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Department of Computer Science and Engineering

Vision of the Department

  To Make the Department of Computer Science and Engineering the unique of its kind in the field of Research and Development activities in this part of world.


Mission of the Department

  To impart highly innovative and technical knowledge to the urban and unreachable rural student folks in Computer Science and Engineering through "Total Quality Education".


SERVER 5 NODE 3
OCTOBER 2K18


ADVISORY BOARD

Dr. M.Indra Devi, HOD/CSE
Mr. L.Prabahar, Assistant Professor/CSE




MEMBERS

S.Dinesh Kumar, II Year/CSE
K.Satish kumar, II Year/CSE

TECH DIARY
1. BDMA
2. 5 G Mobile Technology




CONTENTS

1.CSE Events
2.2018 Department Events
3.Stars of CSE :
     3.1 Placed Students
     3.2 Unit Test Toppers

                         BDMA(Beam Division Multiple Access)

    There are various multiple access techniques developed for multiple users to exploit efficient usage of common resources such as time, frequency, codes etc. This has motivated the development of Frequency Division Multiple Access (FDMA), Time division Multiple Access (TDMA), Code Division Multiple Access (CDMA) and Orthogonal Frequency Division Multiplexing (OFDM) techniques. The main aim here is to provide quality service to the subscribers/users at affordable cost. As we see that the number of mobile users is swelling day by day and is expected to grow ten times by the year 2020. So there is an urge to increase the capacity to reap this boom. The Korean R & D has devised new access technique known as BDMA for fifth generation of mobile wireless communication systems. This scheme is proposed to increase wireless communication system capacity and handle a large number of users in 5G systems. BDMA is a radio interface which is independent of frequency and time resources. this technique not only solves the problem of bandwidth capacity and efficiency but also eliinates signal deterioration at the cell edge. The picture shows the working of BDMA technique. Here the base station allocates separate antenna beam to each mobile users. All mobile stations which in the Line-Of-Sight(LOS) communicate with the base station. all the beams are distinct for each individual stations. so simultaneous data transmission is possible to different mobile stations at different angles. To support more number of users, beam is 3-dimensionally divided. This technology is still under research and may find its way in 5G when it is launched in fullfledge.






                                                                                                                     Mr L. PRABAHAR
                                                                                                                   AP/CSE

5 G Mobile Technology

5G is the fifth generation of cellular Mobile Communications. Its predecessors are 4G (Long Term Evolution LTE / WiMax), 3G (Universal Mobile Telecommunication Service UMTS) and 2G (Global systm of Mobile Communication GSM). 5G's specifications are expected to get released in March 2019 so that industries can adopt to it.

History of Wireless Mobile Communication

1G refers to the first generation of wireless telephone technology, mobile telecommunications, which was first introduced in 1980s and completed in early 1990s.
            • It's Speed was up to 2.4kbps.
            • It allows the voice calls in 1 country.
            • 1G network use Analog Signal.
            • AMPS was first launched in USA in 1G mobile systems.

•  2G technology refers to the second generation which is based on GSM. It was launched in Finland in the year 1991. It used digital signals. It’s data speed was up to 64kbps. It enables services such as textmessages, picture messages and MMS (multi media message). It provides better quality and capacity .


•  3G technology refer to third generation which was introduced in year 2000s. Data Transmission speed increased from 64kbps to 2Mbps. These phones are typically called as Smart Phones and features increased its bandwidth and data transfer rates to accommodate web-based applications and audio and video files.



•  4G was started from late 2000s. Capable of providing 100Mbps – 1Gbps speed. It is the next generations of wireless technology that promises higher data rates and expanded multimedia services. The features include More Security , High Speed, High Capacity and Low Cost Per-bit etc.


5G i.e. fifth Generation was started from late 2010s. It aims to be complete wireless communication with almost no limitations. It is highly supportable to WWWW (Wireless World Wide Web). Development of 5G is being led by companies such as Huawei, Intel and Qualcomm for modem technology and Lenovo, Nokia, Ericsson, ZTE, Cisco and Samsung for Infrastructure. AT&T is part of this program by developing hybrid printed circuit board structures for high frequency optimized interconnect solutions. Worldwide commercial launch is expected in 2020. Numerous operators have demonstrated 5G as well, including Korea Telecom during the 2018 winter Olympics and Telstra at the 2018 Commonwealth Games. In US, AT&T demonstrated the millimeter wave commercial deployments in 2018, Verizons 5G fixed wireless launches in four U.S. cities and millimeter-wave deployments, Sprint's launch in the 2.5 GHz band, and T-Mobiles 600 MHz 5G launch in 30 cities. Vodafone performed the first UK trials in April 2018 using mid-band spectrum, and China Telecom's initial 5G buildout in 2018 will use mid-band spectrum as well. Beyond mobile operator networks, 5G is also expected to be widely utilized for private networks with applications in industrial IoT, enterprise networking, and critical communications. The Features of 5G Technology includes :
• Greater speed(enough to download a movie in few seconds)
• Greater capacity(1,000 times capacity of 4G)
• Reduced Latency(stop delays)
• Provide high resolution and larger bandwidth
• It will gather networks on one platform
• Lower battery consumption
• Simultaneous connections can work together

• Provide uninterrupted and consistent connectivity.
• Allow access to parallel multiple services
• Remote place access grant







                                                                                                         Mr. L.Prabahar
                                                                                                         AP/CSE

2018 Department Events

STARS OF CSE

Unit Test Toppers