MicroNet Technology SP907NL What is Spread Spectrum?, What is WMM?, What is WMM Power Save?

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13. What is Spread Spectrum?

Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communication 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 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).

14. What is WMM?

Wi-Fi Multimedia (WMM), a group of features for wireless networks that improve the user experience for audio, video and voice applications. WMM is based on a subset of the IEEE 802.11e WLAN QoS draft standard. WMM adds prioritized capabilities to Wi-Fi networks and optimizes their performance when multiple concurring applications, each with different latency and throughput requirements, compete for network resources. By using WMM, end-user satisfaction is maintained in a wider variety of environments and traffic conditions. WMM makes it possible for home network users and enterprise network managers to decide which data streams are most important and assign them a higher traffic priority.

15. What is WMM Power Save?

WMM Power Save is a set of features for Wi-Fi networks that increase the efficiency and flexibility of data transmission in order to conserve power. WMM Power Save has been optimized for mobile devices running latency-sensitive applications such as voice, audio, or video, but can benefit any Wi-Fi device. WMM Power Save uses mechanisms included in the IEEE 802.11e standard and is an enhancement of IEEE 802.11 legacy power saves. With WMM Power Save, the same amount of data can be transmitted in a shorter time while allowing the Wi-Fi device to remain longer in a low-power “dozing” state.

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Contents User’s Manual 11n Wireless LAN USB Adapter Model No. SP907NL Table of Contents Chapter Troubleshooting Glossary Package Contents Key FeaturesSafety Information System RequirementsSpecifications Data RateLink/Activity USB AdapterLED Indication Configuration Drivers InstallationPage Operating Configuration Utility Page Scan for Other Wireless Devices Ssid Connect to Access Point Page Page Add Access Point to Profile Profile Name Tx PowerPower Save Mode Network TypeEncryption AuthenticationShow Password WPA Preshared KeyEAP Method Tunnel AuthenticationID \ Password Tab Client CertificationUsing Windows Zero Configuration Click Network Connections Page Profile Management Add a Profile Edit a ProfileDelete an Existing Profile Activate a Profile Advanced Settings Enable CCX View Network StatisticsWMM Power Save WMM SettingWMM Enable EnableWPS Configuration WPS Setup PBC Push-Button ConfigurationPage WPS Setup PIN WPS probe IE Radio On/OffWPS associate IE AutoAbout Switch to AP Mode and Basic Configuration Soft-AP FunctionPage Security Setting Use Mac AddressSecurity Setting WPA Pre-shared Key Authentication TypeEncryption Type Group Rekey IntervalAccess Control WEP KeyMAC Table Statistics Power Saving ModeEvent Log StatusAbout Page When I click ‘Launch Wireless access pointWireless device Config utilities’What does Ieee 802.11 feature support? What is the Ieee 802.11g standard?What is the Ieee 802.11b standard? What is BSS ID? What is Ad-hoc?What is Infrastructure? What is WEP?What is DSSS? What is FHSS? What are their differences? What is AES?Can Wireless products support printer sharing? What is WMM Power Save? What is Spread Spectrum?What is WMM? What is GI? What is STBC?