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Dissertations / Theses on the topic '3G UMTS Networks'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Alesand, Alexander. "Emulating 3G Network Characteristics on WiFi Networks." Thesis, Linköpings universitet, Programvara och system, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-122040.

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Mobile applications should work regardless of which type of wireless interface is used, and should be able to conceal unstable connections from the user to improve user experience. Therefore, network testing is important when developing mobile applications, but it is a challenge to reproduce network conditions when using real cellular networks since the test engineer has no control over the quality of the cellular network. Existing software tools can restrict bandwidth and add latency to the connection, but these tools do not accurately emulate cellular networks. This thesis proposes a system

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2

Bergström, Andreas. "Packet Data Flow Control in Evolved WCDMA Networks." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4881.

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<p>The key idea of the new, shared high-capacity channel HSDPA, is to adapt the transmission rate to fast variations in the current radio conditions, thus enabling download peak data rates much higher than what WCDMA can offer today. This has induced a need for data that traverses the mobile network to be intermediately buffered in the Radio Base Station, RBS. A scheduling algorithm then basically selects the user with the most beneficial instantaneous radio conditions for access to the high-speed channel and transmission of its data over the air interface.</p><p>The purpose of this thesis is

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3

Nader, Gustavo. "Ultra Wideband Interference on Third-Generation Wireless Networks." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/30046.

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As a license-exempt technology, Ultra Wideband (UWB) can be used for numerous commercial and military applications, including ranging, sensing, low-range networking and multimedia consumer products. In the networking and consumer fields, the technology is envisioned to reach the mass market, with a very high density of UWB devices per home and office. The technology is based on the concept of transmitting a signal with very low power spectral density (PSD), while occupying a very wide bandwidth. In principle, the low emissions mask protects incumbent systems operating in the same spectrum from

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4

Fredholm, Kenth, and Kristian Nilsson. "Implementing an application for communication and quality measurements over UMTS networks." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1666.

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<p>The interest for various multimedia services accessed via the Internet has been growing immensely along with the bandwidth available. A similar development has emerged in the 3G mobile network. The focus of this master thesis is on the speech/audio part of a 3G multimedia application. The purpose has been to implement a traffic generating tool that can measure QoS (Quality of Service) in 3G networks. The application is compliant to the 3G standards, i.e. it uses AMR (Adaptive Multi Rate), SIP (Session Initiation Protocol) and RTP (Real Time Transport Protocol). AMR is a speech compression a

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5

Eriksson, Jonas. "Providing Quality of Service for Streaming Applications in Evolved 3G Networks." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2177.

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<p>The third generation, 3G, mobile telephone systems are designed for multimedia communication and will offer us similar services as in our stationary computers. This will involve large traffic loads, especially in the downlink direction, i.e. from base station to terminal. To improve the downlink capacity for packet data services a new concept is included in evolved 3G networks. The concept is called High Speed Data Packet Access, HSDPA, and provides peak bit rates of 14 Mbps. HSDPA uses a so-called best effort channel, i.e. it is developed for services that do not require guaranteed bit rat

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6

Kommalapati, Ravichandra. "Performance of 3G data services over Mobile Networks in Sweden." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4698.

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The emerging technologies in the field of telecommunications enable us to access high speed data services through mobile handsets and portable modems over the mobile networks. The recent statistics also shows the use of mobile broad band services are increasing and gaining popularity. In this thesis we have investigated the impact of payload size and data rate on one-way delay and packet loss in operational 3G mobile networks, through network level measurements. To collect the network level traces an experimental testbed is developed. For accurate measurement Endace DAG cards together with GPS

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7

QADEER, MUHAMMAD, and MUHAMMAD HUMRAN KHAN. "APSEN Analysis for Beyond 3G Wireless Networks." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1210.

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The beyond 3G official IEEE name for next generation of wireless technology, some people also called it as 4G (fourth-generation) mobile communication systems. Beyond 3G will be used largely to contain not only cellular telephone systems but also several types of broadband wireless access communication systems, have been attracting much interest in the mobile communication field. A new age has begun for telecommunication industry. Over the past decade wireless industry has grown at a remarkable pace, consequently level of technology development goes beyond the level of customer desire. Applica

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8

Saleh, Areej. "A Location-aided Decision Algorithm for Handoff Across Heterogeneous Wireless Overlay Networks." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/10043.

