4G: The Fourth Generation: The fourth generation of mobile telecommunication technology is 4G the short form of Fourth generation, succeeding 3G. It allows users to connect anytime, anywhere, anyhow.
HISTORY:
The first generation of mobile communications started with the Advanced Mobile Phone Systems (AMPS), which was an analogue system regarded as 1G. Then came GSM and CDMA-one (pretty much regarded as 2G) and then to UMTS and EV-DO, which are 3G technologies. The latest technologies for 4G are LTE (from the 3GPP group) and 802.16m (from the IEEE). In the case of 802.16m, the candidate for 4G is also known as Wireless MAN Advanced, or WiMAX2. LTE progresses through versions known as releases. The latest release that qualifies as being 4G is
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ADVANTAGES OF 4G MOBILE NETWORKS:
• The most obvious advantage of the 4G mobile network is its amazing speed. Increased bandwidth leads to much faster data transfer speed, which is especially advantageous for mobile devices. Users of the 4G network get the advantage of superior, uninterrupted connectivity, especially for advanced tasks such as video chats and conferences. The younger generation of mobile device users can stream music, videos and movies at a much faster rate and can also easily share information online.
• 4G networks offer much more coverage than other systems such as Wi-Fi, which forces users to depend upon hotspots in each area you visit. Since 4G offers a coverage of 30 miles and more, users would be assured of complete connectivity at all times.
• One of the biggest problems with Wi-Fi networks is that of online security which is especially true for mobile devices. 4G networks offer complete privacy, security and safety. It is very beneficial for corporate establishments and business persons, who hold sensitive information on their respective mobile
Insufficient bandwidth: Mobile Internet access is generally slower than direct cable connections, using technologies such as GPRS and EDGE, and more recently HSDPA and 3G networks. These networks are usually available within range of commercial cell phone towers. Higher speed LANs are inexpensive but have very limited range.
Ans. The 3G UMTS systems have two logical entities – the Node-B (the radio base station) and the Radio Network Controller (RNC) while the 4G LTE systems have only one logical node – the evolved Node-B (eNode-B).
Less than a decade ago, the telecom operators in the U.S., Western Europe, and Japan were upgrading their existing networks to high-speed 3G technologies. Now the world telecommunications industry is about the switching to the next-generation super-fast 4G technologies.
In the recent years, wireless technologies have taken a new dimension in the ways society lives. Wireless broadband is available to everyone. Whether the users are at home, driving the car, sitting in the park, and it would even work while people are a pleasure boat ride in the middle of a lake. And because of this, the need to have information at any time and be connected in all places, all the time has been satisfied.
5G is the fifth generation wireless broadband technology based on the IEEE 802.11ac standard. 5G is provide high speed then 3G and 4G. 5G operates on 5GHZ signal and set is to offer speed up to 1 GB/s.
4G networks offer 10 or more times the data transmission rate of a 3G network. The data rates available on a 4G network allow the cell phone to access information from the Internet as fast as a land-line connection.
Mobile and fixed networks are now both extremely developed in today’s modern world. It is now completely possible to get blazing fast internet with wither a fixed line provider, or a mobile provider. The services provide more than internet though, also frequently providing phone and/or television services. These networks are far from perfect though.
One of the most heavily advertised areas of technology in the United States currently is 4G technology. Every commercial and advertisement promises fast speeds, great coverage, and exceptional service altogether. However, the competition proves to be extreme and unbalanced. Since its introduction on Sprint’s network, 4G, or fourth generation cellular technology, has revolutionized both the telecommunication arena while spilling into other technological fields. There is no end in sight for the relentless competition of expanding 4G technologies as coverage and network speeds continue to increase. Currently, 4G technology is offered by all major telecommunication carriers in the United States: Verizon, AT&T, T-Mobile, and Sprint. However, the term “4G” has been loosely used. The best example of this can be associated with Sprint.
As technology evolves, scientists and entrepreneur create designs to distinguish the old from the new. In the world of mobile phones, the earliest cellular systems and phones were called 1G, meaning “first generation.” The next generation wasn’t too much of an improvement in the long run, but it was a new tool back when 1G was the new thing, now a new thing now today it’s called second generation, or 2G, to distinguish them from the earlier analog (1G) phones. While 2G phones were able to receive both digital and analog signals, earlier 1G phones were restricted to the analog networks. The increasing demands placed on mobile telephones to handle even more data than 3G could lead to the development of 4G technology. In 2008 the ITU set forward a list of requirements for what it called IMT-Advanced, or 4G. These requirements included data rates of 1 gigabit per second for a stationary user and 100 megabits per second for a moving user. This is where our generation are today while major corporation are working on the new generation, fifth generation, at least that is what the public assumes what it will be called. Its rumored to be able to include data rates of 1 gigabit per second while moving and 10 Gigabits when stationary.
Telstra than discovered 3G and 4G Internet now they both do the same thing, which is for you to connect to the Internet but 4g, was created to make Internet streaming faster.
Cellular Broadband is used to access Internet on mobile devices, such as mobile phones, tablets and mobile dongles. There are currently three different technologies used to access the Internet from a mobile device, these include 2G, 3G and the current 4G. Cellular broadband is a subscription-based service, which usually comes as part of your mobile tariff from your provider. However, you can get separate tariffs just for cellular broadband, these are used in laptops and tablets to provide Internet access on the move. ITU Telecom World research indicates that 90% of the world is covered by a 2G signal; where as 45% of the world has a 3G signal (www.itu.int). This shows that there is a high demand for this service, and it is a very popular option to access Internet while bring mobile. This type of service is something that could be incorporated within our health authority network, for example a 4G connection can be used as a backup internet backbone as well as employees using the service to access
WiFi and 3/4G allow unlimited Internet and connectivity to find information. Allows quick and easy switch between Documents and Applications
We all know Wi-Fi networks have broadcast system so there are different security issues in the wireless connection. Hackers can steel every kind of personal data or documents via broadband wired networks or wireless communication. In this paper we will discuss the various remote security dangers to wireless systems at present accessible like Wired Equivalent Privacy. Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access 2 (WPA2). WPA2 is more hearty security systems as compared with WPA on the grounds that it defined as Advanced Encryption Standard. There are few issues in WPA2 like it is helpless against password protected data and utilized the programmer whose compare it with the decoded content. So in this paper we will concentrate
According to Weldon (2014), it also provides 4G coverage using different technologies and when connected with the company’s enhanced backhaul, the carrier has the ability to enhance its network capabilities and provide superior mobile broadband speeds for data and video services. Further, AT&T’s wireless network also works with other GSM digital transmission technologies for 3G and 2G data communications (AT&T Inc. Annual Report, 2014). The communication’s service provider continues to expand on the number of locations including airports and restaurants where customers can access broadband Internet connections using wireless fidelity or the radio frequency that is referred to as Wi-Fi
Multiple Access: Both LTE and wimax uses MIMO (Multiple Input Multiple Output), which a Space Division Multiple Access technique. It is a smart technique in which the same signal is transmitted in different streams to the receiver. The receiver choses the best of the transmitted signal streams and decodes the signal. It is chosen such a way that, the best quality signal is obtained. So, even the weaker signals are boosted up by this technique.