SmartBridges sB3412 manual Performance Parameters and Bandwidth Controller

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

3. Performance Parameters and Bandwidth Controller

This chapter gives instructions for editing the wireless radio protocol parameters to optimize radio performance and changing the Bandwidth Controller. These procedures are the same for all the three modes.

3.1. Link Performance Parameters and Features

The radio protocol parameters are:

￿￿Fragment Length (between 256 and 2346) ￿ RTS/CTS (between 256 and 2346)

￿ RSSI Threshold (between -90 and -20) ￿ Throughput Optimizer

￿ Frame Bursting ￿ Piggy Back

Table 3-1 Radio Performance Parameters

Page Item	Descriptions
	a) Show current value
	b) Change to a value within its range
	This setting determines the size at which packets are fragmented. If the frame
Fragment Length	that the access point is transmitting is larger than the threshold, it will trigger the
	fragmentation function.
	The use of fragmentation can increase the reliability of frame transmissions.
	Because smaller frames are being sent, collisions are much less likely to occur.
	The range of its value is from 256 to 2346. The default value is 2346 bytes.
	a) Shows current value
	b) Change value
	RTS: Request To Send	CTS: Clear To Send
RTS/CTS Length	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
	the hidden stations.
	The range of its value is from 256 to 2346. The default value is 2346 bytes.
RSSI Threshold	This function provides better performance in higher noise area. The device will
	ignore any signal below the set RSSI threshold.
	The default value is -90. The range of its value if from -90 to -20.

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