Aimee Howard, Daniel Parker, Chris Ridenour, Paul Michael Santos, Naila Syed

1
IEEE 802.11 Wireless Microphone System II
Aimee Howard, Daniel Parker, Chris Ridenour, Paul
Michael Santos, Naila Syed
arhoward_at_student.utdallas.edu, dkp031000_at_utdallas.
edu, car3032000_at_utdallas.edu, pms052000_at_utdallas.
edu, nsyed_at_student.utdallas.edu
Department of Electrical Engineering Erik Jonsson
School of Engineering Computer
Science University of Texas at Dallas Richardson,
Texas 75083-0688, U.S.A.
PROJECT GOALS
PROJECT RESULTS

• Design a wireless microphone that will transmit
  over the frequencies available to the IEEE 802.11
  standard.
• Allow the user to control, through his/her voice,
  any household equipments connected to a Wi-Fi
  enabled device in the entire house.

• Through the use of the wireless microphone, the
  smart home system will allow the user to control,
  through his/her voice, any household equipment in
  the entire house connected to a Wi-Fi enabled
  device, thus truly creating a smart home.

• The wireless microphone will allow the user to
  completely interact with the house. The server
  and the router is configured for all the
  microphones and server using unique IP addresses.
  This will allow the server to recognize and
  respond appropriately to the users needs. Since
  each microphone would be having its own
  individual IP address, the server will be able to
  locate the room the voice is coming from and use
  its voice recognition software to output the
  command required.

PROJECT OVERVIEW
DESIGN

• The voice control system receives the signals
  transmitted from the wireless microphone and
  decode it using voice recognition software and
  forwarding the command to the desired intelligent
  device.

• The voice signal is gained through the analog
  microphone
• Once the signal is encountered, the A/D
  converter will acquire input signal and convert
  the analog signal to binary numbers
• A/D converter digitizes the signal and sends
  them to IEEE 802.11 transceiver
• The transceiver packetizes the bits and uplinks
  the data packets to the network
• The receiver transforms the packets back to
  analog format with D/A converter to use it in
  order to operate household appliances.

• In order to provide security, privacy and to
  prevent unauthorized access to network resources,
  the use of Wired Equivalent Privacy (WEP) keys
  and Service Set Identifier (SSID) will be added
  to the approached alternatively. The WEP key will
  function as control access.
• The client that has incorrect WEP key is not
  able to send data or received data from an access
  point. On the other hand, the SSID allows
  divisions of Wireless Local Networks (WLANs)
  where a certain client must be configured with
  correct SSID to obtain access to WLANs.

PROJECT CONCLUSION

• This type of microphone will allow the user and
  network to go where wires cannot.
• It involves the absence of wire networking
  infrastructure. Its output depends on the voice
  input to control household appliances. The data
  is sent over IEEE 802.11 from PCs via wireless
  PCI cards then is received and transmitted from
  certain access points.
• The team will conduct research on different
  applications of IEEE 802.11 and how its
  configurations can be easily changed to meet the
  needs of the user as well as encryption
  techniques for secure data transmission.