Resource sharing in 5G mmWave cellular networks

Abstract

Abstract-In this paper, we discuss resource sharing, a key dimension in mmWave network design in which spectrum, access and/or network infrastructure resources can be shared by multiple operators. It is argued that this sharing paradigm will be essential to fully exploit the tremendous amounts of bandwidth and the large number of antenna degrees of freedom available in these bands, and to provide statistical multiplexing to accommodate the highly variable nature of the traffic. In this paper, we investigate and compare various sharing configurations in order to capture the enhanced potential of mmWave communications. Our results reflect both the technical and the economical aspects of the various sharing paradigms. We deliver a number of key insights, corroborated by detailed simulations, which include an analysis of the effects of the distinctive propagation characteristics of the mmWave channel, along with a rigorous multi-antenna characterization. Key findings of this study include (i) the strong dependence of the comparative results on channel propagation and antenna characteristics, and therefore the need to accurately model them, and (ii) the desirability of a full spectrum and infrastructure sharing configuration, which may result in increased user rate as well as in economical advantages for both service provider.

A Spectrum Sharing Solution for the Efficient Use of mmWave Bands in 5G Cellular Scenarios

“…As the table reports, with the dynamic use of the spectrum, the average throughput is slightly bigger than the baseline, but more importantly, the fairness increases, which means that resources are better assigned among all the UEs. Other spectrum sharing techniques (i.e., the ones studied in [9]- [11]) can further improve the average throughput and the spectral efficiency, although drastically reducing the fairness among the UEs. Moreover, such schemes would require accurate coordination, which may be costly in dense networks.…”

“…However, in all these survey works simulation results are missing and a detailed mmWave environment was not considered. Some simulations and numerical evaluations were presented in [9], [10] and [11]. In both [9] and [10] it is shown that spectrum sharing at mmWave has the potential for a more efficient spectrum use than a traditional exclusive spectrum allocation to a single operator.…”

“…Some simulations and numerical evaluations were presented in [9], [10] and [11]. In both [9] and [10] it is shown that spectrum sharing at mmWave has the potential for a more efficient spectrum use than a traditional exclusive spectrum allocation to a single operator. Work [11] introduces a hybrid spectrum access scheme for mmWave networks, where data packets are scheduled through two mmWave carriers with different characteristics.…”

Realizing 5G vision through Cloud RAN: technologies, challenges, and trends

“…mmWave also enables point-to-multipoint links [86], further reducing the deployment cost. Rebato et al [87] studied how the path loss affects the mobile network deployment in terms of small-cell density and transmission power. In [88], the authors studied the path selection and the link scheduling problem for mmWave transport network as a mathematical optimization problem.…”

Exploring the Trade-Off Between Privacy and Coordination in Millimeter Wave Spectrum Sharing

“…In addition to such technical gains, sharing resources translates into substantial economic profit for the mobile operators. For example, dense infrastructure is an expected need for effective mmWave coverage in 5G mobile networks and arXiv:1904.00928v1 [eess.SP] 1 Apr 2019 spectrum sharing among operators can help decrease equipment and operating costs [4]. In parallel, expenditure arising from spectrum licensing could be reduced as well.…”