search query: @instructor Tirkkonen, Olav / total: 4
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Author: | Shao, Qiwen |
Title: | Comparison of different MIMO-OFDM signal detectors for LTE |
Publication type: | Master's thesis |
Publication year: | 2014 |
Pages: | 51 s. + liitt. 5 Language: eng |
Department/School: | Sähkötekniikan korkeakoulu |
Main subject: | Radio Communications (S3019) |
Supervisor: | Tirkkonen, Olav |
Instructor: | Tirkkonen, Olav |
Electronic version URL: | http://urn.fi/URN:NBN:fi:aalto-201501161100 |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
Instructions Reading digital theses in the closed network of the Aalto University Harald Herlin Learning CentreIn the closed network of Learning Centre you can read digital and digitized theses not available in the open network. The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/ You can read theses on the Learning Centre customer computers, which are available on all floors.
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Location: | P1 Ark Aalto 2669 | Archive |
Keywords: | signal detection OFDM MIMO BER spatial correlation |
Abstract (eng): | Long Term Evolution (LTE), is a standard for radio communications of high-speed data transmission for mobile phones and data business [1]. It is based on the Global System for Mobile communications (GSM)/ Enhanced Data rate for GSM Evolution (EDGE) and Universal Mobile Telecommunications System (UMTS)/ High-Speed Packet Access (HSPA) network technologies, increasing the capacity and speed using new modulation techniques [1, 2]. Orthogonal frequency-division multiplexing (OFDM) and multiple-input multiple-output (MIMO) are the key technologies of LTE. MIMO technology can significantly increase channel capacity and spectrum efficiency without occupying any more bandwidth. Signal detection algorithms are studied in this thesis: Zero-Forcing (ZF) detector, Minimum Mean Square Error (MMSE) detector, Maximum Likelihood (ML) detector, QR decomposition with M-algorithm maximum likelihood detector (QRM-MLD) and Sphere Decoding (SD) detector. The results of the study show that the optimal signal detector is superior to other signal detectors on bit-error-rate (BER) performance. The BER performance in a correlated MIMO-OFDM scenario of the detectors are also studied. |
ED: | 2015-01-18 |
INSSI record number: 50416
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