User's Manual
Table Of Contents
- Table of Contents
- Introduction
- GO Wireless LAN Pico Base Station (WLP)
- Installation
- Configuring the WLP
- Connect and Access the WLP
- Configuring the Management Connectivity
- Configuring the Device Prompt
- Configuring the Radio Settings
- Configuring Multiple SSIDs
- Deleting an SSID
- Configuring the Mesh Network
- Configuring WDS CPE connection
- Configuring Authentication Types
- Configuring the Radius Client in the WLP
- Configuring Privacy Methods
- Saving the Configuration
- WLP Configuration Example
- Upgrading the WLP Software
- Appendix A: List of Acronyms
- Appendix B: Wiring Specifications
- Page 24 of 38 -
All contents are Copyright © 2006 GO Networks, Inc. All rights reserved.
Setting the Radio Sensitivity
The range and capacity of the WLP device is highly dependent upon its RX
sensitivity. RX sensitivity is measured in dBm. A large negative number
(as example -101dBm) is considered high sensitivity, while a smaller
number (as example -90dBm) is considered low sensitivity.
A high sensitivity will result in an increased range along with higher
susceptibility to noise/interference. The higher noise susceptibility will
result in lower throughputs.
A low sensitivity will result in a reduced range with lower susceptibility to
noise. The lower noise susceptibility will result in higher throughputs.
Clearly, when setting the device sensitivity the user has to compromise
range verses capacity.
The amount of noise in the system can be monitored by the Viewer or by
the following CLI command:
show interface wifi-load-ratio
Figure 14 displays a printout of the wifi-load-radio command. In this
example on the Dot11Radio the air is currently occupied at 15% of the
time. Out of these 15%, 1% was used to transmit WLAN packets and 8%
of the time was used to receive packets. Note that packets are received
from all WLAN devices at your current frequency. Therefore, a large
amount of the RX air time might be taken by neighboring networks. The
remaining 6% (i.e. 15-8-1=6) is the amount of air time occupied by non-
WLAN signals. These 6% are what we call noise.
go> show interface wifi-load-ratio
-------------------------------------------------------------------------------
|Interface Name |Clear Count Ratio |Rx Frame Count |Tx Frame Count
|--------------------|--------------------|--------------------|---------------
|Dot11Radio0 |15 |8 |1
|....................|....................|....................|...............
|BHRadio0 |12 |9 |3
-------------------------------------------------------------------------------
go>
Figure 14: WiFi Load Printout
By default, the 802.11b/g channel is set to automatically adjust the
interface sensitivity to the noise level in the air. Noise levels of up to 15%
are considered normal. If the amount of noise exceeded this level, you
should consider changing a channel or lowering the sensitivity.