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Author:Burzanowski, Tomasz
Title:LTE Multicodeword-MIMO: Hybrid-ARQ Perfomance Studies
Publication type:Master's thesis
Publication year:2010
Pages:[10] + 80      Language:   eng
Department/School:Elektroniikan, tietoliikenteen ja automaation tiedekunta
Main subject:Tietoliikennetekniikka   (S-72)
Supervisor:Tirkkonen, Olav
Instructor:
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201203151582
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  674   | Archive
Keywords:blanking
non-blanking
troughput
link adaption
LTE downlink simulator
LTE
MIMO
HARQ
suorituskyky
linkki adaptaatio
LTE simulaattori
Abstract (eng): Mobile communication is going through major changes since the introduction of first generation mobile phones.
Not only phones, but various handheld devices are starting to use the mobile communication network for internet browsing, multimedia or even online gaming.
There is a high need for fast mobile connection and therefore new standards and specifications need to be created to satisfy the consumer requirements.

Long Term Evolution (LTE) is the latest candidate for the next mobile communication standard led by Third Generation Partnership Project (3GPP).
LTEs main features are high throughput, low latency, simple architecture and low operating costs.

Since mobile data transmission is a non linear process, a simulator is built to model the procedure.
Simulator made for this thesis was written in MATLAB meeting the 3GPPs set standards for LTE.
Three different Multiple Input Multiple Output (MIMO) downlink HARQ scenarios were created and their performance was evaluated.
The main focus of this thesis is the performance comparison of the three downlink scenarios; however the verification of the simulator model plays also a significant role in this work.
Abstract (fin): Langattomassa tiedonsiirrossa on tällä hetkellä meneillään suuria muutoksia, sitten ensimmäisen matkapuhelinsukupolven käyttöönoton.
Uusia datapuhelimia, kuten myös kämmentietokoneita käytetään internetin selaamiseen, videoiden katselemiseen ja pelaamiseen matkapuhelinverkon kautta.
Voidaakseen tyydyttämään kuluttajien vaatimukset, tarve uusien langattoman tiedonsiirron normien luomiseen on merkittävä.

Long Term Evolution (LTE) on, Third Generation Partership Project:in (3GPP) johtama, ehdokas seuraavaksi matkapuhelinsukupolven standardiksi.
LTE:n ominaisuuksiin kuuluvat mm. korkea suoritusteho, matala latenssi, yksinkertaisuus ja alhaiset kustannukset.
Tulevassa standardissa on aihealueita, joita ei ole varsinaisesti tutkittu akateemisessa maailmassa kuten Hybrid Automatic Repeat Request:in (HARQ) suorituskykyä.

Koska langaton tiedonsiirto on epälineaarinen prosessi, sitä mallinnetaan simulaattorin avulla.
Simulaattori on tehty MATLAB ympäristössä LTE:n standardien mukaisesti.
Kolme eri Multiple Input Multiple Output (MIMO) downlink HARQ skenaariota luotiin ja niiden suorituskykyä arvioitiin.
Pääpaino työn tutkimukselle kohdistuu kolmen HARQ:n suorituskykyyn, tosin simulaattorimallin todistaminen on myös keskeinen osa tätä työtä.
ED:2011-03-10
INSSI record number: 41569
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