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Internetworking third generation (3G) technologies with wireless LAN (WLAN) technologies such as Universal Mobile Telecommunication Systems (UMTS) and IEEE 802.11, respectively, is an emerging trend in the wireless domain. Its development was aimed at increasing the UMTS network's capacity and optimizing performance. The increase in the number of wireless users requires an increase in the number of smaller WLAN cells in order to maintain an acceptable level of QoS. Deploying smaller cells in areas of higher mobility (e.g., campuses, subway stations, city blocks, malls, etc.) results in the us

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9

Prihodko, Mihails. "Energy Consumption in Location Sharing Protocols for Android Applications." Thesis, Linköpings universitet, Programvara och system, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-86762.

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This thesis studies the Message Queue Telemetry Transport protocol (MQTT) as an application layer protocol in geographical location sharing applications using third generation cellular communication (3G). The MQTT protocol is compared in terms of energy efficiency and amount of data generated with the Hypertext Transfer Protocol (HTTP), which is currently used in typical location sharing applications. In order to compare the communication energy efficiency of both protocols a location sharing application prototype was developed for the Android platform. The application allows the use of HTTP a

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10

Jacobs, Fabian Mark. "The effects of network factors on the performance of 3G UMTS applications." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/12391.

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Includes bibliographical references (leaves 139-148).<br>3G is the wireless network technology expected to allow wireless applications to perform on par with wired applications. However 3G has factors which limit its performance. These factors include both device factors such as small screens, limited battery power and life, as well as network factors such as high delay networks and low bandwidths. This thesis investigates the following: how network factors affect the performance of 3G UMTS applications; which network factors have the most significant impact on a specific application; whether

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11

Björsson, Anders. "Simulation analysis of RLC/MAC for UMTS in Network Simulator version 2." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2105.

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<p>The Internet has mainly been interconnecting stationary computers by wired links, but an increasing number of mobile clients require wireless communication. One way to connect these clients is to use the Universal Mobile Telecommunication System, UMTS. UMTS is a third generation mobile system. </p><p>A network can be seen as nodes interconnected by links. The functionality of the nodes can be described as a layered hierarchy. A reference model for this hierarchy was developed by OSI. In this model the second lowest layer is called data link layer. The data link layer is responsible for maki

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12

Mann, Tracy L. "A Network System Level Simulator for Investigating the Interworking of Wireless LAN and 3G Mobile Systems." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31868.

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Recent research supports the eventual convergence of wireless LAN (WLAN) and cellular systems in order to achieve the IMT-2000 (3G) requirement for 2 Mbps indoor capacities. The WLAN access point can be enhanced to either incorporate or supplant the transmission and packet data capabilities in the cellular network. This research used OPNETâ ¢ to design, implement, and test a network system level simulation environment to allow investigators to study the issues and trade-offs for interworking the infrastructure-based WLAN technologies into 3G mobile subscriber cellular systems. The specific

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13

Nasri, Ridha. "Paramétrage Dynamique et Optimisation Automatique des Réseaux Mobiles 3G et 3G+." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00494190.

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La télécommunication radio mobile connait actuellement une évolution importante en termes de diversité de technologies et de services fournis à l'utilisateur final. Il apparait que cette diversité complexifie les réseaux cellulaires et les opérations d'optimisation manuelle du paramétrage deviennent de plus en plus compliquées et couteuses. Par conséquent, les couts d'exploitation du réseau augmentent corrélativement pour les operateurs. Il est donc essentiel de simplifier et d'automatiser ces taches, ce qui permettra de réduire les moyens consacrés à l'optimisation manuelle des réseaux. De pl

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14

Otárola, Correa Diego Antonio, and Gonzales Frank Campos. "Modernización de la red de acceso de un operador móvil para el caso de Lima Metropolitana." Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1277.

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La presente tesina titulada “Modernización de la red de acceso de un operador móvil para el caso de Lima Metropolitana” expone una propuesta para un operador que tiene como objetivo poder incrementar su cobertura de servicio de segunda y cuarta generación, para esto se definen conceptos teóricos en base a lo que son las tecnologías de telefonía móvil celular de tipo GSM, UMTS y LTE y se compararan con las características técnicas de los equipos que se plantean usar demostrándose que estos pueden optimizar la red de acceso del operador en cobertura y funcionamiento para brindar un mejor servici

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15

Chueh, Hung-Shih, and 闕宏時. "An All-MPLS Approach for UMTS 3G Core Networks." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/70144420479396877692.

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碩士<br>國立交通大學<br>資訊科學系<br>91<br>In this thesis, we present an all-MPLS approach for UMTS 3G core networks. GTP-tunnel has been defined by 3GPP as the transport mechanism for UMTS. For each packet transmission, extra GTP, UDP, and IP headers (40-byte) are required. For short packets, such as VoIP payloads, transmission overhead is very high. Enhanced-GTP was proposed to eliminate the need for a GTP header. Since its operation mode is limited to non-transport mode only, NAT is required in GGSN. Furthermore, its performance improvement is limited, because an extra IP header (20-byte) is still need

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16

Ιγγλέσης, Ευάγγελος. "Μετάδοση δεδομένων σε κινητά δίκτυα επικοινωνιών 3ης γενιάς". 2005. http://nemertes.lis.upatras.gr/jspui/handle/10889/146.

