Inlämning av Examensarbete / Submission of Thesis

Emmanuel Olusegun Owolabi; Vivien Ibironke Ibiyemi , pp. 87. ING/School of Engineering, 2011.

The work

Författare / Author: Emmanuel Olusegun Owolabi, Vivien Ibironke Ibiyemi
emanueling@yahoo.com, ronkeibiyemi@yahoo.com
Titel / Title: COEXISTENCE OF WLAN AND WWAN IN A NOTEBOOK
Översatt titel / Translated title: Samexistens mellan WLAN och WWAN i en anteckningsbok
Abstrakt Abstract:

A modern notebook can be equipped with several devices of wireless
network access technologies, such as Wireless Local Area Network
(WLAN), Wireles Wide Area Network (WWAN), Wireless Personal
Area Network (WPAN), and radio based navigation systems, such as
GNSS (Global Navigation Satellite System). Future mobile devices will
have different radio technologies such as Long Term Evolution (LTE),
Wideband Code Division Multiple Access (WCDMA) and WLAN
transceivers co-existing on the same module that enables such a device
to connect to the different radio technologies.
With these radio technologies present in the same device, care must
be taken to minimize the interference between them. In this master
thesis, we analyze the co-existence of WLAN in the 2.4GHz ISM
band, GSM 1800MHz/900MHz, and WCDMA FDD in the 800MHz
and 2.1GHz band when they are embedded in a notebook. Different
coexistence scenarios have been considered during this work, with focus
on realistic power levels for the victim system as well as the aggressor
system, and the actual antenna coupling measured for different notebooks.
These measurements and the realistic power levels computed are
results that will be a factor to consider when designing WLAN/WWAN
coexistence module.
This work is divided into seven major parts.
Chapter 1 is an introduction to coexistence, and a description of the
different radio access technologies considered.
Chapter 2 is the state of the art. This is a brief discussion of previous
related work on coexistence.
v
“ThesisReport” — 2011/6/22 — 13:43 — page vi — #6
Chapter 3 is the problem statement definition describing the research
problems and hypothesis.
Chapter 4 describes the measurement plan, devices and parameters
considered in developing the test environment and the different measurement
scenarios.
Chapter 5 presents the measurement setup and procedures undertaken
in achieving the measurement.
Chapter 6 is the result analysis.
Chapter 7 presents conclusion and future work.

Populärvetenskaplig beskrivning / Popular science summary: En modern bärbar dator kan utrustas med flera enheter för trådlös nätverksåtkomst teknik, såsom Wireless Local Area Network (WLAN), Trådlöst Wide Area Network (WWAN), Wireless Personal Area Network (WPAN) och radiobaserade navigationssystem, till exempel GNSS (Global Navigation Satellite System). Framtida mobila enheter kommer har olika radiotekniker som Long Term Evolution (LTE),
Wideband Code Division Multiple Access (WCDMA) och WLAN
transceivers samexisterande på samma modul som möjliggör en sådan anordning att ansluta till olika radiotekniker.
Med dessa radioteknik som finns i samma enhet, man måste
vidtas för att minimera störningarna mellan dem. I detta mästare
Avhandlingen analyserar vi samexistensen av WLAN i 2,4 GHz ISM band, GSM 1800MHz/900MHz och WCDMA FDD i 800MHz
och 2,1 GHz-bandet när de är inbäddade i en anteckningsbok. Olika samexistens scenarier har övervägas under detta arbete, med fokus på realistiska effektnivåer för offret systemet samt angriparen
systemet, och det faktiska antennanslutning mäts för olika bärbara datorer.
Dessa mätningar och realistiska makten beräknade nivåer
resultat som kommer att vara en faktor att beakta när man utformar WLAN / WWAN samexistens modul.
Ämnesord / Subject: Elektroteknik - Electrotechnology
Telekommunikation - Telecommunications
Datavetenskap - Computer Science\Networks and Communications
Nyckelord / Keywords: RADIO ACCESS, INTERFERENCE, COUPLING, COEXISTENCE

Publication info

Dokument id / Document id: houn-8lhk8t
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 09/08/2011
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)

Context

Handledare / Supervisor: ABBAS MOHAMMED, LEIF R. WILHELMSSON
abbas.mohammed@bth.se, leif.r.wilhelmsson@ericsson.com
Examinator / Examiner: PROF. ABBAS MOHAMMED
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00
I samarbete med / In co-operation with: ERICSSON AB
Anmärkningar / Comments:

Emmanuel O. Owolabi: +46 73 72 484 53, +234 805 618 2123.
Vivien I. Ibiyemi: +46 73 65 943 76.

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2011owolabi.pdf (9327 kB, öppnas i nytt fönster)