Papers by Masud Hasan Sujon
This thesis is related with the WiMAX (Worldwide Interoperatibility for Microwave Access) technol... more This thesis is related with the WiMAX (Worldwide Interoperatibility for Microwave Access) technology. Today, different types of cellular networks are actively working on the radio links. For instance, the Global System for Mobile Communication (GSM) is being used in nearly all of the countries of the world and currently it has around three billion users all over the world. Universal Mobile Telecommunication System (UMTS) is currently deployed in many countries and it is providing increased data rates, coverage and mobility as compared to GSM. Wireless Local Area Networks (WLAN) are very famous when we have a small area and none real time services. Worldwide Interoperability for Microwave Access (WiMAX) is a new technology and it is in deployment phase. In all these cellular technologies, we have very limited resources and we have to make best use of them by proper management. Radio Resource Management (RRM) is a control mechanism for the overall system which is being used to manage radio resources in the air interface inside a cellular network. The main objective is to utilize the available spectral resources as efficiently as possible. Our aim is to use them in the best possible way to maximize the performance and spectral efficiency in such a way that we have maximum number of users in our network and Quality of Service (QoS) is up to the mark. In a cellular communication system, a service area or a geographical region is divided into a number of cells and each cell is served by an infrastructure element called the base station which works through a radio interface. The frequency license fees, real estate, distribution network and maintenance are the issues which dominates the cost for deploying a cellular network. In RRM, we control parameters like Radio Frequency (RF) planning, link budgeting, modulation schemes, channel access schemes etc. RF planning includes cell planning, coverage of the network and capacity of the network. Our main focus in this thesis will be on cell planning and link budgeting and we will discuss them in context of a WiMAX network.
DESIGN OF LOW COST UNDERWATER NETWORK, 2017
Underwater Sensor Networks (USN) has been of growing interest in recent years. USN are envisioned... more Underwater Sensor Networks (USN) has been of growing interest in recent years. USN are envisioned to monitor pollution and harmful algal blooms, provide an early warning for natural disasters, aid in surveillance applications for defense purposes, and assist in finding and recovering wrecked ships and aircrafts. Most USN requires wireless communication and currently acoustics is the primary modality of choice even though it presents a difficult channel. To try and cope with the challenges of the channel many MAC protocols and PHY layer techniques have been proposed. In this thesis the author presents a research platform that allows developers to easily implement and compare their protocols in an underwater network and configure them at runtime. The platform was created using widely supported software that has been successfully used in terrestrial radio and network development. The flexibility of development tools such as software defined radio has provided the ability for rapid growth in the community. This platform adapts some of these tools to work well with the underwater environment while maintaining flexibility, ultimately providing an end-to-end networking approach for underwater acoustic development. The author has demonstrated how this platform can be used by developing a protocol for underwater dynamic channel assignment in USNs. The network resources of free spaces, can equivalently use in underwater considering losses.
This work is related with the WiMAX (Worldwide Interoperatibility for Microwave Access) technolog... more This work is related with the WiMAX (Worldwide Interoperatibility for Microwave Access) technology. Today, different types of cellular networks are actively working on the radio links. For instance, the Global System for Mobile Communication (GSM) is being used in nearly all of the countries of the world and currently it has around three billion users all over the world. Universal Mobile Telecommunication System (UMTS) is currently deployed in many countries and it is providing increased data rates, coverage and mobility as compared to GSM. Wireless Local Area Networks (WLAN) are very famous when we have a small area and none real time services. Worldwide Interoperability for Microwave Access (WiMAX) is a new technology and it is in deployment phase. In all these cellular technologies, we have very limited resources and we have to make best use of them by proper management. Radio Resource Management (RRM) is a control mechanism for the overall system which is being used to manage radio resources in the air interface inside a cellular network. The main objective is to utilize the available spectral resources as efficiently as possible. Our aim is to use them in the best possible way to maximize the performance and spectral efficiency in such a way that we have maximum number of users in our network and Quality of Service (QoS) is up to the mark. In a cellular communication system, a service area or a geographical region is divided into a number of cells and each cell is served by an infrastructure element called the base station which works through a radio interface. The frequency license fees, real estate, distribution network and maintenance are the issues which dominates the cost for deploying a cellular network. In RRM, we control parameters like Radio Frequency (RF) planning, link budgeting, modulation schemes, channel access schemes etc. RF planning includes cell planning, coverage of the network and capacity of the network. Our main focus in this thesis will be on cell planning and link budgeting and we will discuss them in context of a WiMAX network.
