Linksys WMP54GX manual What is ad-hoc mode?, What is infrastructure mode?, What is roaming?

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Wireless-G PCI Adapter with SRX

What is ad-hoc mode?

When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other. The ad-hoc wireless network will not communicate with any wired network.

What is infrastructure mode?

When a wireless network is set to infrastructure mode, the wireless network is configured to communicate with a wired network through a wireless access point.

What is roaming?

Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point. Before using the roaming function, the workstation must make sure that it is the same channel number with the access point of dedicated coverage area.

To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message. Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes. In such a system, the user’s end node undertakes a search for the best possible access to the system. First, it evaluates such factors as signal strength and quality, as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone. Based on that information, the node next selects the right access point and registers its address. Communications between end node and host computer can then be transmitted up and down the backbone.

As the user moves on, the end node’s RF transmitter regularly checks the system to determine whether it is in touch with the original access point or whether it should seek a new one. When a node no longer receives acknowledgment from its original access point, it undertakes a new search. Upon finding a new access point, it then re-registers, and the communication process continues.

What is ISM band?

The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

What is Spread Spectrum?

Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In other words, more bandwidth is consumed than in the case of narrowband transmission, but the trade-off produces a signal that is, in effect, louder and thus easier to detect, provided that

Appendix A: Troubleshooting

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Frequently Asked Questions

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Contents 802 GHz .11g Wireless- G How to Use This User Guide Copyright and TrademarksWord definition Table of Contents Wireless-G PCI Adapter with SRX Adapter’s Connectors for the Antenna Cables Adapter’s LEDWPA2-Personal Needed for Connection What’s in This User Guide? IntroductionWelcome Adapter a device that adds network functionality to your PCIntroduction What’s in This User Guide? Roaming Planning Your Wireless NetworkNetwork Topology Topology the physical layout of a networkNetwork Layout Cable Connectors Getting to Know the Wireless-G Notebook Adapter with SRXLED Indicator OverviewStarting the Setup Wizard Setup Wizard’s Welcome ScreenInstalling the Adapter Windows will begin copying the files onto your PCSetting Up the Adapter Available Wireless Network ScreenSetting Up the Adapter with an Available Network WEP Key Needed for ConnectionWPA-Personal Needed for Connection Setting Up the Adapter with Manual Setup 12 Available Wireless Network Screen14 Wireless Mode Screen WEP 19 Wireless Security WPA2 Personal Screen EAP-TLS Radius 23 Confirm New Settings Screen Wireless Network Status screen Using the Wireless Network MonitorAccessing the Wireless Network Monitor Link Information ScreensWireless Network Status More Information Wireless Network Status ScreenWireless Network Statistics More Information Wireless Network Statistics ScreenSite Survey Site InformationWPA2-Personal Needed for Connection Profiles Profiles ScreenCreating a New Profile 12 Create a New Profile14 Available Wireless Network Screen 16 WPA-Personal Needed for Connection 20 Network Settings Screen 21 Wireless Mode Screen 24 Wireless Security Screen 27 Wireless Security WPA2 Personal Screen 28 Wireless Security WPA Enterprise Using EAP-TLS Screen Radius 32 Congratulations Screen Appendix a Troubleshooting Common Problems and SolutionsWireless-G PCI Adapter does not work properly What is the Ieee 802.11g standard? Frequently Asked QuestionsWhat is the Ieee 802.11b standard? What Ieee 802.11b features are supported?What is roaming? What is ad-hoc mode?What is infrastructure mode? What is ISM band?What is WPA? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is RADIUS?Appendix B Using Windows XP Wireless Zero Configuration Figure B-1 Wireless Network Monitor IconFigure B-4 Available Wireless Network Figure B-6 Network Connection Wireless Security Appendix C Wireless Security Security PrecautionsSecurity Threats Facing Wireless Networks Appendix C Wireless Security Wireless-G PCI Adapter with SRX Appendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix E Glossary Wireless-G PCI Adapter with SRX Wireless-G PCI Adapter with SRX Appendix F Specifications Operating Temp Storage TempOperating Humidity Max % Non-Condensing Storage Humidity Appendix G Warranty Information Limited WarrantyAppendix H Regulatory Information FCC StatementSafety Notices Appendix I Contact Information
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