Sökning: "smart antennas"

Visar resultat 11 - 15 av 29 uppsatser innehållade orden smart antennas.

  1. 11. Millimetre-Wave Spectrum Sharing in Future Mobile Networks : Techno-Economic Analysis

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

    Författare :Ehab Elshaer; [2016]
    Nyckelord :;

    Sammanfattning : Mobile operators passed through many phases in the market over the last several years, since the beginning of mobile broadband services. When the first smart phone was introduced in 2007, it caused a huge increase in the traffic and the users demand kept on increasing. LÄS MER

  3. 12. Adaptive Beamforming for Next Generation Cellular System

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

    Författare :Sebastian Andersson; William Tidelund; [2016]
    Nyckelord :Adaptive; Beamforming; Precoding; 5G; Zero Forcing; MRT; Maximum Ratio Transmission; LTE; Wireless Communication; Technology and Engineering;

    Sammanfattning : In this work aMatlab model of a simplified LTE system has been implemented. The PUSCH and PDSCH signal chains has been used for reception and transmission of data and DM-RS symbols are used as pilots. Moreover, the model supports communication and interference between multiple users and base station antennas. LÄS MER

  4. 13. Design, Build and Test of planar antennae

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

    Författare :Constantine Ochieng Ayimba; [2016]
    Nyckelord :antennas; Laser milling; LPKF; Patch antennas; antenna; Technology and Engineering;

    Sammanfattning : Planar antennae have become very popular owing to their relative ease of manufacture and unobtrusive nature (they are conformal to surfaces) especially with regard to certain devices such as smart phones, watches and fitness gadgets. Although the fractional bandwidth of planar antennae is small, the actual bandwidth in absolute terms is high owing to the higher centre frequencies used and proves useful for these applications. LÄS MER

  5. 14. Understanding the Parasitic Effects on the Microwave Interferences at Hearing Instrument Level up to 6GHz

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

    Författare :Thomas Sofya; [2016]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The use of electronic devices which radiate high power electromagnetic waves has seen a significant increase in the last 20 years. These radiated signals heavily effects electronic devices close to strong radio frequency (RF) or microwave (MW) transmitters . LÄS MER

  7. 15. 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