Alcatel-Lucent

Displaying 1-40 of 277 results

  • White Papers // Feb 2014

    Confidential Execution of Cloud Services

    In this paper, the authors present Confidential Domain of Execution (CDE), a mechanism for achieving confidential execution of software in an otherwise untrusted environment, e.g., at a Cloud Service Provider (CSP). This is achieved by using an isolated execution environment in which any communication with the outside untrusted world is...

    Provided By Alcatel-Lucent

  • White Papers // Feb 2014

    Brokering SLAs for End-to-End QoS in Cloud Computing

    Cloud computing introduces a novel model of computing that brings several technological and business advantages. Customers can rent cloud services on a pay-per-use model, without the need for big investments for resources that have to be designed for peak workloads, whilst being at risk of remaining under-utilized for most of...

    Provided By Alcatel-Lucent

  • White Papers // Jan 2014

    Data Centre Optimisation Enhanced by Software Defined Networking

    Contemporary cloud computing infrastructures are being challenged by an increasing demand for evolved cloud services characterized by heterogeneous performance requirements including real-time, data-intensive and highly dynamic workloads. The classical way to deal with dynamicity is to scale computing and network resources horizontally. However, these techniques must be coupled effectively with...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation WiFi

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Tips to Improving your Wireless LAN

    Ensuring that all wireless network clients get the service levels they need is a major challenge, especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. Read More.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    What to expect from 802.11ac WiFi Technologies

    With the new 802.11ac Wi-Fi technologies, the IEEE standard takes many of the best techniques the Wi-Fi industry has learned about 802.11n and has made extraordinary improvements on them. This paper provides a detailed look at these improvements such as wider channels, higher-rate modulation and higher-level MIMO.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation Wi-Fi

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Top Tips to Improving your Wireless LAN

    Ensuring that all wireless network clients get the service levels they need is a major challenge, especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. Read More.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation Wi-Fi (German)

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Unify Your Networks For The Mobile Enterprise Infographic

    In order for a corporation to embrace the personal cloud era, offering connectivity and quality delivery of multimedia applications everywhere on any device, it must transform to a mobile enterprise. It will need an infrastructure that includes a right sized core, pervasive WLAN, unified access and an automated network that...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    What to expect from 802.11ac

    With the new 802.11ac Wi-Fi technologies, the IEEE standard takes many of the best techniques the Wi-Fi industry has learned about 802.11n and has made extraordinary improvements on them. This paper provides a detailed look at these improvements such as wider channels, higher-rate modulation and higher-level MIMO.

    Provided By Alcatel-Lucent

  • White Papers // Aug 2013

    Key Steps to Successfully Migrate to 802.11ac

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly. Whether you are an early adopter who has already started...

    Provided By Alcatel-Lucent

  • White Papers // Aug 2013

    Wireless LAN ClientMatch Technology

    Ensuring that all wireless network clients get the service levels they need is a major challenge -- especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. ClientMatch™ technology is an RF management technology that puts the WLAN infrastructure in control of client connectivity and roaming....

    Provided By Alcatel-Lucent

  • White Papers // Jul 2013

    End-to-End Service Quality for Cloud Applications

    In this paper, the authors aim to highlight the importance of end-to-end service quality for cloud services, with a focus on telecom carrier-grade services. In multi-tenant distributed and virtualized cloud infrastructures, the enhanced level of resource sharing raises issues in terms of performance stability and reliability of cloud services, threatening...

    Provided By Alcatel-Lucent

  • White Papers // May 2013

    A New ERA of Mobile Backhaul

    To rise above the data storm and improve your bottom line, you need to prepare your backhaul networks for supporting the evolution to the next technological upgrade and the transition to heterogeneous networks comprised of both macro and metro sites. Alcatel-Lucent through its comprehensive portfolio of backhaul products and professional...

