Results 231 to 240 of about 436,980 (282)

Dynamic Spectrum Allocation Algorithms

2000
Abstract : In our previous funding, we reported the following. The standard online scheduling method to avoid fragmentation is called First Fit, which roughly speaking tries to schedule every task as early in time and as low in the spectrum as possible.
Bala Kalyanasundaram, Kirk Pruhs
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Online Spectrum Allocation Mechanism

2016
Without the synchronization of allocation periods, it is impossible to run the spectrum sharing mechanism in an offline manner. Thus, in this chapter, we investigate the online spectrum allocation problem in CR networks with uncertain activities of both PUs and SUs.
Changyan Yi, Jun Cai
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Spectrum-Shared Resource Allocation

2016
Mobile broadband networks observe a dramatic increase in data traffic volumes over the next two decades [4]. To meet this demand, large spans of spectrum is an important issue for any RAN system. On the flip side, this demand for more bandwidth exceeds the available commercial spectrum to a large extent and has motivated spectrum-governing agencies ...
Mo Ghorbanzadeh, Ahmed Abdelhadi, Charles Clancy   +2 more
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Liberalizing US spectrum allocation

Telecommunications Policy, 2003
Abstract In the US, adjudication of wireless entry under the “public interest” standard protects incumbent service providers. Excess demand exists for access to radio spectrum, despite a common misperception that license auctions held by regulators are tantamount to selling spectrum. Would-be suppliers are slowed by the regulatory process.
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Competitive Spectrum Pricing under Centralized Dynamic Spectrum Allocation

2015
Dynamic Spectrum Allocation (DSA) has been viewed as a promising approach to improving spectrum efficiency. With DSA, Wireless Service Providers (WSPs) that operate in fixed spectrum bands allocated through static allocation can solve their short-term spectrum shortage problems resulting from the bursty nature of wireless traffic.
Hailing Zhu, Andre Nel, Hendrik Ferreira
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Link capacity allocation by input power spectrum

Telecommunication Systems, 1994
Consider a multimedia input traffic stream, described by a stationary random process. Our previous study indicates that second-order input statistics, which are described by a power spectrum in the frequency domain, play a dominant role in queueing performance as compared with higher-order input statistics. In this paper, we show the significant effect
Chia-Lin Hwang, San-qi Li
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Spectrum allocation and optimization in femtocell networks

2012 IEEE International Conference on Communications (ICC), 2012
Two-tier femtocell networks have been shown to provide superior performance in terms of indoor user coverage and data rate as compared to conventional macrocellular networks. Nevertheless, when macrocells and femtocells share the whole spectrum, macrocellular communication links suffer severely from inter-tier interference, further exacerbated in dense
Cheung, W.C., Quek, Tony Q.S., Kountouris, Marios   +2 more
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An Optimal Spectrum Allocation Strategy for Dynamic Spectrum Markets

2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW), 2019
Dynamic spectrum markets for future wireless network devices will involve complex spectrum transactions. The spatio-temporal spectrum availability and the existence in the market of many diverse players with different power limit and channel bandwidth requirements, will call for new ways of allocating the spectrum [1]. Due to its perceived fairness and
Hope Mauwa, Antoine Bagula, Emmanuel Tuyishimire   +2 more
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The Revolution in Spectrum Allocation

IEEE Micro, 2009
At the end of 2007 (the latest data) the US Federal Communications Commission estimates there were 263 million wireless subscribers (almost 2.3 subscriptions per household in the US). Subscribers used an average of 769 minutes per month, generating US$0.06 average revenue per minute for all traffic ($0.05 for voice traffic). The FCC also estimates that
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Spectrum aggregation based spectrum allocation for cognitive radio networks

2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
In cognitive radio networks, the available spectrum holes are usually discontinuous. Hence, it is hard to exploit these spectrum holes because the bandwidth of an individual one may not be able to satisfy the wide bandwidth requirement imposed by secondary users (SUs).
Chengbiao Li, Wei Liu, Qin Liu, Chuan Li
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