Essays on Data Transmission

I. Physical Network Design

Introduction

A. Network Topology Business Needs In order to complete the needed full-time assignment efficiently and effectively, the University of Maryland University College will need a system in addition to tools to help the student attain their objectives. This entails new office space, a library, classrooms and computer labs will be able to achieve this capacity and optimize student learning potential

Proposed Topology

In order to plan for the facility of the network, I am proposing a star network topology for the facilities networking. This kind of network infrastructure is considered expensive due to numerous network devices that ...

IT 331 Week 2

IT 331 Week 2 Describe the series of connections that would be made, equipment and protocol changes, if you connected your laptop to a wireless hotspot and opened your email program and sent an email to someone. Think of all the layers and the round trip the information will likely make. The first thing you need to do is to turn on the wireless hotspot and to search for the available Wi-Fi connections. Choose the needed one and enter the required login and password; this information acts as the encryption key that transmits traffic. Then, open the email app; ...

ABSTRACT

With the growth in computer networks that are used in organizations, there is a need to have a way in which networks are managed and monitored. This phenomenon is taking shape as more and more companies develop new applications to sustain their networks. There different types of traffic that are found to be traversing computer networks need to be monitored. SNMP management console is one of Network Instruments application that brings cross-platform SNMP standards to the Observer. Network administrators and consultants will find SNMP management tools important in the monitoring, diagnosis and repair of networks. Network monitoring helps in having continued ...

In the contemporary computer technology environment, networking has become the order of the day since it reduces physical movement of people so as to deliver and collect information. In fact, networking has become so important to a company or any organization that even the smallest computer based organization seeks to have a computer network. However, in the process of setting up a computer network several factors have to be considered. Some of the basic considerations are discussed below.

One of the factors to consider is hardware requirement. This is dictated by the type of network that a company of computer owner wants. Most ...

White noise entails a sound frequency that a person can hear in the form of a gentle hiss (Proakis, 2013). In essence, white noise resembles the sound heard from an ocean surf, waterfall, radio static or wind rustling through vegetation or trees. White noise affects the signal because of the electron activity, which occurs in a given medium. More specifically, the electron activity tends to increase with an increasing temperature, and this raises the noise. Too much white noise often makes it cumbersome to interpret a signal and can sometimes lead to loss of a signal.

What Is Impulse Noise And Why Is The Most Disruptive?

According to White (2013), impulse noise entails the common ...

EXECUTIVE SUMMARY

Ethernet has been termed as the most ubiquitous networking interface in the world. Almost all traffic passes through multiple Ethernet links. The point is that majority of the Ethernet links spend time while idle waiting between packets of data transfer, but consuming power at a near constant rate. In fact, on average, 10% of all IT power is consumed by network devices and network interfaces translating to tens of TeraWatts hour per year. A solution lies in the design of green networks which consume minimal power while idle without losing their functionality. In this research paper, Energy Efficient Ethernet is ...

Abstract

In this thesis, the security concerning the near-field communication and its applications will be investigated. A thorough risk assessment is performed on the threats, attacks and the fraud scenarios related to NFC. It goes on to argue against the statement as per the standard that NFC is safe by its design, because it works in close proximity only. It discusses the possibility of eavesdropping along with other possible hack attacks. The impact of the attacks is analyzed and the best possible solutions are discussed. It goes without any debate that the first and the foremost authentication that needs to ...

AbstractInformation technology disaster recovery plan is a critical asset in a business organization. It allows effectively and quickly processing of information. The employees in any organization make use of voice over internet protocol and electronic mails when communicating. The data transmission between different department make uses electronic data interchange. When is the need for an effective security system to be used and especially when handling critical data such as payment data. Wireless devices personal computers and laptops used by employee’s when creating managing, processing and communication uses information technology resources.A disaster recovery plan like setting up an alternative processing site ...

Research paper

Wireless Application Protocol WAP (Wireless Application Protocol) - protocol for wireless data transmission, widely used for the development of Web pages, specifically designed for display of cellular communication systems on mobile subscriber units. At first we should consider the background that led to the creation of WAP. Many users of the World Wide Web around the world use the Internet to communicate with their friends and colleagues, to send and receive emails, watch world news, weather, etc. Therefore, with the emergence of the data transmission capabilities in cellular systems immediately appeared a desire to provide access to the Internet ...

