mmWave communications have been shown to be feasible in future networks. Thanks to their very large available bandwidth, they have captured the interest of academia and industry alike as a key enabler to solve the spectrum crunch problem. Nevertheless, the new characteristics of mmWaves call for a paradigm change in wireless protocols and many challenges still remain unaddressed. Among these, an important feature to analyze is the use of multicast via point-to-multipoint communications to further increase spectrum efficiency, improve reliability and reduce the access point load. The combination of multicast and mmWaves presents many issues, starting with how the beams should be shaped to communicate to the users. This article will cover some important aspects at the intersection of the two technologies and, in particular, it will show that restricting the wireless links to be unicast only may be strongly suboptimal.

Multicast via point to multipoint transmissions in directional 5G mmWave communications

Biason, Alessandro;Zorzi, Michele
2019

Abstract

mmWave communications have been shown to be feasible in future networks. Thanks to their very large available bandwidth, they have captured the interest of academia and industry alike as a key enabler to solve the spectrum crunch problem. Nevertheless, the new characteristics of mmWaves call for a paradigm change in wireless protocols and many challenges still remain unaddressed. Among these, an important feature to analyze is the use of multicast via point-to-multipoint communications to further increase spectrum efficiency, improve reliability and reduce the access point load. The combination of multicast and mmWaves presents many issues, starting with how the beams should be shaped to communicate to the users. This article will cover some important aspects at the intersection of the two technologies and, in particular, it will show that restricting the wireless links to be unicast only may be strongly suboptimal.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3300401
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