Spectrum sharing techniques for next generation cellular networks
Master of Science thesis
Spectrum sharing is an opportunistic strategy to improve the efficient usage of the frequency spectrum. Much of the research to quantify these gains are under the premise that the spectrum is being used inefficiently. Our main result will be that even in what appears to be a spectrally efficient network, users can exploit the network topology to render additional gains. We propose a Device-to-Device (D2D) mode where cellular users can communicate directly with each other rather than using the base station. The purpose of this mode would be to provide cellular users with ad-hoc multihop access to each other on the same frequency resources that are simultaneously in use by other cellular users communicating with the base station. We will provide both analytical and simulation results showing that this D2D scheme could be a feasible option in the rollout of next generation cellular networks.
Engineering; Electronics and Electrical