4G Technology – An Analysis

4G Technology An Analysis 4G refers to the Fourth Generation of cellular wireless standards in telecommunications that will succeed it predecessors 3G 2G. It is a high-speed broadband wireless network that offered comprehensive & secure all IP based services. According to the ITU, requirements for 4G standards were specified by IMT-Advanced (International Mobile Telecommunication-Advanced). The data rates of 4G service for high mobility communication was set to 100 Mbps and low mobility communication was set to 1 Gbps. It focuses on cellular system with extremely high data rates & the concept of seamless technology in all wireless systems. Carriers that are using OFDM (Orthogonal Frequency-Division Multiplexing) as an alternative to TDMA and CDMA are promoting their services as 4G even though their data rates are not high according to the ITU. 4G outdoor users that have Internet access through cell phones or smart phones were promised to have a targeted data speed of around 100 Mbps by the IMT-Advanced and t he data speed for indoor users such as LAN (Local Area Network) was suppose to be around 1Gbps. This type of higher speed for both fixed and mobile Internet users is truly amazing. 4G proposes scalable channel bandwidth flexibility of up to 40 MHz. The network resources are dynamically utilized & shared to sustain more simultaneous users over each call. 4G also has the ability to propose high QoS (Quality of Service) for multimedia support and offer smooth handover heterogeneous networks. It must also have the ability to offer wireless LAN roaming & interact with systems used for video broadcasting. Figure 5: Seamless Connection of Networks in 4G [5]. The 4G architecture comprises of 3 crucial areas of connectivity namely PAN (Personal Area Network) WAN (Wide Area Network Cellular Connectivity Each device will have the ability to interact with the Internet based information that is modified over the network used by the device at that time. This structure can support a wide r ange of 4G mobile devices that sustain global roaming. In 4G networks users that join the network have the ability to add mobile routers to the infrastructure. Changing user patterns can be accommodated by dynamically shifting network capacity & coverage. Creating additional routes as the concentration of people is higher in one area compared to the other enables additional access to the capacity of the network. Users can easily avoid congested routes by hoping to the less congested routes. This allows the network to automatically balance the capacity by increasing the network utilization. The service for all the users improve with the increase in number of users. Need for 4G One of the questions that come to mind when thinking about future 4G systems is there need. The first application to be mobilized was voice telephony, few years ago. The short message service (SMS) was the first application to be introduced as a mass-market application. The hardware complexity was not an issue at the given time along with the advantage of small bandwidth requirements. The SMS was just the commencement of various data services like mobile email, web browsing etc. The key feature in most of them was the packet based wireless networks carrying IP data in one hand and powerful terminals that could cope with these applications on the other. Although the network capacity is still not an issue due to less number of users, there are number of reasons for increased bandwidth requirements in the future. First, the number of wireless users increases exponentially resulting into an increase in bandwidth requirement. Second, the popularity of video and music downloads has increased immensely within few years. The information content in a video or music is more than the corresponding text but so is the capacity requirement. Last but not the least, mobile social networks have taken the current internet usage to a much higher level. Picture viewing sites, web blogs and also video sharing sites have reshaped the internet.

Summary & Critical Response Assignment Example | Topics and Well Written Essays - 750 words

Summary & Critical Response - Assignment Example The last argument of the author is that money students get for their work is spent carelessly. There are some students who save money for their college education. There are also some hard-working teenagers who need to work to help their families to make both ends meet. The majority of students, however, spend their earnings on fashionable clothing and entertainments. Overall, Etzioni comes to the conclusion that money quest should not be the most important thing in students’ life; they need to pay more attention to their education to find appropriate jobs in their later lives. Etzioni uses a lot of logical arguments to support his point of view, but it is not reasonable to claim that part-time jobs have no use for students at all. Together with all negative outcomes listed by Etzioni, they bring many relevant skills not only for future employment, but for life in general. Etzioni addresses this article to parents, while he forgets to mention many benefits students get when they work part-time. First of all, any work teaches students to organize their time in order to do everything they need during the day. Any work requires knowledge of time management to structure the day properly. Students who have to combine work and per-time jobs are often more organized and effective in their future lives. The second benefit of part-time jobs is the experience of socialization in totally different environment. Students are school have totally different interests and aim in their lives. People at work often have many things in common. Communicating with people at work can bring new ideas and insights to students. Moreover, they can switch the activity from intellectual to physical, which is also good to add some diversity to their lives. It is difficult not to agree with Etzioni that work at fast food chains is not a decent work. However, every work experience is life experience. Students who never work during their high school face

Stakeholder mapping Stakeholder analysis Essay Example | Topics and Well Written Essays - 2500 words

Stakeholder mapping Stakeholder analysis - Essay Example The stakeholders can very well be found beyond the formal structure of the company. Therefore in order to find out all the stakeholders, the company is also required to have a look at informal and indirect relationships as well. The company management has to make a balancing assessment and evaluate all such external forces in order to take them along with company’s objectives. Two major elements for stakeholder management are Stakeholder mapping and Stakeholder analysis. By managing the interest of stakeholders an organisation can enhance the wealth in such a manner that economic benefits can be generated by positive relationships between the organisation and its stakeholders (Preston and Donaldson, 1999). This necessitates that the service values as perceived by stakeholders are determined in an objective manner. This includes determination of elements like information and knowledge sharing about the functioning of the company, joint ventures, acquisitions and mergers, comple mentary resources and capabilities. In fact, at times, the operational direction of the company is set by the manner in which the stakeholders perceive the company, its missions and objectives. Key stakeholders like shareholders, employees, financers etc. often make use of influencing strategies to guide the organisation or to set the priorities for the company (Frooman, 1999). Therefore while taking crucial corporate decisions, it is necessary to know about the expectations of different stakeholders and to determine the extent to which they could and would exert their influence. Mitchell et al (1997) contend that an influential model of how stakeholders influence organisations is based on attributes of power, legitimacy and urgency. Johnson & Scholes (1999) define stakeholder as, â€Å"Stakeholders are groups or individuals who have a stake in, or expectation of, the organization’s performance.† Besides the owners