INTRODUCTION

The protocols at the transport layer of the OSI reference model provides an end-to-end data delivery service for application processes to exchange messages over the Internet. Protocols operating in the Transport layer use the services of the Internet Protocol (IP) to deliver messages. Many protocols exist at his layer and one of the most important protocols at this layer is Transmission Control Protocol (TCP) for the delivery of data between the Application Layer and the Internet Layer. The shortcoming of IP to guarantee the delivery of datagrams is overcome by TCP by setting up a virtual circuit between the communicating ...

Data compression algorithm for wireless sensor networks

Abstract There is an increased use of wireless networks in organizations. There also the use of Wireless Sensor Network (WSN) that is used for monitoring the environment. The two basic activities that are involved in WSN include data acquisition and data transmission. The problem with the process of transmitting and acquiring tasks is that there is high power consumption. This needs the use of data compression so that there is reduced consumption of power. This paper will analyze algorithms that are used in Wireless Sensor Networks to undertake data compression. In particular, there will be the analysis of ...

Wireless communication refers to transmission of data or signals via electromagnetic waves. In other words, it is a form of communication that does not involve the use of wires. Instead, radio and microwaves are used to transfer data or signal from one device to another. The first wireless transmission system was developed in early 20th century. This system used Morse code which was a combination of dots and dashes or long and short electric signals assigned to each letter of the English alphabet. The signals were sent and received via wires. This enabled transmission of text based information over a long distance. ...

Affiliate institution

With the proliferation of information technology organizations and businesses have adopted its usage as leverage in boosting its business activities. Networking is inevitable in 21st century business environment. This networking involves businesses, customers, suppliers, regulatory authorities among other key business participants. Each party has its own system which is not compatible with each other. Internetworking technologies comes in handy to solve the problem of interoperability amongst the various business systems (Comer, 2008). Computer network has been defined as the interconnection or linking of two or more computing components and resources (Akyildiz, et al., 2002). Internetworking emerged as means ...

Introduction

ADSL (Asymmetric Digital Subscriber Line) is a modem technology that is available channel bandwidth is shared between the outgoing and incoming traffic is asymmetric. Since most users have incoming traffic volume is much higher than the volume of outgoing, the rate of outgoing traffic is significantly lower. This restriction was uncomfortable with the spread of peer-to-peer networks and video.

History of development

History of the development of ADSL technology started in the second half of the eighties, when were searching technology for interactive television. Pioneer family of technologies xDSL is a company Bellcore; in 1987, it introduced the first specification of a family of technologies ...

Data compression algorithm for wireless sensor networks

Abstract There is an increased use of wireless networks in organizations. There also the use of Wireless Sensor Network (WSN) that is used for monitoring the environment. The two basic activities that are involved in WSN include data acquisition and data transmission. The problem with the process of transmitting and acquiring tasks is that there is high power consumption. This needs the use of data compression so that there is reduced consumption of power. This paper will analyze algorithms that are used in Wireless Sensor Networks to undertake data compression. In particular, there will be the analysis of ...

Introduction

Networking has been enhanced with the introduction of techniques to enhance the techniques that have been used in the networks. The process of communication in various channels undergoes a long process. This paper will focus on the multiplexing and how it enhances communication. It has a role it plays in networking (Abrams, 2004). The term multiplexing as refers to the process of converting many data communication lines or signals into a single data communication line or signal for transmission (www.computing.net) the main aim is to optimize utilization of the transmission channels given that several users share the same channel (Stallings, 2009). ...

There has been a recent global rise in the use of voice and data integration which is equally important to network designers of both enterprise and service providers. Data transmission and voice communications involves the physical transfer of data over a point-to- point data channel. The data transmitted may simply be digital messages originating from a data source, e.g. from a computer or a keyboard. It may also include a phone call, an analog or a video signal, that is digitized into a bit-stream The use of data transmissions and voice communications has rapidly accelerated in the past years due to both demand and supply side ...

