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White Papers

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  • E2R II White Paper: The E2R II Business Outlook: Framework, Instantiations and Challenges for Reconfigurability (October 06)
    • Abstract: In this White Paper, the progress made on business modelling research within the E²R II project will be discussed. In particular, this paper aims to explain how, through BSAP methodology, an unambiguous and comprehensive ontology of business roles and relationships for reconfigurable environments has been created –the Unified Business Model (UBM) - and how this model is subsequently being used to make real-world instantiations which reflect the provision of specific services making use of reconfigurability concepts with special regard to autonomics and self-management issues.
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  • E2R II White Paper: E2R II Scenario on Autonomic Communication Systems for Seamless Experience (November 06)
    • Abstract: The reconfigurability concept emerges as one of the most promising solutions for future heterogeneous systems networking, also providing the basis for more advanced concepts, including cognitive systems and autonomic communication environments. Targeted to capture the main technical issues and business challenges of autonomic communications systems, a system scenario is introduced, addressing reconfiguration and self-management capabilities in the terminal equipment, spanning from the services layer, the application layer, the protocol stack and hardware resources. In addition, the dynamic network configuration is also considered. This work aims at specifying a common view on the main targets of the E2R Phase II project, considering technological and architectural issues as well as business aspects.
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  • E2R II White Paper: RF Transceiver Architecture for Cognitive Radio User Equipment (June 07)
    • Abstract: State-of-the-art RF transceiver ICs for user equipment (UE) devices (cell phones, wireless data cards, etc.) are usually optimized for a single radio access technology (RAT). UE devices supporting multiple RATs typically comprise multiple RF transceiver ICs, one for each RAT. Compared to a multi-mode radio, a cognitive radio, however, requires multiple RATs to be supported by a single RF transceiver IC by means of re-configuration, if a wide frequency spectrum should be shared. A software radio would meet the needs of a cognitive radio, since it entails a maximum degree for re-configuration. The provoking vision of a software radio has, however, a number of technical obstacles, which will not be overcome in the foreseeable future. To fill the gap between multi-IC multi-mode UEs and the software radio, an advancement of the well-known direct-conversion receiver and transmitter for cognitive radio UE devices is presented here. This white paper gives an overview of the proposed RF transceiver architecture and sketches technical solutions for critical building blocks of a cognitive radio enabled RF receiver. In particular, the analog front-end (RF bandpass filter, LNA, frequency synthesizer, demodulator and analog baseband filter), a re-configurable ADC, and a cognitive radio enabled digital front-end (DFE) are highlighted in the context of the E2R project.
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  • E2R II White Paper: End-to-End Reconfiguration Management and Control System Architecture (June 07)
    • Abstract: Reconfigurability denotes the capability of a system that can dynamically change its behaviour. In the context of the E²R II project reconfigurability tackles the changeable behaviour of wireless networks and associated equipment, specifically in the fields of radio spectrum, radio access technologies, protocol stacks, and application services. This white paper presents the end-to-end management and control system architecture being developed in E2R II based on the concept of a Self-ware Reconfiguration Management Plane, which comprises a network-agnostic protocol-independent model that captures innovative software and cognitive radio solutions enriched by self-ware capabilities. The white paper lays the technical challenges, delineates the adopted modelling approach, and presents the system architecture in terms of functional and UML modelling.
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  • E2R II White Paper: The E2R II Flexible Spectrum Management (FSM) - Technical, Business & Regulatory Perspectives (July 07)
    • Abstract: The key objective of the E2R II project is to devise, develop, trial and showcase architectural design of reconfigurable devices and supporting system functions to offer an extensive set of operational choices to the users, application and service providers, operators, manufacturers and regulators in the context of heterogeneous systems. One of the key E2R II research domains resides in the Flexible Spectrum Management (FSM) and E2R II is developing concepts and solutions for enabling and broadening the range of mechanisms available to increase the efficiency of radio resource usage. The E2R II research is developing these concepts and solutions on technical, business and regulatory sides. The business models research permits the selection of the most relevant concepts and solutions ensuring development and future deployment of sustainable reconfigurable systems. The regulatory research is furthering and supporting the adoption of E2R II concepts and solutions in the world radio regions. This research is also helping the evolution of the regulatory framework in order to cope with the future development of more flexible and market driven solutions for spectrum usage that will only be possible if suitable solutions for managing and controlling complex heterogeneous systems are in place. This White Paper is the first overview document introducing the overall E2R II Flexible Spectrum Management (FSM) concept, from technical, business and regulatory perspectives.
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  • E2R II White Paper: The E2R II Flexible Spectrum Management (FSM) Framework and Cognitive Pilot Channel (CPC) Concept – Technical and Business Analysis and Recommendations (November 07)
    • Abstract: As a result of investigating opportunities to enhance the efficiency of radio resource and spectrum management in a context of end-to-end reconfigurability, the E²R IST programme has developed studies on Flexible Spectrum Management (FSM) and initiated the concept of the Cognitive Pilot Channel (CPC), which further develops the benefits of possibilities offered by cognitive radio systems (cognitive radio and cognitive networks). E2R II has worked (and the efforts are being continued) on defining a detailed and accurate vision of the influence of FSM on the mobile value network, control, cost and revenue structure as well as the potential value of FSM enabled networks and services. E2R has also launched and developed the concept of a Cognitive Pilot Channel (CPC) to support and facilitate end-to-end connectivity in a heterogeneous radio access environment where technologies are used in a flexible and dynamic manner in their spectrum allocation context. The E2R work on FSM and CPC has been partly put forward as IEEE SCC41 P1900.4 standardization, and more of this work is expected to be introduced into an ETSI standardization effort on Reconfigurable Radio Systems (RRS). Moreover, CPC was introduced during WRC07 as an agenda item to the WRC11, thus opening the way for global standardisation of this E2R research outcome. The E2R II business work on FSM and CPC has reached a level of maturity both internally (the project consortium) and externally (through the organization of specific business interviews and the further organization of business modelling workshops). Complementing the release of the E2R II White Paper on FSM from technical, business and regulatory perspectives, this new White Paper is furthering the analysis and presents the current detailed conclusions from the E2R II research on FSM and CPC from both technical and business perspectives. The three FSM scenarios analyzed range from short to medium to long terms, considering (1) Spectrum Refarming, (2) Digital Dividend (including “White Space”) exploitation, (3) Flexible Spectrum (in potentially full flexibility perspective and also covering complementary aspects of the “White Space”). Then the CPC is analyzed as one key enabler for implementing FSM and to guarantee optimal connectivity in a dynamic and flexible heterogeneous radio environment.
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