Spectrum Sharing in the Shadow of Uncertainty: Risk, Incentives and Investment

在政府和/或商业实体之间共享频谱具有释放大量频谱以满足对移动的宽带服务的需求的急剧增长的潜力。虽然在开发这种共享的技术方面做了大量工作，但商业服务提供商采用广泛的共享绝不是一个放弃的结论。该项目正在解决频谱共享实现其潜力所需解决的三个基本问题：第一个问题涉及开发减轻二级频谱共享相关风险的模型和技术。例如，由于主要用户的不确定性，会出现这种风险。的活动。两种不同技术的影响（例如，更灵活的设备）和不同的合同安排（例如，第二个问题是探讨不同的频谱协议和相关风险如何影响服务提供商之间的竞争和战略行为。最后一个问题是，如何在利用频谱提供公共产品（如国防）和利用频谱提供商业宽带接入之间取得平衡。查明与每类服务有关的激励问题和交易成本，可促成产生有效成果的更好的分享机制。

Sharing of spectrum among government and/or commercial entities has the potential to unleash large amounts of spectrum to meet the dramatic increase in demand for mobile broadband services. Although there has been substantial work on developing technologies for such sharing, the adoption of extensive sharing by commercial service providers is by no means a forgone conclusion. This project is addressing three fundamental issues that need to be resolved in order for spectrum sharing to realize its potential.The first issue is concerned with developing models and techniques for mitigating the risks associated with secondary spectrum sharing. Such risks arise, for example, due to uncertainty in a primary user?s activity. The impact of both different technologies (e.g., more flexible devices) and different contractual arrangements (e.g., the possibility of offering "spectrum insurance") on such risks are being studied.The second issue is addressing how different spectrum agreements and associated risk may affect competition and strategic behavior among service providers. That affects their decisions to invest in both infrastructure and develop new spectrum sharing technologies.The final issue is understanding how to balance the benefits of using spectrum to provide a public good, such as defense, against its use to provide commercial broadband access. Identifying associated incentive issues and transaction costs with each type of service can lead to better sharing mechanisms that produce efficient outcomes.