XMax
Encyclopedia
xMax developed by xG Technology, Inc. is a cognitive radio
Cognitive radio
A cognitive radio is a kind of two-way radio that automatically changes its transmission or reception parameters, in a way where the entire wireless communication network -- of which it is a node -- communicates efficiently, while avoiding interference with licensed or licensed exempt users...

 based mobile VoIP
Mobile VoIP
Mobile VoIP or simply mVoIP is an extension of mobility to a Voice over IP network. Two types of communication are generally supported: cordless/DECT/PCS protocols for short range or campus communications where all base stations are linked into the same LAN, and wider area communications using...

 and data system operating in the license-free ISM 900MHz band (902-928MHz). xMax is built upon an end-to-end Internet Protocol
Internet Protocol
The Internet Protocol is the principal communications protocol used for relaying datagrams across an internetwork using the Internet Protocol Suite...

 (IP) system infrastructure that includes a line of base stations, mobile switching centers (MSC), handsets, and modems.

On Sept. 22, 2009, VoIP industry expert Rich Tehrani test drove the xMax mobile VoIP pilot network operated by the company in Fort Lauderdale, FL. His recent article, published on TMCnet on (referenced below) concluded: “xMax worked well and is real. When you realize that this company may have found a way to take a frequency riddled with wireless garbage and turn it into a fully functioning wireless voice and data network you start to see how much of a game changer this could be for the wireless industry.”

Some current performance claims

  • Antenna: commercially off the shelf antenna

  • Range: typically 2-5 miles depending upon tower height and terrain.

  • Data rate: 18 Mbps per basestation

  • Spectrum used: Unlicensed 902-928 Mhz band

  • Interference: Ability to accept interference found on 902-928 MHz band

  • Power: Less than 1 W

See also

  • mobile VoIP
    Mobile VoIP
    Mobile VoIP or simply mVoIP is an extension of mobility to a Voice over IP network. Two types of communication are generally supported: cordless/DECT/PCS protocols for short range or campus communications where all base stations are linked into the same LAN, and wider area communications using...

  • cognitive radio
    Cognitive radio
    A cognitive radio is a kind of two-way radio that automatically changes its transmission or reception parameters, in a way where the entire wireless communication network -- of which it is a node -- communicates efficiently, while avoiding interference with licensed or licensed exempt users...

  • software defined radio
  • radio frequency
    Radio frequency
    Radio frequency is a rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals...

  • radio spectrum
    Radio spectrum
    Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz ....


External links

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