    Provided By Alcatel-Lucent

  • White Papers // May 2013

    CloudNetSim - Simulation of Real-Time Cloud Computing Applications

    In this paper, the authors describe CloudNetSim, a project aiming to realize a simulation platform supporting their ongoing and planned research activities in the area of resource management and scheduling for distributed QoS-sensitive and soft real-time applications. It is based on OMNeT++, integrating in the platform a set of modules...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2013

    Agile Optical Networking

    Optical networking isn't just about pushing traffic anymore. The insatiable demand for mobile, video and cloud-based services is placing enormous pressure on your network - and it’s no longer enough to simply increase capacity. What's required is a scalable, versatile and dynamic networking solution that can adapt to the ever-changing...

    Provided By Alcatel-Lucent

  • White Papers // Mar 2013

    Secrecy Sum-Rates with Regularized Channel Inversion Precoding Under Imperfect CSI at the Transmitter

    In this paper, the authors study the performance of regularized channel inversion pre-coding in MISO broadcast channels with confidential messages under imperfect Channel State Information at the Transmitter (CSIT). They obtain an approximation for the achievable secrecy sum-rate which is almost surely exact as the number of transmits antennas and...

    Provided By Alcatel-Lucent

  • White Papers // Dec 2012

    Video Shakes Up the IP Edge

    As consumers demand ever more video and video consumption methods, the broadband IP networks used by many service providers to offer residential services will be overwhelmed by the sheer volume of data. The problem will be most acute at the IP edge of a triple-play provider's network, where video traffic...

    Provided By Alcatel-Lucent

  • White Papers // Dec 2012

    Massive MIMO and Small Cells: Improving Energy Efficiency by Optimal Soft-Cell Coordination

    To improve the cellular energy efficiency, without sacrificing Quality-of-Service (QoS) at the users, the network topology must be densified to enable higher spatial reuse. The authors analyze a combination of two densification approaches, namely "Massive" Multiple-Input Multiple-Output (MIMO) base stations and small-cell access points. If the latter are operator-deployed, a...

    Provided By Alcatel-Lucent

  • White Papers // Nov 2012

    SNR Efficient Approach for the Design of Hybrid Filter Bank A/D Converters

    The future applications of cognitive radio require digitization systems being capable to perform a flexible conversion in terms of bandwidth and resolution without increasing unreasonably the power consumption. The digitization systems based on Hybrid Filter Banks A/D Converters (HFB-ADC) introduced in provide an attractive solution for achieving this purpose. One...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Turning Small Cells into Big Profits

    With small cells that leverage both cellular and Wi-Fi technologies, Mobile Network Operators (MNOs) can deliver focused capacity and coverage, offload data from macro networks, and offer innovative new services. But deploying the right combination of small cells technologies and services is crucial for service uptake and Return On Investment...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Multi-Carrier Multi-Rate Utility Optimization in Heterogeneous Networks Via CSMA-Based Algorithms

    The authors study algorithms for carrier and rate allocation in cellular systems with distributed components such as a heterogeneous LTE system with macrocells and femtocells. Existing work on LTE systems often involves centralized techniques or requires significant signaling, and is therefore not always applicable in the presence of femtocells. More...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Stability Metrics and Criteria for Path-Vector Routing

    Since so far, most studies on path-vector routing stability have been conducted by means of ad-hoc analysis of Border Gateway Protocol (BGP) data traces. None of them consider the specification of an analytic method including the use of stability metrics for the systematic analysis of BGP traces and associated meta-processing...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Analysis and Implementation of the Multiprocessor BandWidth Inheritance Protocol

    The Multiprocessor-BandWidth Inheritance (M-BWI) protocol is an extension of the BandWidth Inheritance (BWI) protocol to symmetric multiprocessor systems. Similarly to Priority Inheritance, M-BWI lets a task that has locked a resource execute in the resource reservations of the blocked tasks, thus reducing their blocking time. The protocol is particularly suitable...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Market Share Analysis Between MNO and MVNO Under Brand Appeal Based Segmentation

    The authors are interested in this paper by the competition between MNO and MVNO on a population of heterogeneous customers, with different perceptions of operators offer. The MVNO buys resources from MNO at the wholesale price and offers an added value supposed to be better and at a lower price...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2012

    Building an Outsourcing Relationship

    With the transformation now taking place in telecommunications, more Communications Service Providers (CSPs) are considering outsourcing part or all of their network, business, and IT operations. While many CSPs are focused on reducing costs, taking a broader view and a relationship approach to a managed services engagement can actually provide...

