how topology control can be done in wireless networks?

timer Asked: Apr 11th, 2017

Question Description


I'm a student seeking for help to find the solution to my proposed idea in the field of wireless networks. the following data is part of my proposed paper.

Abstract The objective of this project is to implement topology control by using Virtual-Backbone updates which helps to maintain connectivity between the nodes. Strong connectivity and maintenance is required between VB and nodes because nodes in Mobile AD Hoc Networks can move to different places at any time. So, in order to overcome this, we use 2-connected graph approximation. Topology will become stabilized by providing minimum rerouting and balanced routing between nodes. In order to maintain minimum nodes, we proposed Backbone based Topology Control Algorithm.

following is the problem which i identified

In wireless sensor networks, the nodes have a different problem like failure of connection between nodes and as the nodes in the WSN have mobility so the life time of nodes will below. The connection between the nodes can be established by constructing the CDS which can be used to build the virtual backbone. Here the nodes in the CDS called dominators are part of virtual backbones and acts as gateways. These nodes have the routing information, Other nodes are called dominate, doesn’t hold any routing information. In broadcast of packets by these nodes have a chance of sending the packets more than once to the other nodes which leads to redundancy of packets.

In extreme Conditions, let us consider an example that the sensors which casts the weather reports of specific area got exposed to connectivity loss of a single node which leads to the network failure because of transmission failure between nodes. Which will increase the load on other nodes which leads to the nodes run out of energy faster. In this case network require strong topology and connections between nodes which can be overcome with virtual backbone updates.

In this paper, we propose _ distributed algorithm to reconstruct CDS with minimum virtual backbone updates and to increase the battery life of the sensors by switching the nodes to active state to improve efficiency.

I would like to inform you that the project should be done on omnet++ with the best simulation results. the project is to be done as following steps:

1. In a network, the nodes should form CDS and construct virtual back bones.

2. if one of the nodes in virtual backbones or CDS gets disconnected, the network should reconstruct CDS.

3. To avoid more consumption of battery, the nodes should be switched to sleep mode when the node is idle.

Simulation is expected with the best results.

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