Linksys WPC54GR manual What is DSSS? What is FHSS? And what are their differences?, What is WEP?

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Wireless-G Notebook Adapter with RangeBooster

the right frequency, a spread-spectrum signal looks like background noise. There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).

What is DSSS? What is FHSS? And what are their differences?

Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears to be short-duration impulse noise. Direct-Sequence Spread- Spectrum (DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The longer the chip, the greater the probability that the original data can be recovered. Even if one or more bits in the chip are damaged during transmission, statistical techniques embedded in the radio can recover the original data without the need for retransmission. To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers.

What is WEP?

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a shared key algorithm, as described in the 802.11 standard.

What is WPA?

WPA is Wi-Fi Protected Access, a wireless security protocol that can be used in conjunction with a RADIUS server.

What is RADIUS?

RADIUS is Remote Authentication Dial-In User Service, which uses an authentication server to control network access.

Appendix A: Troubleshooting

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Frequently Asked Questions

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Contents Wireless- G How to Use this User Guide Copyright and TrademarksWord definition Table of Contents Wireless-G Notebook Adapter with RangeBooster Front Panel List of Figures10 Import a Profile Adapter a device that adds network functionality to your PC IntroductionWelcome What’s in this User Guide?Introduction What’s in this User Guide? Topology the physical layout of a network Planning your Wireless NetworkNetwork Topology RoamingNetwork Layout Link Getting to Know the Wireless-G Notebook AdapterLED Indicators PowerStarting the Setup Setting up and Connecting the Wireless-G Notebook AdapterSetting up the Adapter Connecting the AdapterWEP Key Needed for Connection Congratulations 10 Network Settings Manual SetupWEP PSK2 WPA PersonalEAP-TLS WPA EnterpriseRadius 19 Confirm New Settings Link Information Using the Wireless Network MonitorAccessing the Wireless Network Monitor Wireless Network Status screenWireless Network Status More Information-Network Statistics Wireless Network StatisticsSite Information Site SurveyProfile Information Profiles12 Create a New Profile Create a New ProfileWPA Personal Needed for Connection 13 Available Wireless Network 15 Wireless Mode 17 Wireless Security WEP 19 Wireless Security PSK2 EAP-TLS 22 Wireless Security Radius Using EAP-TLS 25 Congratulations Appendix a Troubleshooting Common Problems and SolutionsWireless-G Notebook Adapter does not work properly What 802.11b features are supported? Frequently Asked QuestionsWhat is the 802.11b standard? What is the Ieee 802.11g standard?What is Spread Spectrum? What is infrastructure mode?What is roaming? What is ISM band?What is RADIUS? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is WPA?Windows XP Wireless Zero Configuration Appendix B Windows XP Wireless Zero ConfigurationFigure 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 Notebook Adapter with RangeBooster Appendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix E Glossary Wireless-G PCI Adapter with SpeedBooster Wireless-G PCI Adapter with SpeedBooster Wireless-G PCI Adapter with SpeedBooster Wireless-G PCI Adapter with SpeedBooster 802.11g Ofdm Appendix F SpecificationsLimited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationWireless-G Notebook Adapter with RangeBooster Wireless-G Notebook Adapter with RangeBooster Wireless-G Notebook Adapter with RangeBooster Wireless-G Notebook Adapter with RangeBooster Wireless-G Notebook Adapter with RangeBooster Appendix I Contact Information