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IEEE 802.11n-2009 is an amendment to the IEEE 802.11-2007 wireless networking standard to improve network throughput over the two previous standards-802.11a and 802.11g-with a significant increase in the maximum raw data rate from 54 Mbit/s to 600 Mbit/s with the use of four spatial streams at a channel width of 40 MHz.
802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g and 802.11n versions to provide wireless connectivity in the home, office and some commercial establishments.
This book is your ultimate resource for 802.11n. Here you will find the most up-to-date information, analysis, background and everything you need to know.
In easy to read chapters, with extensive references and links to get you to know all there is to know about 802.11n right away, covering: IEEE 802.11n-2009, IEEE 802.11, 125 High Speed Mode, IEEE 802.11 (legacy mode), 802.11 non-standard equipment, IEEE 802.11a-1999, Wireless access point, Yota Egg, AEGIS SecureConnect, Announcement Traffic Indication Message, Arbitration inter-frame spacing, Block acknowledgement, IEEE 802.11b-1999, Beacon frame, CALM M5, Capwap, Carrier sense multiple access with collision avoidance, CCMP, Complementary code keying, DCF Interframe Space, Distributed coordination function, IEEE 802.11d-2001, Direct-sequence spread spectrum, Exposed node problem, Extended interframe space, IEEE 802.11e-2005, Frame aggregation, IEEE 802.11g-2003, Hidden node problem, IEEE 802.11h-2003, IEEE 802.11i-2004, IEEE 802.11ac, Information Element, Inter-Access Point Protocol, IEEE 802.11j-2004, IEEE 802.11k-2008, Line-of-sight propagation, List of WLAN channels, Lorcon, MeshBox, Nitro (wireless networking), IEEE 802.11p, PCF Interframe Space, Point coordination function, Power control, IEEE 802.11r-2008, Reduced Interframe Space, Received Channel Power Indicator, Received signal strength indication, Regdomain, Roofnet, IEEE 802.11 RTS/CTS, IEEE 802.11s, Short Interframe Space, Super G (wireless networking), Temporal Key Integrity Protocol, TU (Time Unit), IEEE 802.11u, IEEE 802.11v, IEEE 802.11w-2009, Wi-Fi operating system support, Wi-Fi Protected Access, Wired Equivalent Privacy, Wireless Distribution System, World-Wide Spectrum Efficiency, Xpress technology, IEEE 802.11y-2008
This book explains in-depth the real drivers and workings of 802.11n. It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of 802.11n with the objectivity of experienced professionals.
A help desk is an information and assistance resource that troubleshoots problems with computers or similar products. Corporations often provide help desk support to their customers via a toll-free number, website and/or e-mail. There are also in-house help desks geared toward providing the same kind of help for employees only. Some schools offer classes in which they perform similar tasks as a help desk. In the Information Technology Infrastructure Library, within companies adhering to ISO/IEC 20000 or seeking to implement IT Service Management best practice, a help desk may offer a wider range of user centric services and be part of a larger Service Desk.
This book is your ultimate resource for Help desk. Here you will find the most up-to-date information, analysis, background and everything you need to know.
In easy to read chapters, with extensive references and links to get you to know all there is to know about Help desk right away, covering: Help desk, Attitudinal analytics, Brand community, Business Augmentation Services, Catriona Campbell, ClickTale, COPC Inc., Customer Data Integration, Customer dynamics, Customer experience, Customer experience analytics, Customer experience systems, Customer experience transformation, Customer Feedback Management services, Customer insight, Customer Integrated System, Customer intelligence, Customer interaction management, Customer intimacy, Customer involvement management, Customer lifecycle management, Customer reference program, Customer relationship management, Customer service, Customer service training, Demand chain, Enterprise relationship management, Extended Relationship Management, Facing (retail), Foviance, House call, Incentive program, Kampyle (Software), Lead scoring, Music on hold, National Asset Recovery Services, Outsourcing relationship management, Product support, Quality Assurance in Public Transport, Relationship Management Application (RMA), Sales process engineering, Saveology.com, Service rate, Social CRM, Speech analytics, Customer support, SWIFTNet InterAct Realtime, SWIFTNet InterAct Store and Forward, Tealeaf, Technical support, The International Customer Service Institute, Touchpoint, Usability Sciences, AetherPal, Bug tracking system, Comparison of help desk issue tracking software, Comparison of issue-tracking systems, Computer-aided maintenance, EHelp Corporation, FIT Issue Management, GLPI, GWI Software, HEAT (software), Help desk humor, Helpdesk and incident reporting auditing, IssueNet, ISupport, Kayako, Knowledge Centered Support, KnowledgeBase Manager Pro, Liberum Help Desk, Mojo Helpdesk, OTRS, Remote network support, SimpleDesk, Supportworks, Virtual help desk, Web Help Desk
This book explains in-depth the real drivers and workings of Help desk. It reduces the risk of your technology, time and resources investment decisions by enabling you to compare your understanding of Help desk with the objectivity of experienced professionals.
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