...Teleconferencing, also known as VTC, is a telecommunication technology that allows different locations the ability to have a two-way video and audio communication simultaneously. This allows business meetings to take place in the privacy of their own office or home no matter where they are located in the World. VTC is becoming popular choice for meetings, and colleges, the military utilizes VTC in classrooms and families of deployed service members can communicated from overseas with one another. There are advantages and disadvantages to VTC. In order to understand the advantages and disadvantages, one must first understand how the technology system operates. VTC uses a digital compression of both video and audio in real time. Ones and zeroes are used in digital technology and are subdivided into what is called label packets. These packets are then transmitted through the digital network where they are converted between analog and digital format. In order to convert the signals a Coder/Decoder or CODEC is used. Some items that are required consist of video camera, computer, microphones, monitors, webcam, speakers, internet or landline, television, or projector. The computer is “a data processing unit that ties together the other components, does the compressing and decompressing, and initiates and maintains the data linkage via the network.” (Videoconferencing) Later in the paper, I will go into more detail of the VTC structure. Advantages to VTC consist of economic pressure...
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...Recommendations and Guidance for VTC Enterprises David Vasquez California State University, Long Beach PPA-525 – Tuesdays Presented to: Dr. Sundstrom December 4, 2012 Final Paper Overview of the nonprofit sector The nonprofit sector is the collective name used to describe institutions and organizations in American society that are neither government nor business. (“What is the Nonprofit”, n.d.) Outside the United States, nonprofits are often called nongovernmental organizations (NGOs) or civil society organizations. (Campbell, 1987) However within nonprofit organizations there are other names which emphasize the characteristics that distinguish nonprofits. Essentially they are categorized as: voluntary sector to acknowledge the importance of volunteers and voluntary action, independent sector to distinguish nonprofits from business and government, and social sector to underscore how the activities of nonprofits enhance the social fabric of our country. (Anheier & Seibel, 1990) Nonprofit organizations, unlike businesses do not exist to make money for owners or investors; instead these groups are dedicated to a specific mission. There are currently more than 1.6 million organizations. (McSween, n.d.) About one million of them are public charities that employ over seven percent of the country's work force, close to 10 million paid workers. (“What is the Nonprofit”, n.d.) Careers in nonprofit management Nonprofit institutions play an important role in community life...
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...Principles of MIS Term Paper Introduction Polar Semiconductor, INC (PSI) is located in Bloomington, Minnesota. It is a wholly owned subsidiary of Japan-based semiconductor manufacture, which is Sanken Electric Company, Ltd. Sanken Electric Company, Ltd own the PSI Facility since 2005. Before 2005, different companies owned the facility. In 1970, the company was owned by Control Data Corp and operated as its Microcircuits Division; they used to build pre-amp chips for disk drives. In 1984, VTC Inc acquired the facility for Fifteen years, and then VTC sold a portion of it to Lucent Microelectronics. After the partial sale to Lucent in 1999, VTC’s management operated the facility as Polar Fab for several years, by producing silicon wafers for other firms until the Japan-based semiconductor manufacture bought the facility and named it Polar Semiconductor, INC (PSI). Currently PSI occupied 200,000-square-foot area, which includes 62,000 square area feet of clean room space that the company are using to produces wafer. Wafer fabrication is a very time-consuming and complicated procedure. It is the process of building integrated circuits on silicon wafers. According to Twin Cities Business magazine report, (PSI) has a plan to expend the facility by adding on their present 200,000 square-foot facility that located in Bloomington. By the time when the new expansion completed...
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...(MNGT 5590) ten weeks ago, I decided to print all documents related to it. Upon reading that an Integrative Paper was required to complete the course, I wondered how best to accomplish this task. According to MGNT 5590’s catalogue description, the intent of the course is to introduce students to the basic principles of human behavior effective managers’ use when managing individuals and groups. This include theories related to individual differences in abilities and attitudes, attribution, motivation, group dynamics, power and politics, leadership, conflict resolution, organizational culture, and organizational structure and design. This same description can be best summed up in “The Heart of Change” – Real Life Stories of How People Change Their Organizations. To fulfill the final requirements of MNGT 5590, it is my intent to provide a summation of The Heart of Change, how the books ties into the course’s main text, “Organizational Behavior and Management, and how both books are interwoven into various facets of my life, and finally, I will provide some closing thoughts related to my interest in the Heart of Change and the class in general. Written by John P. Kotter and Dan S. Cohen in 2002, the Heart of Change is based on Leading Change, a book written in 1996 which described how it is not systems or strategies that make organizations successful. Rather, it is the human nature (behavior) of people that make...