Chronologically from the first generation of telephony (1G) that carried only analog voice data, to the current fourth generation (4G) of mobile technology, telecommunications have evolved over the years to cater for the growing networking demands of present day mobile communications users. Each generation has been developed building upon the previous technology to improve on it in order to deliver better services. The generations (G) specify the classes of technology, each having its own data rates and devices associated with it. - EVOLUTION OF MOBILE COMMUNICATION NETWORKS The 1G cellular networks started in the early 1980s and ...

In computer network analysis, there are several network designs usually deployed by different users due to different adaptations and the type of processing or transactions required for the business. This is mainly because there are some factors that affect the basic design and the type of networking equipment required. However, in each and every network design, there are six sub-sections which are present. These subsections are discussed below in some details to enable the network owner understand operation of the required network and how it will be set up. These subsystems or subsections include: entrance room, backbone cabling, ...

Introduction

With wireless services that are growing by the day, there is a need to have wireless networks. Wireless networks are becoming essential services for many people. With wireless networks comes security. Security is an important factor when connectivity is concerned. Important data is stored in devices that are connected. There is therefore a need to have secure network so that the data that is being stored is secure and safe from attacks. This paper will look at the wireless networks and their security issues. It will particularly look at the GPRS, 3G and 4G. The advent of digital systems has ...

Question one: Briefly identify and explain the rationale behind the area of law that covers the legal issues arising out of the case study? The data Protection act of 1998 gives a guideline on the privacy (without its mention) that should be maintained of the information held by a second party regarding a first party. The act regulates the power of data movement from the person who holds it. This is primarily set to ensure that there is no illegal and unauthorized use of personal data. The act defines personal data as shows the limits of the protection. Further, the law ...

Network Test Equipment

Every computer network is distinctive and is prone to various challenges, which may help to guarantee the correct transmission today and tomorrow. It is critical for the network administrator to analyse the network hardware equipments and network software to obtain a sense for smooth transmission, often called a baseline. In the instance that errors occur, the network administrator may be competent enough to determine from the indicator lights or by using network test equipments where the source of the transmission error originates. For instance, the network administrator would effortlessly recognize if indicator lights were out that are supposed to be on. ...

Affiliated institute

Introduction Have to send an urgent mail, and you are in a flight or train with no internet connectivity. Want to link your devices, access mails when you not at desk, etc., Bluetooth and Wi-Fi could be the solution to this. These are the two terms which are known and common to all of us today. Bluetooth and Wi-Fi is a technology that allows one to access information and connect to devices and peripherals without wires and cables. Hence it is hassle free and convenient usage for the people as it allows one to operate freely with your resources within a ...

Abstract

After several unsuccessful attempts in preceding years, the first successful transatlantic cable installation was successfully installed and commissioned in 1866. This giant step in global communications was the first of many cable installations that gave the United States the technology to break away from the physical and intellectual isolation from Europe and the rest of the world. Starting with the telegraph, followed by the telephone and most recently the Internet; the government, business sector and finally the general public were given access to increasingly accessible and affordable bi-directional and interactive communications. The technology of telecommunications has provided a most efficient ...

Packet switching vs. circuit switching

Packet switching is a form of transmission technology that allows the transmission of data in small separate groupings or blocks basically known as packets (Rosner, 1982). Each packet contains the destination address, therefore seeking its own path. Circuit switching on the other part employs a technology whereby a destination path (dedicated path) has to be established in order for data to be transmitted. The dedicated path remains in use for the entire period of transmission and is only released after completion of transmission (Dhotre, 2006). It differs from packet switching in that, in circuit switching the whole message/data is send through a dedicated ...

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Purpose and function of TCP/IP

The Transmission Control Protocol/Internet Protocol (TCP/IP) suite is a set of protocols that describe the functions necessary for sending data over a network. These protocols define acceptable data formats and standards for passing messages, handling errors and for communication. The suite provides the foundation for many crucial services such as file transfer, electronic mail, remote login, network monitoring among others[ CITATION Tan03 \l 1033 ]. It is designed to separate the functions of the various facets of data transmission. International open standards make is possible for different companies to write software that is compatible. When data is ...