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Στόχος της παρούσας διπλωματικής εργασίας είναι η μελέτη της μετάδοσης δεδομένων πάνω από Κινητά Δίκτυα 3ης Γενιάς και συγκεκριμένα του δικτύου UMTS (Universal Mobile Telecommunications Systems). Την τελευταία δεκαετία τόσο η Κυψελωτή Κινητή Τηλεφωνία όσο και το Διαδίκτυο έχουν γνωρίσει τρομακτική εξάπλωση παγκοσμίως. Η ανάγκη του ανθρώπου για κινητικότητα από τη μια, και η ανάγκη για πρόσβαση σε πληροφορία και υπηρεσίες από την άλλη, οδήγησε στη σύγκλιση των δυο παραπάνω «κόσμων» μέσα από τα Κινητά Δίκτυα 3ης Γενιάς. Το δίκτυο UMTS, οδηγείται προς τη φιλοσοφία ενός all-IP δικτύου, που επιτρέπ

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17

Awan, Irfan U., and Khalid Al-Begain. "Maintaining QoS through preferential treatment to UMTS services." 2003. http://hdl.handle.net/10454/476.

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One of the main features of the third generation (3G) mobile networks is their capability to provide different classes of services; especially multimedia and real-time services in addition to the traditional telephony and data services. These new services, however, will require higher Quality of Service (QoS) constraints on the network mainly regarding delay, delay variation and packet loss. Additionally, the overall traffic profile in both the air interface and inside the network will be rather different than used to be in today's mobile networks. Therefore, providing QoS for the new services

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18

Cortesão, Rodrigo Ramalho de Lobato. "Efficient cloud-based cellular planning algorithms for 3G and 4G networks." Master's thesis, 2019. http://hdl.handle.net/10071/22212.

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In mobile network deployments of growing size, the optimum and fast planning of radio resources are a key task. Cloud services enable efficient and scalable implementation of procedures and algorithms. In this dissertation, a cloud-based planning system for 3G and 4G networks is presented, using Amazon Web Services (AWS) for cloud implementation. It extracts configuration and performance data from the network, enabling to accurately estimate cells coverage, identify neighbouring cells and optimally plan Scrambling Codes (SC) in an UMTS network and Physical Cell Identity (PCI) in LTE net

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19

Anand, Kunde. "Providing QoS To Real-time And Data Applications In 3G Wireless Systems." Thesis, 2008. http://hdl.handle.net/2005/795.

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In this thesis we address the problem of providing end-to-end quality of service (QoS) to real-time and data connections in a third generation (3G) cellular network based on the Universal Mobile Telecommunication System (UMTS) standard. Data applications usually use TCP (Transmission Control Protocol) and the QoS is a minimum guaranteed mean throughput. For this one first needs to compute the throughput of a TCP connection sending its traffic through the UMTS network (possibly also through the wired part of the Internet). Thus we obtain closed form expressions for a TCP throughput in a UMTS e

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20

Αλεξίου, Αντώνιος Γ. "Σχεδιασμός και ανάλυση μηχανισμών για μετάδοση δεδομένων πραγματικού χρόνου σε κινητά δίκτυα επικοινωνιών". Thesis, 2006. http://nemertes.lis.upatras.gr/jspui/handle/10889/1420.

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Η ασύρματη επικοινωνία αποκτά ιδιαίτερη αξία σε μια χώρα όπως η Ελλάδα, που η μορφολογία του εδάφους της δεν επιτρέπει πολλές φορές τη χρήση εναλλακτικών μέσων μετάδοσης όπως για παράδειγμα οι οπτικές ίνες. Ειδικότερα ο τομέας της κινητής τηλεφωνίας είναι ένας ταχύτατα εξελισσόμενος τομέας ο οποίος στις μέρες μας βρίσκεται σε ένα στάδιο μετεξέλιξής του καθώς το πέρασμα από τη δεύτερη στην τρίτη γενιά είναι πλέον γεγονός. Στη μεγάλη εξέλιξη του τομέα αυτού συμβάλουν τα μέγιστα και οι απαιτήσεις των σύγχρονων καιρών για ένα ενοποιημένο και λειτουργικό σύστημα κινητής τηλεφωνίας παρέχοντας πληθώρ

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21

Li, Xi [Verfasser]. "Radio access network dimensioning for 3G UMTS / by Xi Li." 2009. http://d-nb.info/1001233638/34.

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