SmartBridges sB3021 - Manual (Page 73)

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i n t e l l i g e n t w i r e l e s s p l a t f o r m
airHaul 2 Nexus PRO™ User Guide
Page Item Descriptions
Default value is 2346 bytes. The range of value is from 256 to 2346.
RTS/CTS Length
a) Shows current value
b) Changes value
RTS: Request To Send CTS: Clear To Send
The RTS/CTS length determines the packet size at or larger than the
set value. The radio issues a request to send (RTS) before sending
the packet.
The primary reason for implementing RTS/CTS is to minimize
collisions among hidden stations.
Default value is 2346 bytes. The range of value is from 256 to 2346.
RSSI Threshold
This function provides better performance in high noise area. The
device will ignore any signal below the set RSSI threshold.
The default value is -90.
The value ranges from -90 to -20.
Preamble Settings
a) Shows current value
b) Chooses other settings available in the dropdown menu
The radio preamble is a section of data at the head of a packet that
contains information the Root Device and Remote devices need
when sending and receiving packets.
The dropdown menu allows the user to select a long, short or
dynamic radio preamble. The default is dynamic.
Long: a long preamble provides a stable link
Short: a short preamble improves throughput performance. But it only
allows short preamble capable Remotes to be associated.
Dynamic: a dynamic preamble allows mixing of short and long
preambles
Distance
The appropriate distance between the Root and the Remote devices
needs to be configured for best results.
The range of the link, which corresponds to the ACK window size.
Frame Bursting
Short 802.11g packets can be unwrapped and rebundled into a larger
packet to reduce the impact of mandatory gaps between the packets.
This increases the speed of the 802.11g based wireless networks.
Frame bursting is sometimes also called “packet bursting”.
Concatenation
The benefit of concatenation is that it increases the throughput by
removing overheads from “extra” frames and interframe latencies.
Piggy Back
Piggy Back is a performance boosting feature which increases the
effective transmission speed with no intervention.