Search for dissertations about: "Sector Antennas"
Showing result 1 - 5 of 6 swedish dissertations containing the words Sector Antennas.
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1. Robust Vehicular Communications for Traffic Safety---Channel Estimation and Multiantenna Schemes
Abstract : Vehicular communications, where vehicles exchange information with other vehicles or entities in the road traffic environment, is expected to be a part of the future transportation system and promises to support a plethora of applications for traffic safety and efficiency. In particular, vehicle-to-vehicle (V2V) communication promises to support numerous traffic safety applications by enabling a vehicle to broadcast its current status to all the other vehicles in its surrounding. READ MORE
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2. Advanced Antennas in Wireless Communications : co-located & distributed
Abstract : In a wireless radio network system, with an evolving standard, there is a need to increase system capacity due to the increase in the traffic demands, the higher data rate usage, and the need to further extend the coverage of the system. One possible solution is to use multiple antennas (co-located or distributed) for the radio links. READ MORE
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3. Design and Evaluation of Compact Multi-antennas for Efficient MIMO Communications
Abstract : The use of multi-antenna systems with multiple-input multiple-output (MIMO) technology will play a key role in providing high spectrum efficiency for next generation mobile communication systems. This thesis offers valuable insights on the design of compact multi-antennas for efficient MIMO communications. READ MORE
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4. Radio resource management for wireless indoor communication systems : performance and implementation aspects
Abstract : In this thesis, we investigate several radio resourcemanagement (RRM) techniques and concepts in an indoorenvironment with a dense infrastructure. Future wireless indoorcommunication networks will very likely be implemented atplaces where the user concentration is very high. At these hotspots, the radio resources must be used efficiently. READ MORE
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5. Mobile cellular communications with base station antenna arrays
Abstract : This thesis deals with the problem of increasing thespectrum efflciency of cellular systems by the use of antennaarray base stations. The focus of the thesis is on downlinktransmission in frequency division duplex systems. i.e. READ MORE