Thesis Chapters by Masud Hasan Sujon
Abstract— Underwater Sensor Networks (USN) has
been growing interest in recent years. USN are env... more Abstract— Underwater Sensor Networks (USN) has
been growing interest in recent years. USN are envisioned to
monitor pollution and harmful algal blooms, provide an early
warning for natural disasters, aid in surveillance applications
for defense purposes, and assist in finding and recovering
wrecked ships and aircrafts. Most USN requires wireless
communication and currently acoustics is the primary
modality of choice even though it presents a difficult channel.
To try and cope with the challenges of the channel many MAC
protocols and PHY layer techniques have been proposed. In
this thesis the author presents a research platform that allows
developers to easily implement and compare their protocols in
an underwater network and configure them at runtime. The
platform was created using widely supported software that has
been successfully used in terrestrial radio and network
development. The flexibility of development tools such as
software defined radio has provided the ability for rapid
growth in the community. This platform adapts some of these
tools to work well with the underwater environment while
maintaining flexibility, ultimately providing an end-to-end
networking approach for underwater acoustic development.
The author has demonstrated how this platform can be used by
developing a protocol for underwater dynamic channel
assignment in USNs. The network resources of free spaces,
can equivalently use in underwater considering losses.
In addition to developing a highly configurable
acoustic modem, this thesis also introduces a card based
design for optical communication. Optics is used for a low
power, short distance alternative to the high power acoustics.
Both platforms have been demonstrated in real world
scenarios and can be controlled from an embedded Linux
platform allowing for a single application to have access to
both modalities simultaneously.
Uploads
Papers by Masud Hasan Sujon
Thesis Chapters by Masud Hasan Sujon
been growing interest in recent years. USN are envisioned to
monitor pollution and harmful algal blooms, provide an early
warning for natural disasters, aid in surveillance applications
for defense purposes, and assist in finding and recovering
wrecked ships and aircrafts. Most USN requires wireless
communication and currently acoustics is the primary
modality of choice even though it presents a difficult channel.
To try and cope with the challenges of the channel many MAC
protocols and PHY layer techniques have been proposed. In
this thesis the author presents a research platform that allows
developers to easily implement and compare their protocols in
an underwater network and configure them at runtime. The
platform was created using widely supported software that has
been successfully used in terrestrial radio and network
development. The flexibility of development tools such as
software defined radio has provided the ability for rapid
growth in the community. This platform adapts some of these
tools to work well with the underwater environment while
maintaining flexibility, ultimately providing an end-to-end
networking approach for underwater acoustic development.
The author has demonstrated how this platform can be used by
developing a protocol for underwater dynamic channel
assignment in USNs. The network resources of free spaces,
can equivalently use in underwater considering losses.
In addition to developing a highly configurable
acoustic modem, this thesis also introduces a card based
design for optical communication. Optics is used for a low
power, short distance alternative to the high power acoustics.
Both platforms have been demonstrated in real world
scenarios and can be controlled from an embedded Linux
platform allowing for a single application to have access to
both modalities simultaneously.
been growing interest in recent years. USN are envisioned to
monitor pollution and harmful algal blooms, provide an early
warning for natural disasters, aid in surveillance applications
for defense purposes, and assist in finding and recovering
wrecked ships and aircrafts. Most USN requires wireless
communication and currently acoustics is the primary
modality of choice even though it presents a difficult channel.
To try and cope with the challenges of the channel many MAC
protocols and PHY layer techniques have been proposed. In
this thesis the author presents a research platform that allows
developers to easily implement and compare their protocols in
an underwater network and configure them at runtime. The
platform was created using widely supported software that has
been successfully used in terrestrial radio and network
development. The flexibility of development tools such as
software defined radio has provided the ability for rapid
growth in the community. This platform adapts some of these
tools to work well with the underwater environment while
maintaining flexibility, ultimately providing an end-to-end
networking approach for underwater acoustic development.
The author has demonstrated how this platform can be used by
developing a protocol for underwater dynamic channel
assignment in USNs. The network resources of free spaces,
can equivalently use in underwater considering losses.
In addition to developing a highly configurable
acoustic modem, this thesis also introduces a card based
design for optical communication. Optics is used for a low
power, short distance alternative to the high power acoustics.
Both platforms have been demonstrated in real world
scenarios and can be controlled from an embedded Linux
platform allowing for a single application to have access to
both modalities simultaneously.