Fast Data Collection in Tree-Based Wireless Sensor Networks in MATLAB Sofware

We first consider time scheduling on a single frequency channel

with the aim of minimizing the number of time slots required (schedule length) to complete a convergecast. Next, we combine

scheduling with transmission power control to mitigate the effects of interference, and show that while power control helps in reducing

the schedule length under a single frequency, scheduling transmissions using multiple frequencies is more efficient. We give lower

bounds on the schedule length when interference is completely eliminated, and propose algorithms that achieve these bounds. We

also evaluate the performance of various channel assignment methods and find empirically that for moderate size networks of about

100 nodes, the use of multifrequency scheduling can suffice to eliminate most of the interference. Then, the data collection rate no

longer remains limited by interference but by the topology of the routing tree. To this end, we construct degree-constrained spanning

trees and capacitated minimal spanning trees, and show significant improvement in scheduling performance over different deployment

densities. Lastly, we evaluate the impact of different interference and channel models on the schedule length.

I've Attached a PDF file. I need that paper to be implemented in MATLAB Software.

Habilidades: Matlab and Mathematica

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