Channel utilizing method and system for wireless networks

A channel utilizing system for a wireless network, said channel utilizing system being adapted for channel selection by a wireless network device having a number (N) of transceivers in an environment with a number (M) of channels, wherein (N)<(M), said channel utilizing system comprising:

• a calculating unit for calculating a channel weight set, and for calculating a channel stay-in period;
• a channel selecting unit for selecting one of the (M) channels according to the channel weight set;
• a notify mechanism processing unit including a notify mechanism selecting module and a notifying module,
• said notify mechanism selecting module selecting a notify mechanism according to a relation between the wireless network device and a second wireless network device,
• said notifying module using the notify mechanism to notify the second wireless network device of a current state of the wireless network device;
• and
• a control unit for controlling the time the wireless network device stays in the selected one of the channels according to the channel stay-in period.