Linksys WMP54GR manual What is DSSS? What is FHSS? And what are their differences?, What is WEP?

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Wireless-G PCI Adapter with RangeBooster

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 the receiver knows the parameters of the spread-spectrum signal being broadcast. If a receiver is not tuned to 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.

Would the information be intercepted while transmitting on air?

The Adapter features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. On the software side, the Adapter offers the encryption function (WEP) to enhance security and access control.

What is WEP?

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

IEEE 802.11 standard. For more information, refer to “Appendix C: Wireless Security.”

What is WPA?

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

For more information, refer to “Appendix C: Wireless Security.”

What is RADIUS?

RADIUS is Remote Authentication Dial-In User Service, which uses an authentication server to control network access. For more information, refer to “Appendix C: Wireless Security.”

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 Setup Wizard’s License Agreement Setup Wizard’s Welcome Screen10 Import a Profile Introduction WelcomeAdapter a device that adds network functionality to your PC What’s in this Guide? Wireless-G PCI Adapter with RangeBooster Topology the physical layout of a network Planning your Wireless NetworkNetwork Topology RoamingNetwork Layout Setup Wizard’s License Agreement Starting the SetupSetting up the Adapter Connecting the AdapterEncryption encoding data transmitted in a network WEP Key Needed for ConnectionCongratulations 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 SurveyWPA-Personal Needed for Connection Profile Information Profiles12 Create a New Profile Create a New ProfileWPA Personal Needed for Connection 13 Available Wireless Network Wpa wi-fi protected access a wireless security protocol Using Tkip Temporal Key Integrity Protocol encryptionWhich can be used in conjunction with a Radius server 17 Wireless Security WEP 19 Wireless Security PSK2 EAP-TLS 22 Wireless Security Radius Using EAP-TLS 25 Congratulations Common Problems and Solutions Appendix a TroubleshootingWhat Ieee 802.11b features are supported? Frequently Asked QuestionsWhat is the Ieee 802.11b standard? What is the Ieee 802.11g standard?What is ISM band? What is ad-hoc mode?What is infrastructure mode? What is roaming?What is RADIUS? What is DSSS? What is FHSS? And what are their differences?What is WEP? What is WPA?Select Use Linksys Wireless Network Monitor Appendix B Using Windows XP Wireless 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 PCI Adapter with RangeBooster Appendix D Windows Help Shared ResourcesNetwork Neighborhood/My Network Places Appendix E Glossary Wireless-G PCI Adapter with RangeBooster Wireless-G PCI Adapter with RangeBooster Appendix F Specifications Protocols802.11g Ofdm Storage Temp Operating HumidityStorage Humidity Limited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationWireless-G PCI Adapter with Range Booster Wireless-G PCI Adapter with Range Booster Wireless-G PCI Adapter with Range Booster Wireless-G PCI Adapter with Range Booster Wireless-G PCI Adapter with Range Booster Appendix I Contact Information
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