Abstract—Significant progress has been made in the past few years on Dynamic Spectrum Access (DSA) wireless networks which seek to use RF spectrum more efficiently and dynamically. For example, many measurements of current spectrum utilization are available and theoretical analyses and computational simula-tions of DSA networks abound. In sharp contrast, few network systems, particularly those with a decentralized structure, have been built even at a small scale to investigate the performance, behavior, and dynamics of DSA networks. Our contribution is designing a decentralized and asynchronous DSA network and building a prototype based on software radio technologies, signal detection and classification methods, distributed coop-erative spe...
Existing wireless networks are characterized by a fixed spectrum assignment policy. However, the sca...
Thesis (M.S.)--University of Kansas, Electrical Engineering & Computer Science, 2007.Current technol...
Abstract—The users may use cognitive radio frequency (CR) in wireless communication systems which se...
This thesis presents an investigation of network assisted dynamic spectrum access techniques intende...
The problem of spectrum scarcity in uncoordinated and/or heterogeneous wireless networks is the key ...
A fundamental evolution is witnessed in recent research and development of wireless communications: ...
The exploding increase of wireless communications combined with the existing inefficient usage of th...
With the rapidly-increasing amount of high data rate wireless devices, technologies and services app...
With the rapidly-increasing amount of high data rate wireless devices, technologies and services app...
The exploding increase of wireless communications combined with the existing inefficient usage of ...
Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware r...
In this paper, we present and implement a low-cost yet effective architecture that enables dynamic s...
Abstract—Opportunistic Spectrum Access (OSA) is foreseen as the future of wireless communications. O...
In this paper, we present and implement a low-cost yet effective architecture that enables dynamic s...
Next generation wireless networks aim at a significant improvement of the spectral efficiency in ord...
Existing wireless networks are characterized by a fixed spectrum assignment policy. However, the sca...
Thesis (M.S.)--University of Kansas, Electrical Engineering & Computer Science, 2007.Current technol...
Abstract—The users may use cognitive radio frequency (CR) in wireless communication systems which se...
This thesis presents an investigation of network assisted dynamic spectrum access techniques intende...
The problem of spectrum scarcity in uncoordinated and/or heterogeneous wireless networks is the key ...
A fundamental evolution is witnessed in recent research and development of wireless communications: ...
The exploding increase of wireless communications combined with the existing inefficient usage of th...
With the rapidly-increasing amount of high data rate wireless devices, technologies and services app...
With the rapidly-increasing amount of high data rate wireless devices, technologies and services app...
The exploding increase of wireless communications combined with the existing inefficient usage of ...
Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware r...
In this paper, we present and implement a low-cost yet effective architecture that enables dynamic s...
Abstract—Opportunistic Spectrum Access (OSA) is foreseen as the future of wireless communications. O...
In this paper, we present and implement a low-cost yet effective architecture that enables dynamic s...
Next generation wireless networks aim at a significant improvement of the spectral efficiency in ord...
Existing wireless networks are characterized by a fixed spectrum assignment policy. However, the sca...
Thesis (M.S.)--University of Kansas, Electrical Engineering & Computer Science, 2007.Current technol...
Abstract—The users may use cognitive radio frequency (CR) in wireless communication systems which se...