    Provided By Alcatel-Lucent

  • White Papers // Jul 2012

    A Classroom in the Cloud

    Transformational change is required in the area of education to improve outcomes for students. Telecommunications service providers are in a unique position to help educational institutions harness the rapidly expanding base of mobile and connected devices to accelerate the use of digital content in the classroom. By provisioning reliable network...

    Provided By Alcatel-Lucent

  • White Papers // Jun 2012

    Signal Processing in Large Systems: A New Paradigm

    For a long time, detection and parameter estimation methods for signal processing have relied on asymptotic statistics as the number n of observations of a population grows large comparatively to the population size N. Modern technological and societal advances now demand the study of sometimes extremely large populations and simultaneously...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    Multiuser Transmit Security Beamforming in Wireless Multiple Access Channels

    In this paper, the authors investigate beamforming approaches for multiple access secrecy channels. This paper investigates the equivalency between beamforming weight solutions under a fixed sum transmit power constraint and those under a fixed secrecy rate when multiple eavesdroppers are available. They propose an advantageous semidefinite-programming based beamforming solution for...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    Towards a Flexible Resource Management System for Content Centric Networking

    Content Centric Networking (CCN) is a new and promising architecture that can provide better security and much improved content delivery service than the current Internet. Each router in CCN has a content store that caches objects according to a replacement algorithm and a pending interest table that stores pending requests...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    In-Network Caching Effect on Optimal Energy Consumption in Content-Centric Networking

    In Content-Centric Networking (CCN), the in network caching feature provides several attractive advantages such as low dissemination latency and network transport load reduction. Thus, CCN requires less transport energy but additional energy to provide a caching capability at every content router. In this paper, the authors investigate the minimum energy...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    Modeling and Evaluation of Address Resolution Scalability in VPLS

    More and more services are provided by large data centers with a potentially very large number of physical or virtual hosts. As the number of hosted services and service consumers increases, also the number of hosts inside a data center raises to cope with the increasing end-user demand. Current data...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    Optimized Constraint-Based Scheduling of OSPF Graceful Restarts for Maintenance Purposes

    This paper proposes a solution for the automation and optimized orchestration of maintenance operations in IP/MPLS transport networks by capitalizing on the standardized graceful restart mechanisms. The operator is only responsible for setting maintenance targets and constraints, and then assessing progress reports. In this context, the maintenance planning issue is...

    Provided By Alcatel-Lucent

  • White Papers // May 2012

    Pushing the Limits of Copper

    The ever growing demand for higher data rate is pushing existing electrical broadband communication systems, using coax or twisted pair cabling, to the limit. While optical access systems inherently have a much higher transmission capacity, upgrading the access network entirely to fiber remains a costly and time-consuming effort. Therefore, many...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2012

    Concurrent Data Transmissions in Green Wireless Networks: When Best Send One's Packets ?

    In this paper, the authors consider the scenario of a cellular network where base stations aim to transmit several data packets to a set of users in the downlink, within a predefined time, at minimal energy cost. The base stations are non-cooperating and the instantaneous transmission rate depends on the...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2012

    Voice Over LTE: The New Mobile Voice

    4G LTE enables mobile operators to deliver a new conversation experience of enriched voice, enlivened video and intuitive messaging. VoLTE unlocks this experience, enabling 4G LTE's all-IP services for the mobile broadband consumer. VoLTE's infrastructure also leads directly to cloud communications and WebRTC's convergence of telecommunications and the web. Now...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2012

    IPv6 Transition in Fixed and Mobile Environments

    IPv6 migration has become an important topic for most network operators as the projected increase of Internet Protocol (IP) - enabled applications, services and consumer devices - is expected to exhaust the available public IPv4 address space in the coming years. Although IPv6 has been around for some time, very...

