Sökning: "GSM teknik"

Visar resultat 6 - 10 av 35 uppsatser innehållade orden GSM teknik.

  1. 6. Traffic analysis of existing traffic in Kulyab region in order to plan and configure a new GSM MSC for this region

    Master-uppsats, KTH/Kommunikationssystem, CoS

    Författare :Isabel Frostne; [2011]
    Nyckelord :MSC; MSC server; MGW; BHCA traffic load; connect traffic load; 2G; mobile traffic; mobile network;

    Sammanfattning : Wide area cellular mobile networks have rapidly evolved over the years. In the beginning achieving wide area coverage was a great achievement – enabling subscribers to call from wherever they were currently located and whenever they wanted. LÄS MER

  2. 7. COEXISTENCE OF WLAN AND WWAN IN A NOTEBOOK

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap; Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Emmanuel Olusegun Owolabi; Vivien Ibironke Ibiyemi; [2011]
    Nyckelord :RADIO ACCESS; INTERFERENCE; COUPLING; COEXISTENCE;

    Sammanfattning : A modern notebook can be equipped with several devices of wireless network access technologies, such as Wireless Local Area Network (WLAN), Wireles Wide Area Network (WWAN), Wireless Personal Area Network (WPAN), and radio based navigation systems, such as GNSS (Global Navigation Satellite System). Future mobile devices will have different radio technologies such as Long Term Evolution (LTE), Wideband Code Division Multiple Access (WCDMA) and WLAN transceivers co-existing on the same module that enables such a device to connect to the different radio technologies. LÄS MER

  3. 8. Integration of MIMO antenna with a fully 180o differential hybrid coupler

    Master-uppsats, Linköpings universitet/Linköpings universitet/Institutionen för teknik och naturvetenskapTekniska högskolan

    Författare :Raj kumar Kallem; Sampath kumar Veerabomma; [2011]
    Nyckelord :;

    Sammanfattning : This thesis work proposes the integration of MIMO antenna (i.e., two bowtie dipole antennas) with a fully differential 180o hybrid coupler in the frequency range of 0.7-3 GHz which falls in the Ultra High Frequency (UHF) band as per the spectrum allocated by International Telecommunication Union (ITU). LÄS MER

  4. 9. Optimization of Remote ServiceSolution for large installations : Wireless LAN and WAN for ABB Robotics

    Kandidat-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Håkan Stenbom; [2011]
    Nyckelord :ABB Robotics; EDGE; EGPRS; industrial Ethernet; HSDPA; HSPA; HSUPA; Wi- Fi; wireless data transfer; WAN; LAN; WWAN; WLAN; GSM; Remote Service; 3G;

    Sammanfattning : This report describes a thesis work carried out at ABB Robotics in Västerås. The objective of this thesis is to find technologies  and equipments  for wireless data transfer  suitable for the present and future needs of ABB Robotics Remote Service for large installations in industrial environments. LÄS MER

  5. 10. MULTIPLE ANTENNA TECHNIQUES IN WiMAX

    Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap; Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Författare :Waseem Hussain Sandhu; Muhammad Awais; [2010]
    Nyckelord :MIMO; Diversity; Multiple Antenna Techniques; WiMax;

    Sammanfattning : Now-a-days wireless networks such as cellular communication have deeply affected human lives and became an essential part of it. The demand to buy high capacity and better performance devices and cellular services has been rapidly increased. LÄS MER

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