We discuss the key components of the current de facto spectrum sharing architecture,
opportunistic spectrum access, including spectrum sensing, spectrum access, and spectrum …

In this article, we first provide a taxonomy of dynamic spectrum access. We then focus on
opportunistic spectrum access, the overlay approach under the hierarchical access model of …

This article addresses a subject that is ripe for application and is approaching necessity for
the continued expansive growth in the use of wireless for broadband multimedia …

The radio spectrum is a precious resource that underpins various wireless services. It is
traditionally regulated by a fixed frequency assignment policy, which allocates frequency …

Details the paradigms of opportunistic spectrum sharing and white space access as effective
means to satisfy increasing demand for high-speed wireless communication and for novel …

As the heterogeneity of wireless access technologies increases, dynamic allocation and
utilisation of spectrum become ever more important. The traditional rigid allocation of …

Wireless communications have become critical to modern society as the foundation of vital
services, business interactions, and social connections. As technology develops and new …

We consider the concept of opportunistic spectrum access (OSA)--whereby radios identify
unused portions of licensed spectrum, and utilize that spectrum without adverse impact on …

Much of the consideration of Dynamic Spectrum Access has been focused on its ability to
provide secondary spectrum sharing without any impact on primary users of the spectrum. It …

In this paper, we provide a survey of dynamic spectrum access techniques. Various
approaches envisioned for dynamic spectrum access are broadly categorized under three …