The code looks fine to me, I think the missing items for merge (that would also help a review): - example usage of the model (perhaps even a simple toy example in examples/ directory) - CHANGES.html that documents any changed behavior on the old (narrowband) model as well as summarizing new API and capabilities - .rst text, perhaps summarizing your wns3 poster? - a regression test that spot checks your correlation properties and channel gain - various licenses missing (as noted in the review) please add ns-3-reviews@googlegroups.com to this issue; I don't think I saw the original mail http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/discr... File src/propagation/model/discrete-fourier-transform.h (right): http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/discr... src/propagation/model/discrete-fourier-transform.h:1: #ifndef NS3_DFT_H_ File is missing copyright http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/discr... src/propagation/model/discrete-fourier-transform.h:10: * \brief O(N^2) DFT a bit more verbose documentation please http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/wideb... File src/propagation/model/wideband-doppler-process.cc (right): http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/wideb... src/propagation/model/wideband-doppler-process.cc:1: #include "wideband-doppler-process.h" missing license http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/wideb... File src/propagation/model/wideband-doppler-process.h (right): http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/wideb... src/propagation/model/wideband-doppler-process.h:1: #ifndef WIDEBAND_DOPPLER_PROCESS_H_ license http://mail.codereview.appspot.com/5862047/diff/1/src/propagation/model/wideb... src/propagation/model/wideband-doppler-process.h:12: { class documentation