On Enhancing the Performance of Capacity of Ad Hoc Wireless Networks Using Directional Antennas

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Provided by: International forum of researchers Students and Academician
Topic: Networking
Format: PDF
The capacity of ad hoc wireless networks is constrained by the interference between concurrent transmissions from neighboring nodes. With Omni-directional antennas, while two nodes are communicating using a given channel, MAC protocols such as IEEE 802.11 require all other nodes in the vicinity to stay silent. The capacity of an ad hoc wireless network does not scale with the increasing number of nodes in the system. With directional antennas, two pair s of nodes located in each other's vicinity may potentially communicate simultaneously, depending on the directions of transmission.
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