Sunday, 17 January 2016
Location: South Pacific 3
Three tremendously timely papers which address important questions about mobile broadband spectrum. Should mobile broadband spectrum at mm wavelengths (26-60 GHz) be licensed or unlicensed – or both? What does a 145 country study show about the conditions under which regulators are most able to adopt paradigm shifting spectrum allocation policies for the best use of the resource? How can wireless network virtualization and spectrum sharing be used together to meet the increasing demand for the spectrum resource? If you are interested in the future of mobile broadband spectrum, you need to hear this.
Distinguished Professor in Residence, College of Social Sciences, University of Hawaiʻi, Mānoa
Director, Widenet Group Ltd
Our research summarises the benefits and limitations of using spectrum at mm wavelengths for radio access in cellular networks. It discusses the engineering viability of using mm wavelengths for cellular use, but focuses on the assignment of spectrum in this band from a regulation and policy use point of view. In particular, the analysis considers whether mm wavelength spectrum should be used as licensed or unlicensed bands, or a combination of both, when used for cellular networks.
Our research shows that mm wavelengths for cellular use is best used where coverage is not expected to be continuous or ubiquitous, and used in areas where capacity demands cannot be met by using the UHF band. In addition our paper shows that there are benefits of assigning part of the mm wavelength band as unlicensed spectrum for private individuals or small networks, and part of the adjacent mm wavelength band as licensed spectrum for cellular operators.
Ph.D. Student, School of Information Sciences, University of Pittsburgh
Spectrum Sharing and Wireless Network Virtualization have been explored as methods to achieve spectrum efficiency, increase network capacity and, overall, to address the existing spectrum scarcity problems. This work aims at exploring the link between these two topics, by specifically placing virtualization as a technology that
can render spectrum sharing schemes feasible.
No complete analysis can be made without taking into account three important axes: technology, policy and economics. In this light, in order to explore how virtualization enables spectrum sharing, flexibility is studied as a common attribute, due to the characteristics it presents regarding the three preceding axes.
By determining how spectrum sharing, wireless virtualization and flexibility tie together, ground can be laid toward exploring further opportunities that would enhance spectrum usage, making it possible for this resource to foster these days’ ever-increasing demand.
Please click here to view presentation slides.
Research Fellow, Technology and Management Department, Chalmers University
Theoretical works that explain the dynamics of the regulatory institutions and their decisions related to spectrum management are in abundance. However, quantitative scrutiny is scarce. We try to fill the gap through empirical research. This research empirically ascertains first, the impact of the institutional environment on the regulatory choices and second, the impact of these choices on the marketplace. The dataset used has information regarding 3G mobile telephony spectrum management decisions: spectrum auction, band mandate for 3G and having provisions for multiple technology standards for 3G. We perform separate estimations for each of the decisions.
A spectrum management scheme is a set of policies and procedures that enables national regulatory authorities to select which band of spectrum is to be assigned to which operator for what use. Among various regulatory decisions, the most crucial are: the choice of spectrum band, the decision regarding technology standards and the method of awarding licenses. In most cases, the regulators make available a new specific band of spectrum for the introduction of newer technology or to respond to spectrum need. This decision depends on various technical and policy oriented issues such as channel interference, competition, and social needs. Based on these criteria the regulators may award operators a new spectrum band or allow them to reuse their existing licensed spectrum for a new generation.
Our estimations find that in the telecommunications sector, it is not the over all political conditions but the construct of the regulatory structure-independence and scope that enables the regulators to take decisions in favor of paradigm technologies and interventions. We find that the decisions related to spectrum management, have positive impact on diffusion. However, the ‘one size fit all solution’ does not work well as in terms of consumer price and GDP growth, influence of these interventions affect the countries of different economic level and geo-political locations differently. We also find evidence that, whilst the institutions impact various regulatory decisions which in turn impact the diffusion of technologies, the variables of the institutions do not have direct influence on the diffusion process.