一种基于能量优化的无线传感网络自适应组织结构和协议

本文提出了一种新的无线微传感器网络协议和组织结构ALEP。与传统的无线微传感器网络协议相比，ALEP更加充分地考虑到实际应用，将一种高效能量控制算法引入组网协议，提高了网络的能量利用率，显著延长了无线网络的生命周期，增强了网络的健壮性。通过对ALEP协议进行OPNET仿真，结果显示该协议与传统模式的无线微传感器网络协议相比，在传送相同的数据量的条件下有更高效的能量特性和信息传输特性。     

一种利用约束Viterbi算法改进IS95协议信道编码的方法

IS95具有两个速率集,在同一个速率集中,不同的速率其数据帧的长度不同,为了使进入正交调制的数据帧的长度相同,其采用了信号重复器.信号重复器进行简单的重复作用,使得带宽不能充分利用.文中提出的方法利用一个信号发生器,产生已知的信号进入卷积编码,卷积编码后的数据帧长度同样符合要求,而信号发生器产生的已知信号在译码端可以作为译码时的约束条件进行约束Viterbi译码.在BSC信道模型的仿真结果证明,其在较高误码率的情况下具有较好的性能.     

基于现场总线技术的工业控制系统研究

现场总线是现代工业控制技术的发展方向,对于现场总线来说,其特点是现场通信、现场设备互联,具有较好的互操作性,并且功能模块分散化,同时具有开放式互联网等。本文通过对现场总线技术,以及通信协议进行仔细分析和研究,对几种常用的现场总线进行比较,说明了由其构成的工业控制系统的结构,最后针对CAN总线设计了一种工业控制系统并强调了在设计中所需注意的问题。     

基于不同节点移动模式的无线自组网路由协议性能分析

本文采用NS2网络仿真软件,随机建立包含100个节点的网络拓扑,在节点静止、缓慢移动和快速移动条件下,分别对AODV、DSR和DSDV三种路由协议的数据包端到端时延、抖动和吞吐量的变化趋势进行比较分析。仿真结果表明,在网络规模较大且网络拓扑变化不频繁的情况下,DSDV具有一定的优势;在网络规模较大且网络拓扑多变的情况下,AODV和DSR性能明显优于DSDV。     

基于JESD204协议的AD采样数据高速串行传输

为解决传统采样数据并行传输时受码间同步及串扰影响的问题,研究了ADC采样数据的高速串行传输协议——JESD204协议,提出了一种具有自主知识产权的、基于FPGA中高速串行收发器GTX实现JESD204协议IP核的方法,实现了对ADC采样数据的高速串行传输并接收。实验表明,采用基于JESD204协议的高速串行传输方式可实现单通道3.2 Gb/s的传输速度,符合机载通信终端小型化的发展趋势。     

私有协议与标准化的知识产权政策

在对电信市场的网络效果、转换成本以及标准经济性质分析的基础上,本文探讨厂商在私有协议、产业标准化和机构标准化竞争中采取的知识产权政策。在ICT市场里,市场选择决定胜出的私有协议,厂商采取的基本策略是先松后紧的知识产权政策。产业联盟的厂商在产业标准化上既竞争又合作,他们都试图运用有效的知识产权政策和市场策略赢得标准谈判更大的筹码。在机构标准化竞赛中,厂商会采取适度温和的知识产权渗透政策和“脚踏两只船”的风险分散策略。中国厂商相应采取科学的知识产权政策对于赢得私有协议和标准化起着关键性作用。     

多媒体教学网络的组建

介绍了多媒体教学网络的组建方法 ,对网络的拓扑结构、网卡、网线的选取 ,网络的系统配置 ,网络的软硬件资源共享 ,网络打印机的使用等作了详细的论述。对学校组建多媒体教室有一定的参考价值。     

Consumer cynicism: Interdisciplinary hybrid review and research agenda

Over the years, consumers have been questioning the intentions and actions of firms, resulting in a cynical attitude and behaviour. Due to the severity of the outcomes that cynical consumers may display, reputed journals and prolific researchers have addressed the core issue in their own unique ways. However, no single study offers a uniform, comprehensive, and contemporary review of consumer cynicism literature. Thus, we use an interdisciplinary approach to study the literature spanning 47 years (1976–2022) on cynicism in consumer research, psychology, and organizational domains through a hybrid review involving bibliometric and systematic literature reviews. Following the SPAR-4-SLR protocol, this review shows the most cited and co-cited articles, researchers, and keywords in cynicism research. We infer that the consumer cynicism construct draws heavily from the organizational behaviour area, possessing the potential to be correlated with, and extended to interdisciplinary research. Also, we offer an all-inclusive model of the predictors and predictands of consumer cynicism based on the ADO-TCM framework. We close this study with its academic contributions, practical implications, and future research directions using the ADO-TCM framework.     

Classifying responsible investors: Identifying clusters of Ontario investors

Little empirical research has explored Canadian investors' interest in responsible investing. A variety of demographic and attitudinal characteristics can contribute to who makes ethical investments. Using a survey of 1,834 residents of Ontario, Canada three groups of investors are identified: those interested in responsible investments who actively avoid investing in some sectors, those interested in responsible investments who do not actively avoid any types of investments, and traditional investors that are not interested in responsible investing. Demographic and attitudinal variables that explain who falls into which group are explored.     

Trading under the proof-of-stake protocol – A continuous-time control approach

We develop a continuous-time control approach to optimal trading in a Proof-of-Stake (PoS) blockchain, formulated as a consumption-investment problem that aims to strike the optimal balance between a participant's (or agent's) utility from holding/trading stakes and utility from consumption. We present solutions via dynamic programming and the Hamilton–Jacobi–Bellman (HJB) equations. When the utility functions are linear or convex, we derive close-form solutions and show that the bang-bang strategy is optimal (i.e., always buy or sell at full capacity). Furthermore, we bring out the explicit connection between the rate of return in trading/holding stakes and the participant's risk-adjusted valuation of the stakes. In particular, we show when a participant is risk-neutral or risk-seeking, corresponding to the risk-adjusted valuation being a martingale or a sub-martingale, the optimal strategy must be to either buy all the time, sell all the time, or first buy then sell, and with both buying and selling executed at full capacity. We also propose a risk-control version of the consumption-investment problem; and for a special case, the “stake-parity” problem, we show a mean-reverting strategy is optimal.