The millimeter-wave (mmW) communications is a key enabling technology in 5G to provide ultra-high throughput. Current mmW technologies rely on analog phased arrays realize beamforming gain and overcome high path loss. However, due limited number of simultaneous beams that can be created with analog/hybrid antenna arrays, the overheads beam training scheduling become bottleneck for emerging netw...

ree access to the articles is becoming more popular since it gives thousands of researchers access to millions of publications resulting in higher visibility and receiving much more citations, which often times might be the ultimate goal. for this reason, authors may seek a way to make the papers easily accessible to other researchers via uploading the full text to their personal website and/or...