1. Why we need to research on connectivity?-

2. What is motivation author research this topic?- Whereas in wireless networks with fixed infrastructure (e.g., cellular telecommunication

networks or wireless LANs), it is sufficient that each mobile node has a wireless link to at least one base station, the situation in a decentralized ad hoc network is more complicated. To achieve a fully connected ad hoc network, there must be a wireless multihop path from each mobile node to each other mobile node. The connectivity therefore depends on the number of nodes per unit area (node density) and their radio transmission range. Each single mobile node contributes to the connectivity of the entire network.

- For a given number of nodes n per area A, what is the minimum radio transmission range r0 required to achieve:• An ad hoc network in which no node is isolated?• A fully connected ad hoc network, i.e., a network in which each node can reach each other node via a wireless multihop path?

3. How this paper improve network performance?4. Base on this paper, author want to improve what things?