Many regulators around the world are encouraging spectrum sharing to respond to the increasing demand. The regulators adopting spectrum sharing, concern themselves with the initiatives such as unlicensed but regulated commons or use of low powered Wi-Fi devices for shared use, spectrum leases/ trading, sharing in time/space/geography dimensions. The regulatory decisions encompass decisions on technologies such as cognitive radio and market mechanisms such as various spectrum-trading schemes.
India’s Department of Telecommunication (DoT) appears be allowing spectrum sharing among the mobile companies. The operators will have to obtain regulatory approval for five years in exchange of paying fees for the shared spectrum, including the one-off fee for holding excess spectrum, according to a report of Live Mint.
Introduction to Spectrum Sharing - This link gives an introduction to Spectrum sharing. It also discusses issues such as possible forms of Spectrum Sharing, which bands can be shared, International trends in Spectrum sharing and implementation of it.
Spectrum Sharing ITU report - This report reviews various trends in spectrum sharing methods used by spectrum managers who are responding to increasing demands for spectrum coming from the unstoppable surge in new services and technologies.
USA - Enforcement and Spectrum Sharing: Case Studies of Federal-Commercial Sharing - Spectrum sharing has moved from being a radical notion to a principal policy focus in the past decade. This becomes evident as one compares the FCC’s Spectrum Policy Task Force (SPTF) report from 2002 with the President’s Council of Advisors on Science and Technology (PCAST) Spectrum report. this paper examines particular cases in spectrum sharing and studies how the enforcement principles might be applied
Mexico’s shared spectrum model - Mexico, as mandated by a recent constitutional amendment, is in the process of creating a wireless broadband wholesale network using all the spectrum in the digital dividend (700 MHz band). The decision was based on the economics behind it, as it would significantly reduce costs in the market. This paper explains the rationale behind this controversial decision and explains alternative approaches to those decisions that are still being debated.
Australia and Sweden case studies - Sweden and Australia were two early adopters of the network sharing model. This article discusses, what worked with Sweden and why the Australian network sharing was not so successful.