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Parameter Description
802.11a 5 GHz Orthogonal Frequency Division Multiplexing (OFDM) with data rates up to 54 Mbps.
802.11a/b/g + n Mixed-mode radio type which allows for simultaneous use of 802.11b/g and 802.11n traffic on the 2.4 GHz
frequency band, and 802.11a and 802.11n traffic on the 5 GHZ frequency band.
802.11b/g + n Mixed-mode radio type that allows for simultaneous use of 802.11b/g and 802.11n traffic on the 2.4 GHz
frequency band.
802.11a + n Mixed-mode radio type that allows for simultaneous use of 802.11a and 802.11n traffic on the 5 GHz
frequency band.
Design Model
Three radio buttons, defined in Table 372, allow you to control the kind of model used to determine the number and
type of APs.
Radio
Button
Description
Coverage Use this option to let RF Plan automatically determine the number of APs based on desired data
rates and the configuration of your building.
The higher the data rate, the smaller the coverage area, and the more APs that are required.
Coverage is the most common type of installation.
Capacity Use this option to let RF Plan determine the number of APs based on the total number of users,
ratio of users to APs, and desired data rates.
Capacity-based coverage is useful for high capacity conference or training rooms, where the
APs could have a high volume of users.
Custom Use this option to specify a fixed number of APs.
Custom coverage is useful for deployments with a known number of APs or if you have a fixed
project budget.
Table 372:
Design Model Radio Buttons
Overlap Factor
The Overlap Factor is the amount of signal area overlap when the APs are operating. Overlap is important if an AP
fails as it allows the network to self-heal with adjacent APs powering up to assume some of the load from the failed
device. Although there may be no holes in coverage in this scenario, there is likely to be a loss of throughput.
Increasing the overlap allows for higher throughputs when an AP has failed and allows for future capacity as the
number of users increases.
You can select a pre-determined value from the drop-down overlap menu or specify a value in the text box to the left
of the drop-down. The following table describes the available options.
Overlap
Factor
Description
100% Low Use this option for buildings that contain open spaces such as warehouses.
Table 373:
Overlap Factor Values
DellPowerConnectW-SeriesArubaOS6.2 | User Guide RF Plan | 801