    Provided By Alcatel-Lucent

  • White Papers // Mar 2012

    Analysis of Multicell Cooperation With Random User Locations Via Deterministic Equivalents

    The authors consider the uplink of a one-dimensional 2-cell network with fixed Base Stations (BSs) and randomly distributed User Terminals (UTs). Assuming that the number of antennas per BS and the number of UTs grow infinitely large, they derive tight approximations of the ergodic sum rate with and without multicell...

    Provided By Alcatel-Lucent

  • White Papers // Mar 2012

    Optimized Time-Domain Resource Partitioning for Enhanced Inter-Cell Interference Coordination in Heterogeneous Networks

    Heterogeneous Networks (HetNets) are expected to be one of the major performance enhancement enablers of LTE-Advanced. Due to significantly challenging interference scenarios, enhanced Inter-Cell Interference Coordination (eICIC) based on Almost Blank Subframes (ABS) is the key technology enabler that makes HetNets a reality. The key factor determining the gain of...

    Provided By Alcatel-Lucent

  • White Papers // Nov 2012

    SNR Efficient Approach for the Design of Hybrid Filter Bank A/D Converters

    The future applications of cognitive radio require digitization systems being capable to perform a flexible conversion in terms of bandwidth and resolution without increasing unreasonably the power consumption. The digitization systems based on Hybrid Filter Banks A/D Converters (HFB-ADC) introduced in provide an attractive solution for achieving this purpose. One...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Stability Metrics and Criteria for Path-Vector Routing

    Since so far, most studies on path-vector routing stability have been conducted by means of ad-hoc analysis of Border Gateway Protocol (BGP) data traces. None of them consider the specification of an analytic method including the use of stability metrics for the systematic analysis of BGP traces and associated meta-processing...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2010

    Bayesian Foundations of Channel Estimation for Smart Radios

    In this paper, the authors revisit the philosophical foundations of the field of channel estimation. Their main intention is to come up with a partial answer to the question: "Given some available sensed signals, how should cognitive radios ideally perform channel estimation?". They specifically introduce a general framework to provide...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2013

    Agile Optical Networking

    Optical networking isn't just about pushing traffic anymore. The insatiable demand for mobile, video and cloud-based services is placing enormous pressure on your network - and it’s no longer enough to simply increase capacity. What's required is a scalable, versatile and dynamic networking solution that can adapt to the ever-changing...

    Provided By Alcatel-Lucent

  • White Papers // May 2013

    A New ERA of Mobile Backhaul

    To rise above the data storm and improve your bottom line, you need to prepare your backhaul networks for supporting the evolution to the next technological upgrade and the transition to heterogeneous networks comprised of both macro and metro sites. Alcatel-Lucent through its comprehensive portfolio of backhaul products and professional...

    Provided By Alcatel-Lucent

  • White Papers // Jul 2009

    Spectral Efficiency Limitation by Fiber Non-Linearity in Optical OFDM Transmission Systems

    In this paper, the authors performance limits of optical OFDM transmission systems are investigated. The maximum achievable spectral efficiency is limited by additive noise of optical amplifiers and non-linear fiber effects. In order to assess this measure, a "Weakly non-linear" system model is used. For a given transmission scenario, there...

    Provided By Alcatel-Lucent

  • White Papers // Mar 2013

    Secrecy Sum-Rates with Regularized Channel Inversion Precoding Under Imperfect CSI at the Transmitter

    In this paper, the authors study the performance of regularized channel inversion pre-coding in MISO broadcast channels with confidential messages under imperfect Channel State Information at the Transmitter (CSIT). They obtain an approximation for the achievable secrecy sum-rate which is almost surely exact as the number of transmits antennas and...

