Sökning: "3G networks"

Visar resultat 11 - 15 av 96 uppsatser innehållade orden 3G networks.

  1. 11. Analyser och mätningar av två olika nät : Mätningar av det trådlösa nätet på bussar samt jämföra med det mobila nätet

    M1-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Viktor Nensén; [2016]
    Nyckelord :Teknik;

    Sammanfattning : In this study report treated the question about the wireless network we have in current buses and compare it with the mobile network 3G/4G. This report will present speed and stability for the both network. LÄS MER

  3. 12. Data Transformation Trajectories in Embedded Systems

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Gokulnath Kasinathan; [2016]
    Nyckelord :Angle of Arrival; Hidden Markov Model; Particle Filter; Arm A15 MPcore; Parallel Programming; Real time task level scheduler; Serial and Parallel performance engineering.; Angle of Arrival; Hidden Markov Model; Particle Filter; Arm A15 MPcore; Parallel Programming; Real time task level scheduler; Serial och Parallel performance engineering.;

    Sammanfattning : Mobile phone tracking is the ascertaining of the position or location of a mobile phone when moving from one place to another place. Location Based Services Solutions include Mobile positioning system that can be used for a wide array of consumer-demand services like search, mapping, navigation, road transport traffic management and emergency-call positioning. LÄS MER

  4. 13. Software Defined Radio based MIMO channel sounding

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

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

    Sammanfattning : 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. LÄS MER

  5. 14. Implementing Linear Predictive Coding based on a statistical model for LTE fronthaul

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Ghassan Nakkoul; Mohammad Shohag Hassan Kaikobad; [2016]
    Nyckelord :Entropy; LTE fronthaul; RRH; BBU; C-RAN; Quantization; LTE downlink; Cyclic prefix; LPC; EVM; OFDM; Linear predicting coding; LTE; Technology and Engineering;

    Sammanfattning : This thesis studies the application of Linear Predictive coding (LPC) in the downlink of Long Term Evolution (LTE) fronthaul, which comprises of BBU and RRH. This can act as an additional module in the existing system. Today, the transmission of a single complex sample from the BBU to the RRH consumes 30 bits. LÄS MER

  7. 15. Energy-Efficient Mobile Communication with Cached Signal Maps

    Kandidat-uppsats, Linköpings universitet/Programvara och system

    Författare :Rasmus Holm; [2016]
    Nyckelord :3G; energy-estimation; signal maps; RSS; signal strength; energy consumption; mobile;

    Sammanfattning : Data communication over cellular networks is expensive for the mobile device in terms of energy, especially when the received signal strength (RSS) is low. The mobile device needs to amplify its transmission power to compensate for noise leading to an increased energy consumption. LÄS MER