Implementation is key to understanding the operation of real-world wireless systems. At the physical layer, prototyping provides access to real propagation channels. It also exposes the system designer to impairments such as amplifier nonlinear, gain/phase offset, quantization effects, and timing jitter, which are often overlooked in simulations. At the MAC layer, prototyping can be used to explore the benefits of advanced transceiver architectures like MIMO-OFDM, interference cancelation, and adaptive transmission techniques. Many network simulators do not have enough physical layer fidelity to incorporate physical layer tradeoffs. At higher layers, prototyping can be used to show how technical achievements at the lower layers impact end-to-end performance objectives.
In the past ten years, we have been involved with several different prototyping activities. Our most recent work includes developing joint framework for radar and communications at both the microwave and millimeter wave bands. Our prototypes over the years have involved a variety of different hardware platforms including the GNU radio Ettus boards, National Instruments radio frequency hardware, and Texas Instruments development kits.
Check out the links to the left to read more about our prototyping activities.
We have been fortunate to have several outstanding sponsors support the development of our prototyping including the National Science Foundation under grant CNS-626797, Office of Naval Research (ONR) under grant number N00014-05-1-0169, US Army Research Laboratory under grant number W911-NF-08-1-0438, the DARPA IT-MANET program, Grant W911NF-07-1-0028, National Instruments, and the Texas Department of Transportation. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the aforementioned sponsors.