    Provided By Alcatel-Lucent

  • White Papers // Mar 2011

    Performance of Fast Rate Adaption Techniques in Interference-Limited Networks

    In the companion paper, a fast estimator for the capacity of a secondary communication in the context of cognitive radio networks was proposed. It was particularly shown that the proposed method largely outperforms traditional ones when the available number of samples is limited. In this paper, the authors study the...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2012

    Concurrent Data Transmissions in Green Wireless Networks: When Best Send One's Packets ?

    In this paper, the authors consider the scenario of a cellular network where base stations aim to transmit several data packets to a set of users in the downlink, within a predefined time, at minimal energy cost. The base stations are non-cooperating and the instantaneous transmission rate depends on the...

    Provided By Alcatel-Lucent

  • White Papers // Dec 2008

    Flexible OFDM Schemes for Bursty Transmissions

    In this paper, a-OFDM, a generalization of the OFDM modulation, is proposed to enhance the outage capacity of bursty transmissions. This new flexible modulation scheme is easily implemented and only requires a symbol rotation of angle a after the IDFT stage. The induced rotation slides the DFT window and provides...

    Provided By Alcatel-Lucent

  • White Papers // Jul 2009

    Uplink Capacity of Self-Organizing Clustered Orthogonal CDMA Networks in Flat Fading Channels

    In this paper, the authors derive a deterministic equivalent of the Shannon-transform of certain type of large unitary random matrices. This approximation is exploited to evaluate the uplink channel capacity of clustered orthogonal CDMA network. When non-uniform power allocation among the users of each cluster is allowed, they derive an...

    Provided By Alcatel-Lucent

  • White Papers // Jul 2009

    Asymptotic Capacity of Multi-User MIMO Communications

    This paper introduces two new formulas to derive explicit capacity expressions of a class of communication schemes, which include single-cell multi-user MIMO and single-user MIMO with multi-cell interference. The extension of a classical theorem from Silverstein allows the authors to assume a channel Kronecker model between the base stations and...

    Provided By Alcatel-Lucent

  • White Papers // Jan 2012

    3D Beamforming Trials with an Active Antenna Array

    Beam-forming techniques for mobile wireless communication systems like LTE using multiple antenna arrays for transmission and reception to increase the Signal-to-Noise-and-Interference Ratio (SINR) are state of the art. The increased SINR is not only due to a larger gain in the direction of the desired user, but also due to...

    Provided By Alcatel-Lucent

  • White Papers // Aug 2013

    Key Steps to Successfully Migrate to 802.11ac

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly. Whether you are an early adopter who has already started...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Unify Your Networks For The Mobile Enterprise Infographic

    In order for a corporation to embrace the personal cloud era, offering connectivity and quality delivery of multimedia applications everywhere on any device, it must transform to a mobile enterprise. It will need an infrastructure that includes a right sized core, pervasive WLAN, unified access and an automated network that...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    What to expect from 802.11ac

    With the new 802.11ac Wi-Fi technologies, the IEEE standard takes many of the best techniques the Wi-Fi industry has learned about 802.11n and has made extraordinary improvements on them. This paper provides a detailed look at these improvements such as wider channels, higher-rate modulation and higher-level MIMO.

    Provided By Alcatel-Lucent

  • White Papers // Aug 2013

    Wireless LAN ClientMatch Technology

    Ensuring that all wireless network clients get the service levels they need is a major challenge -- especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. ClientMatch™ technology is an RF management technology that puts the WLAN infrastructure in control of client connectivity and roaming....

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation Wi-Fi

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Top Tips to Improving your Wireless LAN

    Ensuring that all wireless network clients get the service levels they need is a major challenge, especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. Read More.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation WiFi

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    Tips to Improving your Wireless LAN

    Ensuring that all wireless network clients get the service levels they need is a major challenge, especially when smartphones, tablets and other clients control their own connectivity and roaming decisions. Read More.

