Randomised Collaborative Transmission of Smart Objects
Stephan Sigg, Michael Beigl · 2008
We propose a randomised approach to time and frequency synchronisation of superimposed received signals from collaboratively transmitting smart objects. The technique is feasible without communication between nodes and entirely relies on the receiver feedback. It is practical for an arbitrary number of received signals and transmitter nodes. The superimposed received signal has its maximum constructive interference focused on an arbitrary location of a remote receiver. In both, analytic considerations and in a simulation environment we demonstrate that synchronisation of several hundred received signals is possible within milliseconds.