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...it is understandable that concepts related to waveforms or signals are extremely important as their applications exist in a broad variety of fields. The processes and ideas related to waveforms play a vital role in different areas of science and technology such as communications, optics, quantum mechanics, aeronautics, image processing to name a few. Even though the physical nature of signals might be completely different in various disciplines, all waveforms follow one fundamental principle; they can be represented by functions of one or more independent variables. This paper would focus on the concept of Fourier Transform, the technique through which signals can be deconstructed and represented as sum of various elementary signals. It briefly describes Linear Time Invariant systems and their response to superimposed signals. Fourier transform has many applications in physics and Engineering. This paper would also cover some of Fourier Transform applications in telecommunication and its impact on society. Introduction Some of the basic signals that exist in the world and are useful in various technology fields are continuous and discrete time signals. These signals depend on a single independent variable. Generally the independent variable is considered to be time (though it is not universally true).We will focus our discussion on the signals which are considered to be a function of a single independent variable. With the use...
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...still open issues in 4G networks. The growing interest in 4G networks is driven by the set of new services will be made available for the first time such as accessing the Internet anytime from anywhere, global roaming, and wider support for multimedia applications. In this paper describe some of the key opportunities will be made available by 4G networks, present key challenges and point to some proposed solutions. Index Terms—4G networks, Wireless Networks, Security and Privacy, Quality of Service, Architecture I.INTRODUCTION The existence of 4G Networks in today’s technology-driven society is important indicators of advancement and change. 4G, or Fourth Generation networks, are designed to facilitate improved wireless capabilities, network speeds, and visual technologies. It is anticipated that as these networks continue to thrive, the demand for advanced related technologies will also grow, thereby creating new alternatives for savvy technology users to exceed their desired expectations. The following discussion will evaluate the current state of 3G Networks and will examine the future potential of these networks in expanding technology-based capabilities for consumers and industries alike. In this paper we present an overall vision of the 4G networks starting by presenting some of the key features they will provide, and then discussing key challenges the researchers and vendors are attempting to resolve, and finally briefly describing some of the proposed solutions to these...
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...still open issues in 4G networks. The growing interest in 4G networks is driven by the set of new services will be made available for the first time such as accessing the Internet anytime from anywhere, global roaming, and wider support for multimedia applications. In this paper describe some of the key opportunities will be made available by 4G networks, present key challenges and point to some proposed solutions. Index Terms—4G networks, Wireless Networks, Security and Privacy, Quality of Service, Architecture I.INTRODUCTION The existence of 4G Networks in today’s technology-driven society is important indicators of advancement and change. 4G, or Fourth Generation networks, are designed to facilitate improved wireless capabilities, network speeds, and visual technologies. It is anticipated that as these networks continue to thrive, the demand for advanced related technologies will also grow, thereby creating new alternatives for savvy technology users to exceed their desired expectations. The following discussion will evaluate the current state of 3G Networks and will examine the future potential of these networks in expanding technology-based capabilities for consumers and industries alike. In this paper we present an overall vision of the 4G networks starting by presenting some of the key features they will provide, and then discussing key challenges the researchers and vendors are attempting to resolve, and finally briefly describing some of the proposed solutions to these...
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...BIT 2305: HCI Introduction 1. Introduction to HCI Humans 2. Human Cognition 3. Perception and Representation 4. Attention and Memory 5. Knowledge and Mental Models 6. Interface metaphors Interactions 7. Input 8. Output 9. User Support 10. Interaction Styles 11. Information Architecture and Web Navigation User-Centred Design 12. User-Centred Design 13. Methods for User-Centred Design 14. User-Centred Web Design 15. Usability Engineering 16. Guidelines and Standards 17. Prototyping 18. Evaluation 1 Computer Supported Cooperative Work Cooperative working Classification of CSCW systems Groupware Systems Organization contributions. Applications of multimedia systems in learning, computer vision, and entertainment. 2 BIT 2305: HUMAN COMPUTER INTERACTION INTRODUCTION TO HCI Human Computer Interaction (HCI) is concerned with studying ways to design, prototype, evaluate and implement user interfaces that are easy to learn, efficient and pleasant to use. Often it is hard to learn a new tool. This is particularly the case in the complicated world of the computer where there are many different technologies (software tools) and many different ways to access them (different hardware and different screen layouts). Bridging the gap between the technology and the user – making the technology easy to learn and easy to use – is concern and the task of the “user interface”. User refers to the different people who might be using a certain tool. In these...
