Essays about: "gsm technology"

Showing result 21 - 25 of 148 essays containing the words gsm technology.

  1. 21. Software Defined Radio based MIMO channel sounding

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Jens Elofsson; Peter Seimar; [2016]
    Keywords : channel sounding; MIMO; Zadoff Chu; M-sequences; USRP; FPGA; Technology and Engineering;

    Abstract : With todays increased use of smartphones and other wireless devices, the demands on the wireless networks have increased dramatically. This has prompted the re- search and development of new types of wireless systems using multiple antennas at both the transmitter and the receiver, known as MIMO. READ MORE

  3. 22. Lower bounds on the Q-factor for small oversampled superdirective arrays over a ground plane

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Masahiro Wakasa; [2016]
    Keywords : ;

    Abstract : Base station antennas for next generation mobile communication networks will be required to have a wide bandwidth for compatibility and support multi-beam applications. Antenna arrays are one possible candidate for a next generation base station antenna since they can obtain high directivity, support multi-beam and wide angle scanning. READ MORE

  4. 23. MOBILE CREDIT USING GSM NETWORK : TOPUP FOR MOBILE PHONES

    University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

    Author : Saketha Ram Mekala; [2015]
    Keywords : ;

    Abstract : .... READ MORE

  5. 24. DESIGN AND IMPLEMENTATION OF RICH COMMUNICATION SERVICE SCENARIO REPLAYER AND PERFORMANCE EVALUATION OF APPLICATION SERVICE

    University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

    Author : Amulya Yellakonda; [2015]
    Keywords : RCS; IMS; Replay; Performance;

    Abstract : Rich Communication Services(RCS) program is a GSM Association (GSMA) initiative to create inter-operator communication services based on IP Multimedia Subsystem (IMS) . This initiative came up as the Global Telecom Operators ́response to the decline in their revenues and to help compete ’Over The Top’(OTT) service providers such as Viber, whatsapp, etc. READ MORE

  6. 25. Pattern Reconfigurable MIMO Antennas for Multiband LTE Operation

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Rui Ma; Ioannis Chountalas; [2015]
    Keywords : Technology and Engineering;

    Abstract : Nowadays, multiple antennas are becoming widely used in small mobile terminals as they can significantly improve wireless communication performance in terms of link reliability and spectral efficiency. Also, pattern reconfiguration is another new trend for antenna design as it enables the antennas to adapt to different propagation and user scenarios. READ MORE