Today I read a paper titled “Multimedia Content Distribution in Hybrid Wireless Networks using Weighted Clustering”
The abstract is:
Fixed infrastructured networks naturally support centralized approaches for group management and information provisioning.
Contrary to infrastructured networks, in multi-hop ad-hoc networks each node acts as a router as well as sender and receiver.
Some applications, however, requires hierarchical arrangements that-for practical reasons-has to be done locally and self-organized.
An additional challenge is to deal with mobility that causes permanent network partitioning and re-organizations.
Technically, these problems can be tackled by providing additional uplinks to a backbone network, which can be used to access resources in the Internet as well as to inter-link multiple ad-hoc network partitions, creating a hybrid wireless network.
In this paper, we present a prototypically implemented hybrid wireless network system optimized for multimedia content distribution.
To efficiently manage the ad-hoc communicating devices a weighted clustering algorithm is introduced.
The proposed localized algorithm deals with mobility, but does not require geographical information or distances.