Capacity and outage analysis of MIMO free space optical system with heterodyne detection over gamma-gamma turbulence channels

Other Title(s)

تحليل سعة و انقطاع خدمة الاتصالات اللاسلكية الضوئية متعددة المداخل و المخارج علي قنوات غاما غاما باستخدام الكشف الهيترودايني

Dissertant

al-Fayturi, Ahmad Umar Salim

Thesis advisor

Bani Ahmad, Umar

University

Princess Sumaya University for Technology

Faculty

King Abdullah II Faculty of Engineering

Department

Department of Electrical Engineering

University Country

Jordan

Degree

Master

Degree Date

2018

English Abstract

Due to the demand for high data rate systems to meet recent and future development in wireless technology, such as 4G, 5G and LTE, this has led many authors to investigate the performance of Free Space Optical (FSO) communications due to its ability for producing high data rate systems.

Free Space Optical communications has the ability to offer 1-2 Gbits/sec over disatnces ranging between 1- 5 km, it is also cost effective and needs no licensing for deployment.

However, FSO performance is affected by channel turbulance (fading), weather conditions and pointing errors which can severly degarade the system performance.

In this thesis, performance of multiple input-multiple output (MIMO) FSO system is considered, where the channel statistics is assumed to be quasi static, thus, allowing the channel statistics to be viewed as being constat over at least a couple of symbols.

The optical signal is defferentially encoded phase shift keying (DEPSK) signal with heterodyne detection in which the phase noise between at least two consecutive symbols is ignored in the analysis.

It is assumed that the optical signal is tarnsmitted via independent ?- transmit apartures and received via ?-receivers over Gamma- Gamma atmospheric turbulance channel.

In addition, it is also assumed that the ?- apatures are viewed by each receiver and the ? received signal components are combined using equal gain combining technique at the receiver.

Performance of three systeme metrics are cosidered in the analysis over weak to strong turbulance channel conditions.

Closed form exressions are achieved for each of the system metrics in terms of the Miejer-G function, which takes into account the turbulance strength parameters, the MIMO level and bit energy-to-noise power spectral density ratio.

The three system metrics considered are: outage probability, out rate and avergae capacity.

Numercial results are displayed as a fucntion of MIMO level and turbulance strength versus bit energy-to-noise ratio.

Finally, the closed form expressions were verified by comapring the produced resluts with previously published for the case of SISO system, in addtion, the attained results using the derived closed expressions were compared against results produced by numericlly integration for the same system and channels parameters.

Comparison of results showed excellent agreement, and thus proves accuracy of the closed form derived expressions

Main Subjects

Electronic engineering

Topics

No. of Pages

56

Table of Contents

Table of contents.

Abstract.

Abstract in Arabic.

Chapter One : Introduction.

Chapter Two : Literature review.

Chapter Three : Methodology.

Chapter Four : Results and discussion.

Chapter Five : Conclusion and future work.

References.

American Psychological Association (APA)

al-Fayturi, Ahmad Umar Salim. (2018). Capacity and outage analysis of MIMO free space optical system with heterodyne detection over gamma-gamma turbulence channels. (Master's theses Theses and Dissertations Master). Princess Sumaya University for Technology, Jordan
https://search.emarefa.net/detail/BIM-833089

Modern Language Association (MLA)

al-Fayturi, Ahmad Umar Salim. Capacity and outage analysis of MIMO free space optical system with heterodyne detection over gamma-gamma turbulence channels. (Master's theses Theses and Dissertations Master). Princess Sumaya University for Technology. (2018).
https://search.emarefa.net/detail/BIM-833089

American Medical Association (AMA)

al-Fayturi, Ahmad Umar Salim. (2018). Capacity and outage analysis of MIMO free space optical system with heterodyne detection over gamma-gamma turbulence channels. (Master's theses Theses and Dissertations Master). Princess Sumaya University for Technology, Jordan
https://search.emarefa.net/detail/BIM-833089

Language

English

Data Type

Arab Theses

Record ID

BIM-833089