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...The Change Plan PROPOSALS BY THE CHANGE MANAGEMENT TEAM TO THE SECRETARY-GENERAL United Nations NEW YORK, DECEMBER 2011 The Change Plan TABLE OF CONTENTS Acknowledgement ........................................................................................................................................ 01 1. Executive Summary ................................................................................................................................. 02 2. Introduction ........................................................................................................................................... 09 3. Context ................................................................................................................................................... 10 4. The Secretary-General’s Vision ................................................................................................................ 12 5. Deliverable One – Enhancing Trust and Confidence: Towards a more stakeholder and client-oriented organizational culture ............................................................................................. 13 6. Deliverable Two – Engaging Staff: A global, dynamic, adaptable, meritocratic and physically secure work force. .......................................................................................................... 19 7. Deliverable Three – Improving Working Methods: A more open and accountable UN with streamlined procedures...
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...5.5.4 Dynamic Power Consumption Static Consumption Putting It All Together Analyzing Power Consumption Using SPICE 5.4 Performance of CMOS Inverter: The Dynamic Behavior 5.4.1 Computing the Capacitances 5.6 Perspective: Technology Scaling and its Impact on the Inverter Metrics 180 Section 5.1 Exercises and Design Problems 181 5.1 Exercises and Design Problems 1. [M, SPICE, 3.3.2] The layout of a static CMOS inverter is given in Figure 5.1. (λ = 0.125 µm). a. Determine the sizes of the NMOS and PMOS transistors. Solution The sizes are wn=1.0µm, ln=0.25µm, wp=0.5µm, and lp=0.25 µm. b. Plot the VTC (using HSPICE) and derive its parameters (VOH, VOL, VM, VIH, and VIL). Solution The inverter VTC is shown below. For a static CMOS inverter with a supply voltage of 2.5 V, VOH =2.5 V and VOL=0 V. In order to calculate Vm , note from the VTC that the value is between 0.8 V and 0.9 V. Therefore, the NMOS is saturated and the PMOS is velocity saturated. Let Vin=Vout=Vm and set the currents equal to obtain the following equation:...
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...o delgad@encs.concordia.ca Brigitte Jaumard CIISE, Concordia University Montreal, Qc, H3G 1M8, Canada Email: bjaumard@ciise.concordia.ca Abstract—In this paper, an admission control (AC) scheme is proposed for handling multiclass Grade of Service (GoS) and Quality of Service (QoS) in Uplink Long Term Evolution (LTE) systems. GoS requirement in conjunction with QoS has been seldom taken into account in previous admission control and resource allocation algorithms for LTE uplink. We propose a novel algorithm for handling the priorities while fulfilling the QoS objective of all granted requests. It corresponds to a solution that combines resource allocation and admission control properties to satisfy the GoS and QoS objectives. Call blocking probability, call outage probability, system capacity and number of effectively served requests are used as performance metrics. Numerical results show that it is possible to manage a priority scheme which satisfies the QoS constraints of all granted requests without any system capacity loss, when comparing to previous algorithms. Furthermore, the proposed AC algorithm gain, for the most sensitive traffic, can be around 20% over the reference AC algorithm. Index Terms—QoS, Priority, Admission Control, Scheduling, LTE, Uplink, Delay. I. I NTRODUCTION Long Term Evolution systems (LTE) are designed to transfer all kinds of traffic, such as voice, video, data, etc, through packet switched networks based on Internet Protocol (IP). In order to...