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    What to expect from 802.11ac WiFi Technologies

    With the new 802.11ac Wi-Fi technologies, the IEEE standard takes many of the best techniques the Wi-Fi industry has learned about 802.11n and has made extraordinary improvements on them. This paper provides a detailed look at these improvements such as wider channels, higher-rate modulation and higher-level MIMO.

    Provided By Alcatel-Lucent

  • White Papers // Oct 2009

    Mobilizing Unified Communications and Collaboration in the Dynamic Enterprise

    The Alcatel-Lucent mobility solution integrates mobile users into a Dynamic Enterprise communication framework, connecting their knowledge, which results in improved business performance. This solution also saves the Dynamic Enterprise money on mobile communications and increases user productivity because of new communication uses introduced at the mobile worker level. The current...

    Provided By Alcatel-Lucent

  • White Papers // Jun 2008

    A User-Centric Security Approach for the Dynamic Enterprise

    With the convergence of Information Technology (IT) and communications and the emergence of innovative technologies, end-user devices and applications, the pace of change in enterprises is accelerating. This acceleration, combined with increasing end-user mobility and more demanding regulatory requirements, makes managing enterprise security risks a considerable challenge. Security solutions must...

    Provided By Alcatel-Lucent

  • White Papers // Feb 2008

    The Case for an Enterprise Mobility Strategy

    Most enterprises today understand the value proposition of mobility - that it has enormous potential to accelerate business functions and improve organizational agility in ways that are both cost effective and competitively advantageous. Yet corporate uptake of mobility has been almost entirely spontaneous and unsystematic. If the authors' progress toward...

    Provided By Alcatel-Lucent

  • White Papers // Sep 2013

    The New Next Generation Wi-Fi (German)

    802.11ac is well on its way to becoming the standard for next-generation Wi-Fi. The gigabit speed, improved capacity and reliability that 802.11ac brings to wireless LANs (WLANs) are amplified as mobile users, devices and application usage continue to grow rapidly.

    Provided By Alcatel-Lucent

  • White Papers // Feb 2014

    Confidential Execution of Cloud Services

    In this paper, the authors present Confidential Domain of Execution (CDE), a mechanism for achieving confidential execution of software in an otherwise untrusted environment, e.g., at a Cloud Service Provider (CSP). This is achieved by using an isolated execution environment in which any communication with the outside untrusted world is...

    Provided By Alcatel-Lucent

  • White Papers // Feb 2014

    Brokering SLAs for End-to-End QoS in Cloud Computing

    Cloud computing introduces a novel model of computing that brings several technological and business advantages. Customers can rent cloud services on a pay-per-use model, without the need for big investments for resources that have to be designed for peak workloads, whilst being at risk of remaining under-utilized for most of...

    Provided By Alcatel-Lucent

  • White Papers // Jan 2014

    Data Centre Optimisation Enhanced by Software Defined Networking

    Contemporary cloud computing infrastructures are being challenged by an increasing demand for evolved cloud services characterized by heterogeneous performance requirements including real-time, data-intensive and highly dynamic workloads. The classical way to deal with dynamicity is to scale computing and network resources horizontally. However, these techniques must be coupled effectively with...

    Provided By Alcatel-Lucent

  • White Papers // May 2013

    CloudNetSim - Simulation of Real-Time Cloud Computing Applications

    In this paper, the authors describe CloudNetSim, a project aiming to realize a simulation platform supporting their ongoing and planned research activities in the area of resource management and scheduling for distributed QoS-sensitive and soft real-time applications. It is based on OMNeT++, integrating in the platform a set of modules...

    Provided By Alcatel-Lucent

  • White Papers // Jul 2013

    End-to-End Service Quality for Cloud Applications

    In this paper, the authors aim to highlight the importance of end-to-end service quality for cloud services, with a focus on telecom carrier-grade services. In multi-tenant distributed and virtualized cloud infrastructures, the enhanced level of resource sharing raises issues in terms of performance stability and reliability of cloud services, threatening...

