Spectrum Sensing Infrastructure Support for IEEE 1900.6b Sensing-Assisted Spectrum Databases

Spectrum databases are increasingly being used, particularly in spectrum sharing mechanisms, but also in realms such as network optimization, novel licensing regimes, and regulatory monitoring, among others. Spectrum databases are often far more effective, reactive, or sometimes even are required to operate, in conjunction with spectrum sensing - especially if their operation requires automation. Given such observations, this paper presents an update on the IEEE 1900.6b standards work on spectrum sensing to support such databases. Specifically, this paper provides an overview of IEEE 1900.6 and the current work towards 1900.6b, pinpointing the latest updates and thoughts on aspects of the system model incorporating spectrum databases, as well as use cases for the standard. It particularly concentrates on some of the more recent developments and challenges that IEEE 1900.6 is addressing for 1900.6b, such as sharing of sensing infrastructures with different client constraints (noting that spectrum databases - the clients - may have very different requirements in terms of measures such as accuracy and reliability), flexibility in the definition of sensing infrastructures, and security requirements, among many others. This paper finishes by presenting some detail on an experimental set-up for an upcoming trial of the IEEE 1900.6 standard as amended with IEEE 1900.6b capabilities, supporting the operation of a spectrum database as a key European showcase

Purpose-driven, Self-growing Networks – a

framework for enabling cognition in systems of system

Enabling Cognition in System of Systems: the Distributed Self-Growing Architecture

Abstract—This paper presents initial work towards an architecture suitable for purpose-driven, self-growing networking as realized by distributed cognitive decision engines within the network. Starting from describing basic modules enabling for self-growing, the paper derives a logical architecture for realizing the concept at various network levels. Mapping results to the UMTS stratum model shows potential for immediate applicability of the concept to deployed networks. I

partly funded by the German Ministry of Education and

Driving means constantly changing location. This, in turn, means a constant demand for information on the current location and specifically for data on the surrounding traffic. In particular, there is a demand for sensor data from other cars such as data on braking sent from a preceding car, for data on the traffic flow on a route, and for information about sites located along a route. Although need for information pertaining to the close environment of the car is obvious, so far no intervehicle communications system for data exchange between vehicles and between roadside and vehicles has been put into operation. To promote the development of such an inter-vehicle communication system, the project “FleetNet – Internet on the Road ” was set up by a consortium of six companie

IEEE Dynamic Spectrum Access Networks Standards Committee

This article presents the latest status and achievements of the IEEE Communication Society Standards for Dynamic Spectrum Access Networks, formerly IEEE Standards Coordinating Committee 41, which develops standards in the areas of dynamic spectrum access, cognitive radio, interference management, coordination of wireless systems, advanced spectrum management, and policy languages for next generation radio systems under the sponsorship of the IEEE Communications Society. The article also envisions future directions for the DYSPAN Committee

Cognitive spectrum portfolio optimisation, approaches and exploitation

Abstract A major challenge for cooperative cognitive radio networks is the creation and optimisation of a suitable spectrum portfolio, utilised by the radio nodes in the process of dynamic spectrum management. This paper presents several optimisation approaches for spectrum portfolios. Their characteristics are discussed regarding a variety of different scenarios, and it is shown how different approaches can complement each other to optimise the overall spectrum management, in particular considering spectrum portfolio optimisation under mobility and QoS constraints. Special consideration of upcoming TV whitespace communication use cases is shown in this discussion

Flexible architecture for spectrum and resource management in the whitespace

Abstract Spectrum resources unused in the spatio-temporal domain, so-called whitespace, can be utilised by opportunistic devices during the absence of their incumbent users. The possibility to opportunistically use whitespace implies the knowledge of diverse constraints: knowledge about whitespace utilisation, which can be obtained by spectrum sensing or from a data repository and constraints internal to the opportunistic system, such as quality of service (QoS) levels and mobility targets. The use of whitespace requires therefore a multi-faced management of the above constraints. In this paper, an architecture for use of whitespaces under QoS and mobility constraints is proposed. The proposed architecture flexibly adapts to different operating scenarios also described in this paper. Examples show how different realisations of the same architecture are derived. The interactions of constituent blocks are illustrated also with the help of charts, showing the management of context information and its use