Analysis and Comparison of 1G , 2G , 3G ,4G and 5G Telecom Services
The Journey of “G” from 1 to 5 th Generation
Until the controversial spectrum scams were brought up in the limelight many were ignorant of what 1G, 2G or 3G stood for and all of a sudden a hike was found out amongst laymen so as to be knowledgeable about it. Still a number of people are unaware of 1G or 2G when the world has moved on to 4G.
The telecommunication service in World had a great leap within a last few year. . 6 billion people own a mobile phones so we are going to analyze the various generations of cellular systems as studied in the evolution of mobile communications from 1st generation to 5th generation .Now almost all the service providers as well as the customers seek for availing these 3G and 4G services.
We can analyze that this could be due to increase in the telecoms customers day by day. In the present time, there are four generations in the mobile industry. These are respectively 1G the first generation, 2G the second generation, 3G the third generation, and then the 4G the forth generation. Ericson a Swedish company is launching this high tech featured mobile into the market. It is being first introduced in the Swedish Capital city, Stockholm.
Present Status of Telecommunication Services in Asian Countries
Now we are in the midst of 4G. In China, the 3G service came into existence only by last February. Therefore, that it may take time for exposing to other states. But we should also realize many other countries such as the Asian countries were using these services since last decade. Due to these reasons, we can hope that the 4G may enter within a few years. The 3G (Third Generation) had also reached India recently. There is no doubt that within a few years India will be the first in telecom users also.
What's 4G Mobile Technology by Prof. Willie Lu,
HubPoll: 5G Wireless Systems
What are 5G Wireless Systems?
What is 2G ?
Second Generation (2G) wireless cellular mobile services was a step ahead of First Generation( 1G) services by providing the facility of short message service(SMS) unlike 1G that had its prime focus on verbal communication. A typical 2G G.S.M network service ranges from 800/900MHz or 1800/1900 spectrum. The bandwidth of 2G is 30-200 KHz.
Let us examine what these 3G & 4G have rather than that of 1G and 2G.
Analysis of 1G and 2G services
In 1G, Narrow band analogue wireless network is used, with this we can have the voice calls and can send text messages. These services are provided with circuit switching. Today’s the usual call starts from the beginning pulse to rate to the final rate. Then in case of 2G Narrow Band Wireless Digital Network is used. It brings more clarity to the conversation and both these circuit-switching model.
Both the 1G and 2G deals with voice calls and has to utilize the maximum bandwidth as well as a limited till sending messages i.e. SMS. The latest technologies such as GPRS, is not available in these generations. But the greatest disadvantage as concerned to 1G is that with this we could contact with in the premises of that particular nation, whereas in case of 2G the roaming facility a semi-global facility is available.
In between 2G and 3G there is another generation called 2.5G. Firstly, this mid generation was introduced mainly for involving latest bandwidth technology with addition to the existing 2G generation. To be frank but this had not brought out any new evolution and so had not clicked to as much to that extend.
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What is 3G Generation
But to overcome the limitations of 2G and 2.5G the 3G had been introduced. In this 3G Wide Brand Wireless Network is used with which the clarity increases and gives the perfection as like that of a real conversation. The data are sent through the technology called Packet Switching .Voice calls are interpreted through Circuit Switching. It is a highly sophisticated form of communication that has come up in the last decade.
In addition to verbal communication it includes data services, access to television/video, categorizing it into triple play service. 3G operates at a range of 2100MHz and has a bandwidth of 15-20MHz. High speed internet service, video chatting are the assets of 3G.
How is 2G different from 3G?
- In comparison to 2G customers will have to pay a relatively high license fee for 3G.
- The network construction and maintenance for 3G is much expensive than 2G.
- From the point of view of customers, expenditure will be excessively high if they make access to various facets of 3G.
What is Packet Switching
This is actually done by supplying various addressed packets, which will be interconnected to have the conversation. It is not necessary to create a new dedicated path for sending the data. It had been modified in such a way that the data can be send through any path; hence, this data will be received at a less time as compared to that of voice calls.