    Provided By Alcatel-Lucent

  • White Papers // Oct 2012

    Analysis and Implementation of the Multiprocessor BandWidth Inheritance Protocol

    The Multiprocessor-BandWidth Inheritance (M-BWI) protocol is an extension of the BandWidth Inheritance (BWI) protocol to symmetric multiprocessor systems. Similarly to Priority Inheritance, M-BWI lets a task that has locked a resource execute in the resource reservations of the blocked tasks, thus reducing their blocking time. The protocol is particularly suitable...

    Provided By Alcatel-Lucent

  • White Papers // Feb 2011

    A Latency Simulator for Many-Core Systems

    In this paper, the authors present MCoreSim, an open-source simulation framework for massively parallel and many-core computing systems based on OMNeT++. The simulator supports tile-based architectures with distributed memory and mesh-based interconnects. Its primary purpose is to allow for investigations on the impact of the heterogeneous in-chip communication latencies, as...

    Provided By Alcatel-Lucent

  • White Papers // Nov 2011

    Characterization and Analysis of Pipelined Applications on the Intel SCC

    Many-core computing platforms can be used to parallelize computations by dividing the data to be processed into smaller chunks and processing them simultaneously on different cores. One possible approach in such parallelization is to set up a pipeline such that each smaller chunk of data passes in turn through all...

    Provided By Alcatel-Lucent

  • White Papers // Jan 2011

    Providing Performance Guarantees to Virtual Machines Using Real-Time Scheduling

    In this paper, the authors tackle the problem of providing Quality of Service (QoS) guarantees to virtualized applications, focusing on computing and networking guarantees. They propose a mechanism for providing temporal isolation based on a CPU real time scheduling strategy. This paper allows not only to have control over the...

    Provided By Alcatel-Lucent

  • White Papers // Jun 2010

    An Exception Based Approach to Timing Constraints Violations in Real-Time and Multimedia Applications

    General Purpose Operating Systems (GOPSes) are being continuously enriched with more and more features for handier development of time-sensitive, soft real-time and multimedia applications. In this paper, an exception-based programming paradigm is envisioned to deal with timing constraints violations occurring in soft real-time and multimedia applications written in the C...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2010

    Effective Real-Time Computing on Linux

    In this paper, the authors present an architecture design for supporting real time computing on Linux. This architecture focuses on improving the usability of real time capabilities for applications by providing a unified Application Programming Interface (API). Applications can therefore use it without having to know exactly what the underlying...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2010

    The Multiprocessor BandWidth Inheritance Protocol

    In this paper, the Multiprocessor-BandWidth Inheritance (M-BWI) protocol is presented, which constitutes an extension of the BandWidth Inheritance (BWI) protocol to symmetric multiprocessor and multicore systems. Similarly to priority inheritance, M-BWI reduces priority inversion in reservation-based scheduling systems; it allows the coexistence of hard, soft and non-real-time tasks; it does...

    Provided By Alcatel-Lucent

  • White Papers // Jun 2009

    Hierarchical Multiprocessor CPU Reservations for the Linux Kernel

    In this paper, the authors present ongoing work in the development of a scheduling framework that will improve the service guarantees for soft real-time applications deployed on Linux. The scheduler has been designed around the current kernel infrastructure, trying to keep the changes minimal, and basing the scheduling policy on...

    Provided By Alcatel-Lucent

  • White Papers // Apr 2010

    Improving Business Service Uptime: Proactive network performance management solutions ensure optimal business service for the Dynamic Enterprise

    The time is ripe for IT organizations to take steps to improve network uptime and performance. This paper looks at the reasons why it's been so difficult for IT departments to meet higher service level targets for the network, and how network performance management can overcome the challenges of ensuring...

    Provided By Alcatel-Lucent