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... researchers, academia, politicians and the industry. CR promises to bring a paradigm shift in spectrum management policies from command-and-control regime to dynamic and opportunistic spectrum access. Despite more than a decade of research in the CR area, there are too little CR systems ready for the market. This lack of ready CR systems may reflect an overemphasis in the CR literature on theory and simulations with less work done in experimental-basedresearch and publications. In order to fast-track the real-life deployments of CR systems, the research community is now focusing on the development of CR platforms. With different software defined radio (SDR) packages and hardware available, it is confusing to decide which one to build or use. The objective of this paper is to study the design of CR platforms making use available SDR software packages and hardware. Our conclusion is that CR research should now focus on experimental-based results using real-life CR platforms in order to realize market-ready CR systems. Cognitive radio (CR) technology has become one of the hot research topics in wireless communications network over the past twelve years. CR is an intelligent wireless communication system capable of changing its transceiver parameters based...
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...business operations having a foothold in technology there is a severe need for e-etiquette. What is Driving Technology in Business? In today’s era of business there would be a severe lack of production if the power goes out. With the advancement’s and availability of computer technology in business, there has been a significant shift in the way day-to-day business operations are conducted. The introduction of the computer and data processing capability to the business world transformed the workplace. Unlike the traditional typewriter, the computer brought with it the ability to easily store and correct documents without having unsightly spots of “white-out”. The usage and utilization of computers, computer systems and information technology (IT) applications in every aspect of business is now routine. Wide-ranging means of connecting to and access technologies with computing interfaces expedite communication between employees and with business partners, suppliers, customers, or other stakeholders. With the plethora of software, production tools and networking applications installed in computers, it enables employees in a business to streamline their workflow and accomplish assigned tasks quicker. “Over a million business presentation are given every day. Business leaders use presentations to communicate to colleagues, customers, and stakeholders in an effort to clearly convey relevant information” (Satterlee, A., 2009, p. 145)....
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...Abstract—In this paper, we investigate the maximum inter-site distance (ISD) for performing joint signal processing between cooperative base stations. As a metric, we use the maximum excess delay measured at 95% point of the cumative power delay profile from all base stations. For the distance-dependent channel parameters, we consider Greenstein’s statistical propagation model, which we extended for broadband transmissions. We extract all model parameters from 2.6 GHz multi-cell measurements in our field trial and parametrize the model at a fixed ISD. We also investigate the impact of antenna downtilt and find that when a larger downtilt is used, the rms delay spread and 95% excess delay are smaller. However, there are critical 3D effects close to the sites not included in the model. Then we consider larger ISDs and indicate how the delay parameters grow. Based on Greensteins model, the short cyclic prefix in LTE is hardly violated for realistic ISD at 2.6 GHz. I. I NTRODUCTION Base station cooperation is envisioned as a promising technique for future mobile networks where the carrier frequency shall be fully reused. It reduces the mutual interference between adjacent radio cells and increases significantly the spectral efficiency [1]. In the downlink, multiple antennas at multiple base stations are considered as inputs and multiple terminals served in the corresponding cells are considered as outputs of a distributed multiple-input multiple-output (MIMO) system. Recent...
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...IJCSI International Journal of Computer Science Issues, Vol. 8, Issue 5, No 3, September 2011 ISSN (Online): 1694-0814 www.IJCSI.org 256 Comparative Study of 3G and 4G in Mobile Technology K. Kumaravel Assistant Professor Dept. of Computer Science, Dr. N.G.P. Arts and Science College, Coimbatore, India – 641 048 Abstract—Mobile communication is one of the hottest areas and it is developing extremely fast in present times, thanks to the advances of technology in all the fields of mobile and wireless communications. Nowadays the use of 3G mobile communication systems seem to be the standard, while 4G stands for the next generation of wireless and mobile communications. This comparative study between 3G & 4G tells about the background and the vision for the 4G. We first present a review on the development history, characteristics, status of mobile communication and related 3G - 4G perspectives. An overall 4G framework features, having the basic keys (diversity and adaptability) of the three targets (terminals, networks, and applications). We present it in both external and internal diversity of each target to illustrate the causes and solutions of the adaptability feature. Then, the 4G domain of each feature in the framework is discussed from technical point, showing techniques and possible research issues for sufficient support of adaptability. At the end, a summary on 4G visions and some of the issues this new technology may face. Keywords: OFDM, HSPA, LTE, MIMO, MC-CDMA, WCDMA...
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