Computer Science – Networking and Internet Architecture
Scientific paper
2004-08-10
Computer Science
Networking and Internet Architecture
16 pages, 7 Figures, An earlier version of this paper appeared in the International Conference on Networking Protocols (ICNP 2
Scientific paper
Future smart environments will be characterized by multiple nodes that sense, collect, and disseminate information about environmental phenomena through a wireless network. In this paper, we define a set of applications that require a new form of distributed knowledge about the environment, referred to as non-uniform information granularity. By non-uniform information granularity we mean that the required accuracy or precision of information is proportional to the distance between a source node (information producer) and current sink node (information consumer). That is, as the distance between the source node and sink node increases, loss in information precision is acceptable. Applications that can benefit from this type of knowledge range from battlefield scenarios to rescue operations. The main objectives of this paper are two-fold: first, we will precisely define non-uniform information granularity, and second, we will describe different protocols that achieve non-uniform information dissemination and analyze these protocols based on complexity, energy consumption, and accuracy of information.
Abu-Ghazaleh Nael B.
Heinzelman Wendi
Murphy Amy
Tilak Sameer
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