GlitchLess: Dynamic Power Minimization in FPGAs Through Edge Alignment and Glitch Filtering

This paper describes GlitchLess, a circuit-level technique for reducing power in field-programmable gate arrays (FPGAs) by eliminating unnecessary logic transitions called glitches. This is done by adding programmable delay elements to the logic blocks of the FPGA. After routing a circuit and performing static timing analysis, these delay elements are programmed to align the arrival times of the inputs of each lookup table (LUT), thereby preventing new glitches from being generated. Moreover, the delay elements also behave as filters that eliminate other glitches generated by upstream logic or off-chip circuitry. On average, the proposed implementation eliminates 87% of the glitching, which reduces overall FPGA power by 17%. The added circuitry increases the overall FPGA area by 6% and critical-path delay by less than 1%. Furthermore, since it is applied after routing, the proposed technique requires little or no modifications to the routing architecture or computer-aided design (CAD) flow.      

Rate Adaptation Schemes for Different Service Requirements in the Code Division Multiple Access Environment

1IntroductionCodeDivisionMultiplg,.Access(CDMA)isamultipleaccesstechniquebasedonspreadspectrum.Actually,thisisa"secondmodulationtechnique."Inthedirectsequencespreadspectrum,theservicedatastreamisproceededbyaconventionalstandarddigitalmodulation,suchasBinaryPhaseShiftkeying(BPSK),andthenaspreadingsignalisappliedforthesecondtimemodulationoftheservicestream.ThepurposeofspreadspectrumistotransformasignalwithbandwidthB.B.intoanoise-likesignalofmuchlargerbandwidthB..Typically,thepowerofradia…     

工作流技术在“电信业务市场综合管理信息系统”中的应用

提出应用工作流技术解决许可审批流程电子化过程中所面临的流程、申请材料、人员分工等方面的复杂多变的问题,并结合实际工作进行了工作流系统的模型分析,展示了工作流技术在实际系统中的应用结果。     

Time-Cost Efficient Scheduling Algorithms for Executing Workflow in Infrastructure as a Service Clouds

Cloud Computing enables delivery of IT resources over the Internet and follows the pay-as-you-go billing model. The cloud infrastructures can be used as an appropriate environment for executing of workflow applications. To execute workflow applications in this environment, it is necessary to develop the workflow scheduling algorithms that consider different QoS parameters such as execution time and cost. Therefore, in this paper we focus on two criteria: total completion time (makespan) and execution cost of workflow, and propose two heuristic algorithms: MTDC (Minimum Time and Decreased Cost) which aims to create a schedule that minimizes the makespan and decreases execution cost, and CTDC (Constrained Time and Decreased Cost) which is based on the first algorithm (MTDC) and aims to create a schedule that decreases the execution cost while satisfying the deadline constraint of the workflow application. The proposed algorithms are evaluated by a simulation process using WorkflowSim. To evaluate the proposed algorithms, the results of MTDC are compared with the results of HEFT (Heterogeneous Earliest Finish Time), and the results of CTDC are compared with the results of heuristic based algorithms [such as IC-PCP (IaaS Cloud Partial Critical Paths), IC-PCPD2 (Deadline Distribution) and BDHEFT (Budget and Deadline HEFT)] and meta-heuristic based algorithms [such as PSO (Particle Swarm Optimization) and CGA2 (Coevolutionary Genetic Algorithm with Adaptive penalty function)]. The results show that the proposed algorithms perform better than the mentioned algorithms in most cases.     

TD-MRBT系统中的业务逻辑执行环境

SLEE（Service Logic Execution Environment）是业务逻辑的执行环境,能够满足下一代网络对新业务的极大需求。本文首先介绍了SLEE的总体结构,然后重点阐述了SLEE的两个主要组成部分：支撑容器和业务容器的体系结构以及功能特点。最后介绍了SLEE在TD-MRBT（TD-Multimedia Ring Back Tone）系统中的应用。     

智能网业务生成环境中的业务编辑及业务装配技术

本文首先介绍智能网的概念和智能网业务生成环境的原理，然后描述了智能网ＣＩＮ０１系统中业务生成环境的基本结构及关键部分：业务逻辑编辑器及业务装配器的实现，最后介绍了ＣＩＮ０１中实现业务生成环境的软件环境与方法。     

基于策略的下一代网络业务管理环境

对下一代网络的业务管理环境构建方法问题进行了研究.下一代网络的业务管理环境应保证业务的服务质量,能适应多业务的环境并提供方便的多业务管理功能.提出基于策略的业务管理模型,将策略执行点、管理功能执行点和管理功能程序三者分离,在此基础上设计并实现了一个适用于多业务环境的、具有QoS保证的、扩展性强的基于策略的业务管理环境（PB-SME）.PBSME较好地满足了下一代网络对业务管理环境的要求.     

