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Multi-channel MAC protocols gains very much importance because of the necessity to enhance the network capacity of wireless networks. Existing MAC protocols rarely exploit the non-interfering multiple channels of 802.11 standard. This paper evaluates a channel allocation method which improves the overall throughput of 802.11 MAC. This method reduces collision considerably, by allowing each node to...
In wireless Media Access Control (MAC) environment, management of channel access and controlling of packet transmission is done via shared channel in a distributed way. MAC protocols objectives for Wireless Network is to maximize channel utilization and minimizing channel access delay. It is MAC protocol's responsibility to provide best possible utilization of provided bandwidth while fulfilling the...
Wireless sensor networks (WSNs) are large networks comprised of small sensor nodes, which are capable of sensing data from the surrounding environment, and forwarding the data collected from other sensor nodes to the sink. For energy efficient operation of WSNs, considerable research has been going on in the area of Medium Access Control (MAC) protocol design. The IEEE 802.15.4 MAC has been designed...
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