Patent ID: 8155099
Filing Date: 2012-04-10
Classification: H04W

Abstract:
1. A method of operating wireless devices, the method comprising the steps of: providing a plurality of sender nodes each having a respective message to wirelessly send to a receiver node; assigning a probability distribution to a plurality of frequency channels such that a respective probability of selection is assigned to each said frequency channel; assigning a priority to each of the frequency channels based on the channel selection probability such that the channels with smaller probability of selection are assigned higher priority level; stochastically selecting a respective said frequency channel for each of the sender nodes according to the probability distribution; wirelessly sending the messages from the sender nodes to the receiver node in the selected frequency channels; using the receiver node to sample a first one of the frequency channels with the highest priority; if the receiver node sensed a signal in the first frequency channel during the sampling, tuning the receiver node to the first frequency channel and receive a remainder of the message on the first channel; and if the receiver node sensed no signal in first frequency channel, using the receiver node to sample a second one of the frequency channels with lower priority level.