Modeling Service Activation in a Multimedia Environment

The emergence of multimedia applications requires appropriate management and control activities to be provided and organized in an integrated framework. This article presents an architectural approach to the modeling of service activation processing in a multimedia environment.     

多粒度多业务环境下的传送平面

文章从多粒度多业务环境对智能光网传送平面的要求出发,分析了光电光结构和全光结构的传送平面的实现技术,提出了一种适合WDM网络的传送平面结构。     

基于网格的科学计算的公平服务方法研究

在科学与工程计算领域，各种科学计算库及其工具软件扮演着十分重要的角色。在科学计算网格中．通过引入软件代理可以更好地利用这些计算库和工具软件库。本文通过对网络化科学计算工具NetSolve的分析．通过引入服务队列、访问率、时差和连续性等因子，改进了其中的用户访问策略和资源调度方法，使其具有资源访问的公正性和负载均衡性。     

下一代网络中业务执行环境框架系统的设计

随着网络的不断融合，网络能力开放和业务引入的安全性问题亟待解决。通过分析下一代网络开放式的编程接口——Parlay API的特点及其功能，提出了一种安全、高效的基于Parlay框架接口的应用侧框架系统结构，对其系统结构及关键模块进行了详细介绍。     

IN中业务创建环境的设计与实现

文章介绍了ＩＮ中业务创建环境的思想、概念及相关标准，重点论述了业务创建环境的具体设计与实现。     

嵌入式环境下Web Service技术的实现

为了解决嵌入式系统与其他异构系统之间互联和集成的难题,提出了Web Service技术在低端嵌入式设备上的实现方法。以ARM Cortex-M3微处理器为核心,基于小型实时操作系统和嵌入式TCP/IP协议栈,详细阐述了Web Service的实现过程,包括HTTP接收,XML与SOAP协议的解析,以及同具体服务实现的绑定,并针对嵌入式环境下资源受限的特点,给出了相应的优化方法。使用专用测试软件进行的压力测试表明,该实现运行稳定,具有良好的可行性。     

Fine-Grained Data Processing Framework for Heterogeneous IoT Devices in Sub-aquatic Edge Computing Environment

Wireless Personal Communications - Sub-aquatic data processing is a procedure that exchanges datasets through underwater sensory devices in the distributed computing environment. This paradigm has...     

数字环境下的参考图书馆服务研究

参考图书馆是图书馆的一种,其在出版中扮演着重要的角色,它可直接提供参考,寻找或验证基本事实;也可找到某人、地点、事件、时期或其它问题的语境方面的关系。前者的完成需要有适当的单源;后者的完成需要有精选的来源不同的参考资源,如字典、百科全书、地图、目录和传记词典。但参考图书馆服务尚未有效过渡到数字图书馆环境。研究的重点是使参考馆员有足够的权利。另外,强调有必要赋予图书馆用户一定的权利、重视书目的在线访问和给出更全面的看法。     

下一代服务环境中的电信欺诈及管理对策

在过去的十多年里,电信欺诈问题一直是困扰整个电信行业的一个棘手难题。据美国通信欺诈管制协会(CFCA)2003年公布的一份市场调研报告显示,全球电信业每年因各类欺诈因素造成的经济损失在1999年时为120亿美元,而到2003年,这一数字则跃升至350亿～400亿美元。该协会当年对26个国家的通信运营企业所做的调查发现,     

Efficient Deployment of Multiple UAVs for IoT Communication in Dynamic Environment

The application of unmanned aerial vehicle(UAV)-mounted base stations is emerging as an effective solution to provide wireless communication service for a target region containing some smart objects(SOs)in internet of things(IoT).This paper investigates the efficient deployment problem of multiple UAVs for IoT communication in dynamic environment.We first define a measurement of communication performance of UAVto-SO in the target region which is regarded as the optimization objective.The state of one SO is active when it needs to transmit or receive the data;otherwise,silent.The switch of two different states is implemented with a certain probability that results in a dynamic communication environment.In the dynamic environment,the active states of SOs cannot be known by UAVs in advance and only neighbouring UAVs can communicate with each other.To overcome these challenges in the deployment,we leverage a game-theoretic learning approach to solve the position-selected problem.This problem is modeled a stochastic game,which is proven that it is an exact potential game and exists the best Nash equilibria(NE).Furthermore,a distributed position optimization algorithm is proposed,which can converge to a pure-strategy NE.Numerical results demonstrate the excellent performance of our proposed algorithm.     

复杂环境下多移动机器人控制算法研究

针对相互速度障碍法(RVO)避障速度理论上可选而实际应用中不可达的问题,综合考虑相互速度障碍法和动态窗口法(DWA)的优缺点,将两种算法进行融合,对可选避障速度进行运动学约束.进一步,针对复杂环境下多移动机器人相遇过程中膨胀半径可能导致移动机器人避障失败的问题,又提出了膨胀半径可变的自适应相互速度障碍法(ARVO).该...