Search for dissertations about: "shadow fading"

Found 5 swedish dissertations containing the words shadow fading.

  2. 1. Verification of wireless communication performance and robustness for automotive applications

    Author : Mikael Nilsson; Kommunikationsteknologi; []
    Keywords : Vehicle-to-Vehicle; V2V; channel modeling; path loss; two-ray; obstruction; large scale fading; shadow fading; multiple links; diversity; correlation; over-the-air; OTA; multi-probe; multipath propagation simulator; fading emulation;

    Abstract : Today's test methods used for verifying the performance and robustness of automotive applications using wireless communication are often based on fieldtrails, which are time consuming, costly, and not repeatable. Therefore, there is an urgent need for new verification methods that can be performed in lab environment, where the realistic radio propagation environment can be emulated. READ MORE

  4. 2. Analysis of Radio Channel Measurements Using Multiple Base Stations

    Author : Niklas Jaldén; Björn Ottersten; Bo Göransson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Channel Modellin; Telecommunication; Telekommunikation;

    Abstract : Future wireless communication systems will utilize the spatial properties of the wireless channel to improve the spectral efficiency and thus increase capacity. This is realized by deploying multiple antennas at both the transmitter and receiver. READ MORE

  5. 3. Studies on the Viability of Cellular Multihop Networks with Fixed Relays

    Author : Bogdan Timus; Jens Zander; Halim Yanikomeroglu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

    Abstract : The use of low cost fixed wireless relays has been proposed as a way to deploy high data-rate networks at an affordable cost. During the last decade, significant academic and industrial research has been dedicated to relays. Protocol architectures for cellular-relaying networks are currently considered for standardization as part of both IEEE 802. READ MORE

  6. 4. Measurement Based Channel Characterization and Modeling for Vehicle-to-Vehicle Communications

    Author : Taimoor Abbas; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle-to-vehicle communications; IEEE 802.11p; Channel measurements; Channel modeling; propagation modeling; MIMO; intelligent transportation systems;

    Abstract : Vehicle-to-Vehicle (V2V) communication is a challenging but fast growing technology that has potential to enhance traffic safety and efficiency. It can also provide environmental benefits in terms of reduced fuel consumption. READ MORE

  7. 5. RF Wireless Power Transfer for IoT Applications

    Author : Morteza Tavana; Emil Björnson; Jens Zander; Ayça Özçelikkale; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronic waste; Energy harvesting; Internet of things; transceivers; wireless power transfer; wireless sensor networks; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : With the emergence of the Internet of things (IoT) networks, the replacement of batteries for IoT devices became challenging. In particular, the battery replacement is more expensive and cumbersome for scenarios where there are many IoT devices; or where the IoT devices are in unreachable locations; or when they have to be replaced often. READ MORE