Data Communication assignment - 4G Essay Example | Topics and Well Written Essays - 1000 words

Data Communication assignment - 4G - Essay Example It all started with 1st generation mobile communications that were focused on analogue means of communication, this was followed by 2nd generation which resulted in a total shift of medium from analogue to digital(Palanivelu & Nakkeeran 2009). Ever since the introduction of digital sources of communication there has been no looking back, and the current standings are at 3rd, 4th generation and beyond. Furtherance and change being natural phenomena, mobile communications have seen a revolution in the manner in which they are operate today. State of the art technology exists in the field of mobile communication that has made the once impossible, possible. 4G is a generic term that represents a family of number of standards that are around in use. The family encompasses all those elements that are beyond 3G, namely Wimax, L.T.E, Wimax 2.0, HSDPA, Advanced L.T.E and all other standards that fulfill the demands and specifications being presented by International Telecommunication Union (W ang, Kondi & Luthra 2009). 4G standards provide data rates nearly ten times higher 3G (Aktas & Ismail 2004) with focus on resolving the last mile issues once for all by reaching to even the most remote of areas across the globe. The most prevalent of 4G family is Wimax. It has been around for 6 to 7 years now and has made inroads into the market on commercial scale. More promise is being shown by L.T.E which is termed as the true representation of 4th generation technologies that will set the platform for coming generations in telecommunication world. The journey towards 4th generation technologies started with Wimax in early 21st century. Wimax is an acronym for World Wide Interoperability Microwave Access. It is another name for ubiquitous internet connection, be it on the go or under the roof. Work was in place for last few years and it was first introduced on commercial scale for public use in South Korea. Many more countries have joined the caravan and have implemented 4G on co mmercial scale. The recently published requirements for a true 4G system specified by I.T.U, demand more than Wimax and L.T.E initial versions offered, Wimax 2.0 and L.T.E Advanced fulfill the requirements being stated by I.T.U as the just members of 4th generation(Cox 2012). Wimax has made rapid progress in last few years and has a cluster scattered in various parts of the world already. Few of the companies that have implemented Wimax include Sprint, Etisalat, and Nexter to name a few. T-Mobile is aiming at L.T.E implementation on fully commercial scale in coming days. 802.16d vs. 802.16e: Improvements have been made in the Wimax technology periodically, the initially launched version was 802.16d which provided limited or no mobility. In order to capture large scale market and attract customers to itself, a new version 802.16e was introduced later in 2005 which provided ease of movement and had focus on mobility Features of Wimax: Wimax provides large number of features compared t o its predecessors and few of them are: OFDMA (Orthogonal Frequency Division Multiplexing Access): An interface aimed to overcome the short comings of OFDM, provides the feature of entertaining multiple users at the same time and brings about more stability and reliability in the network. The use of Fast Fourier Transform (F.F.T) by the incumbent allows increased number of bits being transformed from one source to another (spectral efficiency) .802.16d made use of OFDM while the later version (802.16e)

Financial analysis case report Study Example | Topics and Well Written Essays - 1000 words

Financial analysis report - Case Study Example Table 1 Dupont Dupont Result 2011 2010 2009 Lowe 0.11 0.09 0.12 Home Depot 0.18 0.14 0.13 John Guerard (37) emphasized the Dupont formula is a useful tool for making financial decisions. making. Based on the Dupont data above, it is highly recommended that the company should increase the number of stores selling the company’s products and services. The company should focus on selling more quality products and offering more quality services to the clients. The company should also engage in research and development to discover new products. The company should also improve the quality of the company’s current home improvement products and services. The company should sell the products at affordable prices. The company should advertise the many benefits of buying the company’s products and services. The company’s advertisement expense should represent 10 percent of the company’s total expenses shown in the balance sheet. The company must target a ten pe rcent increase in its current month’s sales. An Based on the financial statements of Lowe Company and Home Depot Company, the Dupont results strong state that the Lowe’s company the companies’ discrete operational and marketing activities significantly influence the overall return on assets for both companies. The Dupont financial statement calculation indicates that Lowe’s generated a 0.12 Dupont during 2009. ... n is .11 Based on the Home Depot calculation, the Dupont results strong state that the company the companies’ discrete operational and marketing activities significantly influence the overall return on assets for both companies. The Dupont financial statement calculation indicates that Home Depot’s generated a .13 Dupont during 2009. The 2010 Dupont computation shows the company generated an increase in the Dupont results. The 2010 Dupont financial statement calculation is .14. The 2011 Dupont computation shows the company generated an increase in the Dupont results. The 2011 Dupont financial statement calculation is .18 Change over time analysis of what's going on using additional financial and performance data. Home Depot’s setting up more stores compared to Lowe’s is the main reason for Home Depot’s taking the lone spot as the world’s no. 1 home improvement retail store. Setting more branches precipitates to more revenues. Table 2 Net Prof it Margin 2011 2010 2009 Lowe 0.04 0.04 0.05 Home Depot 0.05 0.04 0.03 Based on the financial statements of Lowe Company and Home Depot Company, the Net profit margin results strong state that the company the companies’ discrete operational and marketing activities significantly influence the corresponding net profit margin for both companies. The net profit margin indicates that Lowe’s generated a 0.05 result. The 2010 net profit margin computation shows the company generated a decrease in the net profit margin result. The 2010 net profit margin is .04. The 2011 net profit margin computation shows the company generated an increase in the net profit margin results. The 2011 Dupont financial statement calculation is .04 The Net profit margin results strong state that the company the companies’ discrete operational