Beamforming in 5G mm-wave radionetworks : Importance of frequency multiplexing for users in urban macro environments

Sammanfattning: 5G brings a few key technological improvements compared to previous generations in telecommunications. These include, but are not limited to, greater speeds, increased capacity and lower latency. These improvements are in part due to using high band frequencies, where increased capacity is found. By advancements in various technologies, mobile broadband traffic has become increasingly chatty, i.e. more small packets are being sent. From a capacity standpoint this characteristic poses a challenge for early 5G millimeter-wave advanced antenna systems. This thesis investigates if network performance of 5G millimetre-wave systems can be improved by increasing the utilisation of the bandwidth by using adaptive beamforming. Two adaptive codebook approaches are proposed; a single- beam and a multi-beam approach. The simulations are performed in an outdoor urban macro scenario. The results show that for a small packet scenario with good coverage the ability to frequency multiplex users is important for good network performance.