An overview of dynamic spectrum sharing: Ongoing initiatives, challenges, and a roadmap for future research

An overview of dynamic spectrum sharing: Ongoing initiatives, challenges, and a roadmap for future research

We are in the midst of a major paradigm shift in how we manage radio spectrum. This paradigm shift is necessitated by the growth of wireless services of all types and the demand pressure imposed on limited spectrum resources under legacy management regimes. The shift is feasible because of advances in radio and networking technologies that make it possible to share spectrum dynamically in all possible dimensions-i.e., across frequencies, time, location, users, uses, and networks. Realizing the full potential of this shift to Dynamic Spectrum Sharing will require the co-evolution of wireless technologies, markets, and regulatory policies; a process which is occurring on a global scale. This paper provides a current overview of major technological and regulatory reforms that are leading the way toward a global paradigm shift to more flexible, dynamic, market-based ways to manage and share radio spectrum resources. We focus on current efforts to implement database-driven approaches for managing the shared co-existence of users with heterogeneous access and interference protection rights, and discuss open research challenges.

我们正处于管理无线电频谱方式的重大范式中。这种范式转变是由于各种类型的无线服务的增长以及在传统管理制度下对有限频谱资源施加的需求压力所必需的。由于无线电和网络技术的进步，这种转变是可行的，这些技术使在所有可能的维度上动态共享频谱 - 即跨越频率，时间，位置，用户，用途和网络是可能的。意识到这一转变向动态频谱共享的全部潜力将需要无线技术，市场和监管政策的共同发展；在全球范围内发生的过程。本文提供了当前的主要技术和法规改革的概述，这些改革正在迈向全球范式转向更灵活，动态，基于市场的方式来管理和共享无线电谱系资源的方式。我们专注于实施数据库驱动方法的当前努力，以管理具有异质访问和干扰保护权的用户共同存在，并讨论开放研究挑战。