Approved
Performance evaluation and modeling of a beam-simulation system for MIMO communications
Linfeng Chen ()
Start
2022-04-13
Presentation
2022-11-18 09:15
Location:
E:2517
Finished:
2023-02-14
Master's thesis:
Abstract
For many years, communication systems that use beamforming technology to improve system performance in radio networks are evolving. Beamforming enables a mobile communication system to utilize the bandwidth efficiently and gain better coverage. Smart antenna-based beamforming technology can expand existing communication capacity by reducing interference and improving the Signal to Interference plus Noise Ratio (SINR). Advanced Antenna System (AAS) is a great example of smart antenna system that combines the antenna array and many multi-antenna features (such as beamforming) that can be implemented on the radio unit. With the development of AAS, the requirement for its accuracy becomes stricter. The performance of AAS should be tested before being put into use, such as beamforming performance. Therefore, an efficient test system can effectively help the design of smart antennas. In this work, a beam simulation system based on the Butler matrix structure used for beamforming testing was evaluated and verified. The assessment is carried out in two parts. The first part is the theoretical analysis and simulation of the expected measurement result. The second part is to measure the device by using a test system and compare the results with the theoretical result. The target of this thesis is to evaluate the accuracy of this beam simulation system and make a proposal for improving MIMO feature verification.
Supervisor: Jens Grekula (Ericsson) and Peter Kornevi (Ericsson) and Xuesong Cai (EIT)
Examiner: Michael Lentmaier (EIT)