In-band wireless backhaul for 5G millimeter wave cellular communications - interactive live demo

摘要

Due to the allocation of large contiguous bandwidths in excess of several gigahertz in the mmWave spectrum, mmWave communications plays a key role in the next generation cellular 5G networks. The applicability of simple air interfaces without the need for complex techniques for optimized spectrum utilization make mmWave carrier frequencies a preferred solution to cope with the huge traffic demand expected in 5G. With the small wavelength large antenna arrays become feasible with strong beamforming gains that easily compensate for the higher pathloss at mmW frequencies in the E-band and thus allow for a deployment of cellular access networks in dense urban outdoor scenarios. This real-time software demo shows a live interactive radio simulation of a 5G mmW network in downtown Chicago at 73GHz. The propagation effects and implemented channel model is aligned with real-world measurements. The 5G demo illustrates the dynamic cell (re-)selection triggered through terminal and scatterer mobility in a dense urban street scenario and computes all relevant key performance indicators derived by detailed RRM model. Key feature of this 5G mmW demo is the investigation of in-band wireless backhaul strategies to foster a realistic deployment of mmW access nodes including inexpensive wireless backhaul links to the egress point(s) within the same band in a typical urban scenario.