Adaptive adjustment of backoff times in wireless network...

Details Adaptive adjustment of backoff times in wireless network... Adaptive adjustment of backoff times in wireless network...

2007-04-24

2007-04-24

Shah, Chirag G. (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S345000, C370S348000, C370S445000

Reexamination Certificate

active

10304973

ABSTRACT:
A wireless network, including a plurality of network elements such as a wireless access point (9), and computer stations (2, 4, 6), is disclosed. The wireless network operates so that each network element (2, 4, 6, 9) waits for a pseudo-randomly selected duration, after the end of a frame on the channel, before initiating transmission. One of the network elements, such as the wireless access point (9), measures the performance of the network over a measurement period (T), and adjusts a minimum value of the upper limit of the range from which the random duration is selected, according to the performance of the network over the measurement period. The times measured may be the successful transmission time (Ts), which is maximized in adjusting the minimum value, or the idle and collision times (T1, Tc), which are equated in the optimization of the minimum value.

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