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Changes between Version 7 and Version 8 of UserDocs/AntennaDiversity

Author:
p0g0 (IP: 0.0.0.0)
Timestamp:
06/22/06 23:00:54 (13 years ago)
Comment:

NG Redaction

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  • UserDocs/AntennaDiversity

    v7 v8  
    11= Antenna Diversity = 
    22 
    3 Antenna diversity is the term used when the receiver and transmitter use multiple antennas in order to improve the quality of reception/transmission. Most Atheros radios have two antenna connectors which allows you to connect two antennas. Two antennas can be beneficial in a number of scenarios. One typical scenario is called polarization diversity. For example, most laptops have two small dipole antennas oriented differently because as you move around with the laptop one or the other antenna may "line up" better with the access point antenna polarization. There is also spatial diversity which exploits the fact that sometimes two antennas spaced more than a few (~10) wavelengths apart have different reception conditions due to reflections or fading, or other effects. 
     3Antenna diversity is the term used when the receiver and transmitter use multiple antennas in order to improve the quality of reception/transmission. Many Atheros radios have two antenna connectors which allows you to connect two antennas (NB:  MadWifi does not yet support MIMO, the 3+ antenna array devices). Two antennas can be beneficial in a number of scenarios. One typical scenario is called polarization diversity. For example, most laptops have two small dipole antennas oriented differently because as you move around with the laptop one or the other antenna may "line up" better with the access point antenna polarization. There is also spatial diversity which exploits the fact that sometimes two antennas spaced more than a few (~10) wavelengths apart have different reception conditions due to reflections or fading, or other effects. 
    44 
    55== Receiver diversity ==