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Auction-based spectrum sharing is a promising solution to improve the spectrum utilization in 5G networks. Along with the spatial reuse, we observe that the ability to adjust the coverage of a spectrum bidder can provide room to itself for further negotiation while auctioning. In this paper, we propose a novel economic tool, size-negotiable auction mechanism (SNAM), which provides a hybrid solution...
Spectrum Access System (SAS) is a three tier spectrum sharing framework proposed by the FCC. In this framework the aggregate interference of tier-3 General Authorised Access (GAA) users should be below a predetermined threshold anywhere within the tier-2 Priority Access Licensee (PAL) exclusion zone. GAA are expected to use a diverse range of Radio Access Technologies (RATs) with different levels...
Spectrum Access System (SAS) allows incumbent military systems to share spectrum in a hierarchical manner with tier-2 Priority Access License (PAL) users and tier-3 General Authorized Access (GAA) users. FCC has recently allowed PAL owners to sublicense their channels. Therefore, when GAA channels are congested they can request a sublicense to access the PAL channel on a coordinated basis, which provides...
A printed monopole antenna with O-shaped ground plane presented in this paper covers FDD/TDD-LTE, DCS, PCS, and 2.4 GHz ISM bands for smartphone applications. The antenna has a wide impedance bandwidth of 2.02 GHz (1.12–3.14 GHz) with a voltage standing wave ratio of 3:1, given the overall antenna size is 40 × 15 × 0.035 mm3. Peak gain of the proposed antenna is 5.30 dBi with a gain variation of less...
Femto base stations will be widely deployed in 5G times for compensating poor cellular coverage for use in residential or small business environments. In this paper, we propose a spectrum sharing framework, where a cluster of femtocells are under the control of a centralized local manager. The framework assumes that each femto base station has the sniffing ability that can detect its neighbor femtocells...
The auction mechanism is an effective solution to expedite the reform of spectrum allocation in 5G networks. With the reference of the spectrum geolocation database, it can provide secondary networks with idle and noncontinuous spectrum blocks without interference. Because of privacy issues, cellular operators have no idea of the others' deployments. So the inter-cell interference should be well managed...
Licensed Shared Access offers an opportunity to further increase data rates in 5G networks. Considering that different commercial operators have no knowledge of each other, their base stations should be coordinated by a management entity to enable them to access the licensed shared spectrum without interference. An auction mechanism is often used as an efficient tool for resource allocation where...
A distributed antenna system (DAS) architecture is a key enabler for Cloud Radio Access Networks (CRAN) where geographically separated base stations are connected to a centralized processing and decision making unit. Many schemes have been proposed to leverage Fractional Frequency Reuse (FFR) and co- ordinated joint transmission between base stations to improve cell-edge performance for static network...
The explosion of different types of wireless communications is leading to an impending spectrum famine. As a result, spectrum sharing has gained increasing interest from governments, industry and regulators, such as FCC in US and CEPT in Europe. Licensed Shared Access (LSA), developed by CEPT and ETSI, is a concept for an efficient use of current spectrum resources to enable keeping pace with increasing...
This chapter provides an overview on European Telecommunications Standards Institute (ETSI) activities related to opportunistic spectrum sharing technology with a specific focus on (TV) white spaces. Key use cases are outlined and a novel approach for a coordinated and an uncoordinated approach for accessing the spectrum resource is given. A spectrum coordinator is indeed introduced in order to handle...
A distributed antenna system (DAS) architecture is considered to be a key enabler for further Network Virtualization where different network configurations are created as needed by a centralized decision making unit that is typically integrated into the Cloud Radio Access Networks (C-RAN) which offers a potential architecture for 5G wireless communication systems. Many schemes have been proposed for...
A vision of a 5th Generation Wireless Communication system is presented which targets the efficient integration of multiple, heterogeneous Radio Access Technologies in conjunction with an heterogeneous cell-type deployment and the application of new spectrum bands and spectrum usage paradigms, such as advanced sharing concepts leading to Quality-of-Service guarantees for incumbents and cellular licensees...
In the context of a wireless communication infrastructure, the Licensed Shared Access (LSA) concept is currently being developed by CEPT regulation and ETSI standardization bodies, with the aim of enabling cellular operators to have access to further spectral resources on a licensed shared basis. Even though spectrum owners, also known as Incumbents, will cooperate with cellular operators in the framework...
Millimeter Wave (mmWave) communication, taking place in the frequency bands between 30 and 300 GHz, is widely considered to be a key-enabler of future Fifth Generation (5G) Cellular Communication Systems, which will be deployed starting by the year 2020 and will provide a capacity increase up to a factor of 10,000 compared to existing network infrastructures. Main drivers for this upcoming network...
A distributed antenna system (DAS) architecture is considered to be a key enabler for further Network Virtualization where different network configurations are created as needed by a centralized decision making unit that is typically integrated into the Cloud Radio Access Network (C-RAN) which offers a potential architecture for 5G wireless communication systems. Many schemes have been proposed for...
The next revision of the R&TTE Directive, which represents the basic regulatory framework for wireless communication in Europe, is expected to be finalized in 2011. In particular, this new revision is expected to provide a novel framework for reconfigurable radio devices, for example building on Software Defined Radio features. Those devices may maintain one or multiple links to heterogeneous...
In this paper, we introduce the application of CR-based spectrum sharing concepts to enable opportunistic relaying operations in cellular networks. In particular, i) we build on recent FCC rules and CEPT plans (SE43) that regulate the opportunistic spectrum usage in TV white spaces at 470–790 MHz; and ii) we show that opportunistic relaying can lead to higher spectral efficiencies and/or reduced CAPEX...
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