IFDM Communication Systems

All goals must be measurable to then measure the progress towards the successful outcome, to measure progress is to monitor and access success and achievement.

Something that really struck out to me was the topic of networking. In Chapter 2, author, Don Raskin goes into depth about the importance of networking. What Raskin says about networking really makes a lot of sense because it is much easier for companies to make hiring decisions based on recommendations from a trusted source than hiring someone through the interviewing process. Employers can get an idea of who the interviewees are, but having people recommended to them makes their job way easier. Networking is something that I will definitely do to my fullest when I look for an internship/job. Getting to know many influential people that will help me better my career will really set me aside from others. Having as many connections as possible

There is a wide range of communications technology that is used by the Public Services. Every Public Service uses some form of technological equipment as it is vital to carry out their duties effectively and efficiently. Depending on what job they are required to do, they will use different types of technological equipment. Communications technology being, The Police National Computer, Roaming network, Radios, Cormorant digital voice, Local Area Network and Satellite communications.

As the Navy beings its transition to the Joint Information Environment (JIE) and Joint Regional Security Stack (JRSS) implementation and transition, N313 will be tasked WITH tracking and providing oversight of all Navy JIE/JRSS related ASI’s in addition to tracking and coordinating all NMCI maintenance action, DISA and High Frequency Global Communications System (HFGCS) Authorized Service Interruptions (ASI), Periods Of Non Disruptions (PONDS) and associated drafting and tracking TASKORDS/FRAGORDS, Maintenance Moratoriums (MM) and associate TASKORDS/FRAGORDS and waiver actions, and OCONUS Navy Enterprise Network (ONE-Net) Request for Change (RFC) process.

As per our conversation three weeks ago, I requested you to submit a new fee structure plan, to continue doing work for Subcarrier Communications.

Subcarrier Communications is a high-performance telecom infrastructure development and site management company since 1986. In addition, Subcarrier specializes in the ownership, development and management of high-capacity telecommunication towers. We serve the federal government, wireless carriers, broadcasters, municipalities, including a nationwide portfolio of business clients requiring advanced telecommunication needs.

WorldCom was founded in 1983 under the name LDDS Communications, and was considered the second largest long distance company in the nation. According to the Reference for Business website, “formed in 1983 in Hattiesburg, Mississippi, when the breakup of AT&T enabled thousands of competitors to start reselling long distance telephone service to individual and business customers.” The website also goes on to say that WorldCom was also considered a “full-service telecommunications powerhouse in the mid-1990s.” In 1985, a man by the name of Bernard Ebbers became the company’s CEO, after the previous owner Bill Fields, was losing twenty-five thousand dollars a month. Bernard Ebbers came in to WorldCom as the president and CEO, when the company

d) Why do you have more flexibility with LAN service than with WAN service? Why? [374]

establishing networks. In addition, this paper will cover the network architecture and the standards that must be address prior, during and finalization of a network. Before we can build any type of network, we must understand the network technology concepts and how to apply them to a network. By establishing a foundation to build upon, require checks and balances in order to have a successful network operational. There are many criterions that needs to be set forth and has to be completed in establishing any type of network.

Multicarrier modulation is a technique of transmitting data over several subchannels instead of transmitting the data over the whole bandwidth in single carrier systems. The data stream to be transmitted is divided into a number of lower data rate data streams. The subchannels have narrow bandwidth compared to wideband channel in single carrier systems and also the symbol period on each subchannel is increased.

One of the most important contributions to communication is the invention of radio communication. It has provided a platform for wireless cellular communication. According to an article, it was first believed that ‘The wireless telephone will also cover the seas, lakes and waterways, supplementing the wireless telegraph over short distances’ (Burt, 1908, para. 3). If only he knew that wireless telegraph will become a thing of the past. The first effective radio communication system was developed by Guglielmo Marconi, an Italian inventor, and scientist (Guglielmo Marconi Biography, n.d.). Marconi never had any formal scientific education (Bababian, 1992), but ‘has been the recipient of honorary doctorates of several universities’ (Guglielmo Marconi - Biographical, 2013, para. 8). He began experimenting with electromagnetic waves in 1894 when he was twenty years old. However, ‘Nikola Tesla is now credited with being the first person to patent radio technology; the Supreme Court overturned Marconi's patent in 1943 in favour of Tesla. (Bellis, n.d., para. 6) ’.

the procedure he used with this company to set this up. The main thing that I took from what he did was that there was always lots of communication between all the decision makers in the group. This is something that we did not do an excellent job of when trying to get a system set up to acquire customer feedback data. It appears every member of executive management has his or her idea of how this should be done, when it should be done, and what information was to be obtained. At no time did they all sit down and conclude an answer to these questions so the employees trying to come up with the system were having to change things each time someone reviewed it. Just having simple communication between all involved would go a long way to

In this research paper I will be exploring the new digital oilfield. This is defined by Sidney Hill of plantengineering.com as “an oilfield that harnesses information technology in ways that allow an oil company to capture and analyze data about all of its operations, ideally in real time, thus maximizing production while minimizing costs.”[1] I will cover why this technology has been brought in, what benefits it brings with it, how they are using it, and the possible threats that are holding it back.

Generally speaking, synchronization is divided into timing and frequency synchronization. In practice, the oscillator does not produce a carrier at exactly one frequency, and the carrier frequency is modulated by random phase jitter [2]. The phase noise introduced results in a mismatch of frequencies between the local oscillators at the transmitter and the receiver. In addition, Doppler effects in fading channel also causes frequency offsets at the receiving carrier. As a result, the numbers of subcarriers cycles within the FFT period are not integers anymore, and the orthogonality property between subcarriers is not kept, causing ICI for an OFDM system. In contrast, in a

Abstract—Free Space Optics (FSO) is one of the most promising new access technologies. FSO provides the transmission of data with unlimited bandwidth. The atmospheric attenuation is caused by two main factors absorption and scattering. This paper investigates a performance study of free space optics channel for variable wavelengths 850 nm, 950 nm and 1550 nm at distance range of 1 km. The simulation reports minimum BER for NRZ-OOK modulation technique at different receiver diameters in presence of fog, rain and humidity attenuation. The results shows how to improve the system to achieve minimum BER and maximize the power received that can be detect at distance 1 km.