رسالة جامعية

Aligning and tracking a beam steerable millimeter-wave radio link ; Keilaavan millimetriaaltoradiolinkin suuntaaminen ja seuraaminen

التفاصيل البيبلوغرافية
العنوان: Aligning and tracking a beam steerable millimeter-wave radio link ; Keilaavan millimetriaaltoradiolinkin suuntaaminen ja seuraaminen
المؤلفون: Leinonen, Tuomas
المساهمون: Putkonen, Jyri, Sähkötekniikan korkeakoulu, Viikari, Ville, Aalto-yliopisto, Aalto University
سنة النشر: 2015
المجموعة: Aalto University Publication Archive (Aaltodoc) / Aalto-yliopiston julkaisuarkistoa
مصطلحات موضوعية: 5G, antenna, beam steering, beam tracking, millimeter wave, radio wave propagation
الوصف: In order to provide high-throughput mobile broadband in a dense urban information society, upcoming cellular networks will finally employ the under-utilized millimeter-wave (mmW) frequencies. The challenging mmW radio environment, however, necessitates massive cell densification with wireless backhauling using very directional links. This thesis investigates how these links between access points may be aligned efficiently, and how alignment reflects the network organization. The work provides a thorough presentation of different high-level aspects and background information required when designing a mmW small cell system. In terms of alignment functionality, both automatic link establishment and proactive tracking are considered. Additionally, the presentation includes an overview of beam steerable antennas, mmW propagation in urban environments, and network organization. The thesis further specifies requirements, proposes possible approaches and compares those with existing implementations. Most of existing mmW beam alignment solutions are intended for short-range indoor communications and do not address the issues in cellular systems. While existing functionality considers only a single link between two devices, efficient design should consider both the entire network and the underlying phenomena. The devices should further exploit the existing network infrastructure, location and orientation information, and the concepts of machine learning. Even though the world has recently seen advancements in the related fields, there is still much work to be done before commercial deployment is possible. ; Seuraavan sukupolven matkaviestinjärjestelmien erittäin nopeissa datayhteyksissä tullaan hyödyntämään millimetriaaltoteknologiaa. Näillä taajuuksilla radioympäristö on kuitenkin hyvin haastava, mikä edellyttää verkon solutiheyden moninkertaistamista, täysin langattomia tukiasemia ja erittäin suuntaavia antenneja. Tässä diplomityössä tutkitaan eri keinoja kuinka tukiasemien väliset linkit kohdistetaan tehokkaasti, ja ...
نوع الوثيقة: master thesis
وصف الملف: application/pdf
اللغة: English
العلاقة: https://aaltodoc.aalto.fi/handle/123456789/19075Test; URN:NBN:fi:aalto-201512165593
الإتاحة: https://aaltodoc.aalto.fi/handle/123456789/19075Test
حقوق: openAccess
رقم الانضمام: edsbas.88437B5F
قاعدة البيانات: BASE