Packet Switching in Computer networks
The data packs are also used in computer that is when we connected with internet this data pack helps to download the web pages that is being displayed in the monitor. For a Data Pack it does not need any separate path for downloading or displaying any objects in the computer or any other equipment. This is due to the reason that by networking, separate paths are being created and after analyzing each, the data are being transferred to the correct access point.
Main 3G Services
With the help of 3G, we can access many new services too. One such service is the GLOBAL ROAMING. Another thing to be noted in case of 3G is that Wide Band Voice Channel that is by this the world has been contracted to a little village because a person can contact with other person located in any part of the world and can even send messages too. Then the point to be noted is that 3G gives clarity of voice as well can talk with out any disturbance. Not only these but also have entertainments such as Fast Communication, Internet, Mobile T.V, Video Conferencing, Video Calls, Multi Media Messaging Service (MMS), 3D gaming, Multi-Gaming etc are also available with 3G phones.
What is the reason for delay in implementing 3G and 4G Mobile services?
It is very sad to say that the 3G services had only reached with in some towns of china, so that it may take time to reach to Other countries. Another major defect of this is that Wide Band Frequency Spectrum, which is needed for 3G, is lacking. Another reason for this is that it a cost bearing item especially for sending data. So for us it is a higher one which could be used only by upper classes. If it should be accepted among all customers, firstly it should be availed at a lower rate, for which the rate of spectrum should be declined.
4g Services In India
A new revolution in the mobile market of India has begun by Bharathi Airtel, one of the leading mobile companies in the country, which has started their services for the fourth generation mobiles in Kolkata. The internet speed of 4G mobile service is 100MBPS (21 MB per second), when compared to the low speed of 21MBPS in 3G mobiles. Other mobile companies are also planning to make 4G services available. The companies namely Reliance infotel and Qualcomm have got licence to make the 4G service available in Kerala.
Main 4G Features
When It is still to estimate as to how many number of people have moved on from 2G to 3G , technology has come up with the latest of its type namely 4G.A successor of 2G and 3G, 4G promises a downloading speed of 100Mbps and is yet to shower its wonders on. then with the case of Fourth Generation that is 4G in addition to that of the services of 3G some additional features such as Multi-Media Newspapers, also to watch T.V programs with the clarity as to that of an ordinary T.V. In addition, we can send Data much faster that that of the previous generations.
Companies that make available 4G services in India
It is the Reliance industry that has got 4G licence in the 22 circles of the country. It was possible due to its adoption of the company Infotel. Airtel has got licence in four circles, which include Kolkata. Other companies: BSNL (20 circles), Aircel(8 circles), Tikona( 5 circles), Qualcomm( 4 circles), MTNL( 2 circles), Auger( 1 circle). Even though Qualcomm has got licence, it hasn’t got spectrum yet.
Distinguishing features of 4G
The convenience of a faster internet browsing is the main benefit of 4G when compared to 3G mobiles. In 4G mobiles, videos and other things can be downloaded at a speed that is four times that of 3G.But at present speaking facility is not made available in 4G. That means to provide call facilities for companies providing 4G, they need 2G licence.
When 3G services were presented, it was widely believed that it would bring about a revolutionary change in the communicative field. But later widening their services throughout the country became deliberately slow. The failure of companies to transform the 2G service users to 3G was the main reason for it. The obstruction for widening 3G throughout the country was another reason for the failure of third generation mobiles. The companies didn’t show much interest to decide a substantial amount for 3G services. But the judgement of those in the telecom field is that, these all are just some mistakes in the beginning and it will be transformed gradually.
The technique used in 4G
Most of the tablet-mobile producing companies are looking forward for the technique that the companies would use to provide 4G services. Airtel is going to use the TDLTE (Time Division- Long Term Evolution) technique. Airtel claims that this technique would offer 100 MBPS internet speed in mobiles. This can be used also in 2G and 3G services. But to provide this facility Bharathi Airtel has also got to come across many difficulties. When this service was experimented in Kolkata, it was found by the telecom department that there was a delay of 4-5 minutes. The telecom department has also asked Airtel to find a solution for it that would save more time.