology alternatives today employ wireless transmission, .....
Ngày tải lên: 29/09/2013, 21:20
Wireless Local Area Networks
... data rate is slow. Figure 9.10 shows the spectrum for an OFDM transmission. Wireless Local Area Networks 255 Figure 9.10 Detection of OFDM symbols The spectrums of the subcarriers are not separated ... included in the area of WLANs. 9.1.3 Wireless LAN Concerns The primary disadvantage of wireless medium transmission, compared to wired transmission, is its increased error rate....
Ngày tải lên: 29/09/2013, 21:20
Wireless Local Area Network
... ĐẠI HỌC BÁCH KHOA HÀ NỘI KHOA ĐIỆN TỬ VIỄN THÔNG ––––––––––––––––– Computer Networks Seminar Đề tài : Wireless Local Area Network Sinh viên thực hiện : ĐỖ VIỆT THANH LÝ HOÀI NAM Lớp : ĐIỆN TỬ ... IEEE802.11g 6. XU THẾ PHÁT TRIỂN CỦA WLAN 3 1. TỔNG QUAN Mạng LAN không dây viết tắt là WLAN (Wireless Local Area Network), là một mạng dùng để kết nối hai hay nhiều máy tính với nhau mà khô...
Ngày tải lên: 01/09/2013, 10:30
CCNA Layer 2 Switching - Virtual Local Area Networks Lab Scenario
Ngày tải lên: 19/10/2013, 02:15