Results 11 to 20 of about 482,388 (265)
Spectrum Trading for Efficient Spectrum Utilization [PDF]
EAI Endorsed Transactions on Wireless Spectrum, 2014 The conventional command and control based spectrum management has led to substantial underutilization of some spectrum bands while severely crowding others due to the uneven and dynamic needs that vary over time and at different locations. Spectrum trading has emerged as a promising management approach to substantially improve spectrum utilization and
Cong Xiong +5 more
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Efficient Relocation of Spectrum Incumbents [PDF]
The Journal of Law and Economics, 1998 Changes in technologies and in consumer demands have made prior radio spectrum allocations far from efficient. To address this problem the FCC has recently reallocated spectrum for more flexible use in bands that are partially occupied by incumbent license holders.
Cramton, Peter +2 more
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Spectral efficiency of spectrum-pooling systems [PDF]
IET Communications, 2008 In this contribution, we investigate the idea of using cognitive radio to reuse locally unused spectrum to increase the total system capacity. We consider a multiband/wideband system in which the primary and cognitive users wish to communicate to different receivers, subject to mutual interference and assume that each user knows only his channel and ...
Majed Haddad +2 more
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Energy-efficient and high-spectrum-efficiency wireless transmission
ICST Transactions on Mobile Communications and Applications, 2022 With the deployment and commercialization of the fifth-generation (5G) mobile communication networks, the access nodes and data volume of wireless networks are showing massive and explosive growth. In this paper, we firstly review the research progress on the energy-efficient and spectrum-efficient wireless transmission, from the perspectives of both ...
Yajuan Tang +29 more
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The Efficiency of the Fcc Spectrum Auctions [PDF]
The Journal of Law and Economics, 1998 From July 1994 to July 1996, the Federal Communications Commission (FCC) conducted nine spectrum auctions, raising about $20 billion for the U.S. Treasury. The auctions assigned thousands of licenses to hundreds of firms. Were the auctions efficient?
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Dynamic Spectrum Sharing for Future LTE-NR Networks
Sensors, 2021 5G is the next mobile generation, already being deployed in some countries. It is expected to revolutionize our society, having extremely high target requirements.
Gordana Barb +2 more
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On the Efficiency and Complexity of Distributed Spectrum Allocation [PDF]
2007 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2007 We study the efficiency and complexity of a distributed spectrum allocation algorithm using explicit user coordination. Users self-organize into coordination groups and adjust spectrum assignments in each local group to approximate an optimal assignment.
Lili Cao, Haitao Zheng 0001
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NOMA Clustering for Improved Multicast IoT Schemes
Journal of Sensor and Actuator Networks, 2022 In the context of future ultra-dense mobile networks, spectrum and energy efficiencies (SE and EE) are critical measures in designing efficient systems for the sixth-generation (6G) of wireless networks. Recognized for their benefits in increasing SE and
Rajaa Elouafadi +2 more
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Energy-Efficient Nonstationary Spectrum Sharing [PDF]
IEEE Transactions on Communications, 2014 41 pages, 7 figures.
Yuanzhang Xiao, Mihaela van der Schaar
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Tongxin xuebao, 2021 To solve the problem of large power consumption caused by a large number of phase shifter (PS) in millimeter wave multi-antenna systems, a new type of dynamic connection structure was designed.With the goal of maximizing spectrum efficiency, two hybrid ...
Xiongwen ZHAO +5 more
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