EFFECTED ANGULAR SPREAD ON BEAMFORMING AND TRANSMIT DIVERSITY FOR INDOOR AND OUTDOOR
Journal Title: Вісник Національного університету "Львівська політехніка", серія "Радіоелектроніка та телекомунікації" - Year 2014, Vol 796, Issue 2014
Abstract
The implementation of beamforming and spatial diversity in Orthogonal Frequency Division Multiplexing (OFDM) systems reveals challenges in terms of complexity, feedback, and scenario dependencies. In this paper we discuss the differences and limitations of OFDM transmission over scenarios with different angular spread, which can viewed clearly from the base station antenna (BSA), signals departing to or arriving from the UE appear to be spread over a range of angle and evaluate the issues arising from the implementation of beam-forming and spatial diversity in OFDM systems.
Authors and Affiliations
Mushtaq Al-Shuraifi, Haider Al-Zayadi, Ihor Orlevych
Keywords
Related Articles
- EP ID EP459706
- DOI -
- Views 106
- Downloads 0
DEVELOPING OF MOBILE ROBOTIC TECHNICAL SYSTEM BASED ON FPGA
In the article the structure of the designed FPGA based mobile robot technical system is described. For the design the block-hierarchical approach was used. This system includes the following elements: - the MicroBlaze s...
MOBILE INFORMATION TECHNOLOGIES OF NAVIGATION OF A USER IN COMPLEX INDOOR ENVIRONMENT
The article depicts the indoors positioning technology and user mobile positioning devices. It describes the possibilities of computer technology of indoors positioning of the device when navigating the user through the...
INTELLECTUAL VERTICAL HANDOVER ALGORITHM IN HETEROGENEOUS MOBILE NETWORK BASED ON CLOUD TECHNOLOGY
In this work has been increased quality of service in mobile systems based on efficient network and radio utilization of resources of heterogeneous network and optimal procedure of intellectual vertical handover based on...
ANALOGUE PLL AS CIRCUIT BASIS OF FM RADIO RECEIVERS
Demodulators of broadband frequency modulated (FM) signals are characterized by noise immunity threshold – the phenomenon of rapid deterioration of signal-to-noise ratio on its output with the slight deterioration of thi...
JOINT DISCOVERY AND ESTIMATION OF INTENSITY OF UNSTATIONARY STREAM OF CALLS
The problem of joint detection and rating intensity of а stream applications in telecommunication system is examined. A mathematical model, which includes a flow model, procedure of estimation of parameters and threshold...