05-02-2013, 02:19 PM
FAST DATA COLLECTION IN TREE-BASED WIRELESS SENSOR NETWORKS
FAST DATA.ppt (Size: 1.04 MB / Downloads: 166)
ABSTRACT
We investigate the following fundamental question - how fast can information be collected from a wireless sensor network organized as tree?
To address this, we explore and evaluate a number of different techniques using realistic simulation models under the many-to-one communication paradigm known as converge cast.
We first consider time scheduling on a single frequency channel with the aim of minimizing the number of time slots required to complete a converge cast.
Next, we combine scheduling with transmission power control to mitigate the effects of interference.
EXISTING SYSTEM
Existing work had the objective of minimizing the completion time of converge cast.
However, none of the previous work discussed the effect of multi-channel scheduling together with the comparisons of different channel assignment techniques.
Let us consider an example of moving object ie..mobile phone.
PROPOSED SYSTEM
Fast data collection with the goal to minimize the schedule length for aggregated converge cast .
Our present work is different from the above in that we evaluate transmission power control under realistic settings and compute lower bounds on the schedule length with algorithms to achieve these bounds.