... automatically, chọn This is a computer-to-computer(adhoc) network; wireless access points are not used. Nhấn Ok để quay lại bảng Wireless Networks và nhấn Ok một lần nữa để kết thúc.2Lúc này ... • Trong Wireless Networks nhấn vào nút Add.• Trong Association, đặt tên cho mạng trong mục Network name,...
... bản tuyệt vời khi nó có thể Monitor&Inject được với card wireless 4965AGN …Chuẩn bị:Đầu tiên, để chắc chắn máy bạn đg dùng card Wireless 4965AGN thì xem hình dưới đây: ... xuất hiện màn hình Menu lựa chọn. Vào đến màn hình Backtrack, 1 số Hướng dẫn Hack Wifi với card wireless 4965AGNVài dòng tâm sự:Thời gian gần đây area ko có điều kiện Online nhiều trên 4rum, ... mạnh kinh dị!), tìm tòi, nghiên cứu, đọc tài liệu và xem cả Clip vẫn ko đc … vì đau đớn thay chip Wireless của mình ko support hack với phiên bản BackTrack 3 (phiên bản CDHack Wifi nổi tiếng nhất...
... Tổng quan về mạng Wireless Sensor2 - Chơng II : Năng lợng trong mạng Wireless Sensor3 - Chơng III : Phần mềm mô phỏng cho mạng Wireless Sensor4 - Chơng IV: Mô phỏng mạng Wireless SensorDo ... thu thập thông tin trong đó mạng Wireless Sensor hiện đang đợc dùng phổ biến trên thế giới và đang dần xâm nhập vào nớc ta. Có nhiều vấn đề đặt ra cho mạng Wireless Sensor nh vấn đề năng lợng, ... án: Vấn đề năng lợng trong mạng Wireless Sensor và đánh giá bằng mô phỏng. Mục đích của đồ án này là tìm hiểu các vấn đề liên quan tới năng lợng trong mạng Wireless Sensor, từ đó đa ra các...
... 6: Wireless and Mobile Networks 6-4Elements of a wireless networknetwork infrastructure wireless hosts❒laptop, PDA, IP phone❒run applications❒may ... identical to) our slides, and note our copyright of this material.Thanks and enjoy! JFK/KWRAll material copyright 1996-2006J.F Kurose and K.W. Ross, All Rights Reserved 6: Wireless and Mobile ... mobile is remotewide area networkcorrespondent 6: Wireless and Mobile Networks 6-6Elements of a wireless networknetwork infrastructure wireless link❒typically used to connect mobile(s)...
... marketand society in general.1.2 ChallengesThe use of wireless transmission and the mobility of most wireless systems give rise to a Wireless Networks12(2.3) applies, the channel is said to ... reported. Wireless Networks20Similarly, a lot of time will have to pass before we possess such knowledge on the healthconcerns regarding wireless networks.1.3 Overview1.3.1 Chapter 2: Wireless ... compete for 3G licenses.2.3 Wireless Propagation Characteristics and Modeling2.3.1 The Physics of PropagationAn important issue in wireless communications is of course the amount of information...
... relocate the office28The Wireless Landscape3How Wireless Technology is Used• Wireless –Describes devices and technologies that are not connected by a wire• Wireless communications–Transmission ... user data without the use of wires• Wireless data communications technologies include:–Bluetooth– Wireless LAN and WAN–Satellite–Cellular29The Wireless Landscape (continued)10Satellite ... (continued)24Fixed Broadband Wireless (continued)17 Wireless Local Area Networks (continued)7Bluetooth and Ultra Wide Band (continued)22Fixed Broadband Wireless •Integrated Services...
... and a chip16RFID Applications–Transportation and Military•RFID tags embedded in standard courier packages–Can speed up and help automate sorting, in addition to preventing errors•The ... vision-impaired people using a special device to listen to a description of their drugs and dosages Wireless CommunicationsRadio Frequency Identification4RFID System Components•Electronic Product...
... transmit using SIR•Then they shift to FIR speed Wireless CommunicationsLow Rate Wireless Personal Area Networks2Objectives•Describe a wireless personal area network (WPAN)•List the different ... standard–IrDA devices cannot send and receive at the same time–IrDA is easy to use•Bluetooth is a wireless technology that uses short-range radio frequency (RF) transmissions–Supported by over ... 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...
... superframes Wireless# Guide to Wireless Communications 22Additional MAC Layer Functionality (continued) Wireless# Guide to Wireless Communications 24Additional MAC Layer Functionality (continued) Wireless# ... and storage Wireless# Guide to Wireless Communications 32How UWB Works (continued) Wireless# Guide to Wireless Communications 18Additional MAC Layer Functionality (continued) Wireless CommunicationsChapter ... are present in the 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)•Allows...
... 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 ... functions– Wireless communications base station–Bridge between the wireless and wired networks6 Wireless Network Interface Card (continued)5 Wireless Network Interface Card•Network interface card ... Service Set (IBSS) mode• Wireless clients communicate directly among themselves without using an AP–Quick and easy setup of a wireless network•Drawback is that wireless clients can only...
... Wireless Communications Wireless Metropolitan Area Networks14Multichannel Multipoint Distribution Service (MMDS)•Multichannel multipoint distribution service (MMDS) –Fixed broadband wireless ... GHz•Architecture–Cells (like a cellular telephone system)–LMDS is a fixed wireless technology for buildings7Last Mile Wireless Connections•Microwaves are higher frequency RF waves–In the ... band•Microwave towers are installed roughly 35 miles (56 kilometers) apart from each other•Fixed wireless – Wireless as the last mile connection for buildings•Backhaul connection–Company’s internal...
... latitudes–Orbits typically have a 24-hour period30Satellite Transmissions (continued)26Satellite Broadband Wireless •Use of satellites for personal wireless communication is fairly recent•Satellite ... (J2ME) –Subset of Java specifically developed for programming wireless devices•BREW is a runtime environment that resides on a wireless device13Second Generation Cellular Telephony•Second ... 1xRTT networks25Binary Runtime Environment for Wireless (BREW)•BREW is a thin software environment–Very small program that resides on a wireless device •Capable of running applications...
... additional hours each day2Objectives•List the advantages of wireless communications for businesses•Discuss the challenges of wireless communications7Data Availability Around the Clock• Wireless ... and maintenance costs Wireless Communications Wireless Communications in Business11Summary• Wireless technology can positively impact an organization in many ways• Wireless technology faces ... 9Voice over Wireless LAN (VoWLAN)•VoWLAN–Takes advantage of Voice over IP (VoIP) technology–Uses wireless infrastructure to carry voice and data• Wireless VoIP phones–Telephone...
... the TCP segments. Whyin your opinion?2 Other wireless technologies: Bluetooth and 802.11a2.1 BluetoothBluetooth is one of technologies allows setting up a WPAN (Wireless Personal AreaNetwork). ... the performances ofTCP in wireless environments in?4. Another series of proposals consists of cutting the TCP connection into two betweenthe wire network and the wireless link? For this approach ... of five timeintervals to emit.1MOB TME - Other aspects of wireless The layer transport - Bluetooth - Wifi Security1. TCP and wireless environments1. Remind the operation principle of the...