System design and network architecture for a millimeter-wave mobile broadband (MMB) system

Evolution beyond 4G (LTE and mobile WiMAX) is crucial in keeping up with the exponential growth of mobile data traffic. In this paper, we describe a millimeter-wave mobile broadband (MMB) system that utilizes frequencies in the 3-300 GHz spectrum as a candidate for next generation mobile communication. A few key concepts in MMB network architecture such as the MMB inter-BS backhaul link, MMB base station grid, and hybrid MMB + 4G system are described. We demonstrate the feasibility of using millimeter waves to provide Giga bps data rate at a distance up to 1 km for mobility up to 350 kmph. We also discuss a few aspects of MMB air interface design such as beamforming, multiple access, and adaptive modulation and coding.