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Use of Smart Antennas in AD HOC Networks


Affiliations
1 Dept.of Computer Science and Engineering, Sri Sai Madhavi Institute of Science and Technology, Rajahmundry, A.P., India
2 Dept. of Computer Science and Engineering, Adikavi Nannaya University, Rajahmundry, A.P., India
3 Dept. of Computer Science, Rayalaseema University, Kurnool, A.P., India
4 Dept. of Computer Science, Dravidian University, Kuppam, A.P., India
 

The capacity of ad hoc networks can be severely limited due to interference constraints. One way of using improving the overall capacity of ad hoc networks is by the use of smart antennas. Smart antennas allow the energy to be transmitted or received in a particular direction as opposed to disseminating energy in all directions. This helps in achieving significant spatial re-use and thereby increasing the capacity of the network. However, the use of smart antennas presents significant challenges at the higher layers of the protocol stack. In particular, the medium access control and the routing layers will have to be modified and made aware of the presence of such antennas in order to exploit their use. In this paper we examine the various challenges that arise when deploying such antennas in ad hoc networks and the solutions proposed thus far in order to overcome them. The current state of the art seems to suggest that the deployment of such antennas can have a tremendous impact in terms of increasing the capacity of ad hoc networks.

Keywords

Directional Antennas, Medium Access Control, Routing.
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  • Use of Smart Antennas in AD HOC Networks

Abstract Views: 226  |  PDF Views: 116

Authors

Mohammed Ali Hussain
Dept.of Computer Science and Engineering, Sri Sai Madhavi Institute of Science and Technology, Rajahmundry, A.P., India
P. Suresh Varma
Dept. of Computer Science and Engineering, Adikavi Nannaya University, Rajahmundry, A.P., India
K. Satya Rajesh
Dept. of Computer Science, Rayalaseema University, Kurnool, A.P., India
Hussain Basha Pathan
Dept. of Computer Science, Rayalaseema University, Kurnool, A.P., India
Leela Madhav Sarraju
Dept. of Computer Science, Dravidian University, Kuppam, A.P., India

Abstract


The capacity of ad hoc networks can be severely limited due to interference constraints. One way of using improving the overall capacity of ad hoc networks is by the use of smart antennas. Smart antennas allow the energy to be transmitted or received in a particular direction as opposed to disseminating energy in all directions. This helps in achieving significant spatial re-use and thereby increasing the capacity of the network. However, the use of smart antennas presents significant challenges at the higher layers of the protocol stack. In particular, the medium access control and the routing layers will have to be modified and made aware of the presence of such antennas in order to exploit their use. In this paper we examine the various challenges that arise when deploying such antennas in ad hoc networks and the solutions proposed thus far in order to overcome them. The current state of the art seems to suggest that the deployment of such antennas can have a tremendous impact in terms of increasing the capacity of ad hoc networks.

Keywords


Directional Antennas, Medium Access Control, Routing.