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300-425 · Question #27

An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with -67 dBm signal level for optimal VoWLAN design?

The correct answer is D. 24 Mbps on 802.11 an. Coverage cells can be created for specific data rates. For a high density deployment or a deployment where a large number of calls are required within a small floor space, 802.11ac is recommended because of the number of channels and the 54 Mbps data rate. The lower data rates…

Wireless Design

Question

An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with -67 dBm signal level for optimal VoWLAN design?

Options

  • A6 Mbps on 802.11 bgn
  • B24 Mbps on 802.11 bgn
  • C12 Mbps on 802.11 an
  • D24 Mbps on 802.11 an

How the community answered

(55 responses)
  • A
    2% (1)
  • B
    4% (2)
  • D
    95% (52)

Explanation

Coverage cells can be created for specific data rates. For a high density deployment or a deployment where a large number of calls are required within a small floor space, 802.11ac is recommended because of the number of channels and the 54 Mbps data rate. The lower data rates in 802.11ac can be disabled, the 24 Mbps data rate can be set to required, while the 36 to 54 Mbps data rates can be left enabled.

Topics

#VoWLAN design#minimum data rate#signal threshold#802.11a/n

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