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Lecture Notes on Mobile Communication
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Preface
It's been many years that I'm teaching the subject \Mobile Communication"
(EC632) to the IIT Guwahati students and the current lecture notes intend to act
as a supplement to that course so that our students can have an access to this
course anytime. This course is mainly aimed toward senior year students of the
ECE discipline, and in particular, for the nal year BTech, rst year MTech and
PhD students. However, this does not necessarily imply that any other discipline
students can not study this course. Rather, they also should delve deeper into
this course since mobile communication is a familiar term to everyone nowadays.
Although the communication aspects of this subject depends on the fundamentals of
another interesting subject, communication engineering, I would strongly advocate
the engineering students to go through the same in order to grow up adequate
interest in this eld. In fact, the present lecture notes are designed in such a way
that even a non-ECE student also would get certain basic notions of this subject.
The entire lecture notes are broadly divided into 8 chapters, which, I consider to
be most rudimentary topics to know the basics of this subject. The advance level
topics are avoided intensionally so as to give space to the possibility of developing
another lecture note in that area. In fact, this area is so vast and changing so fast
over time, there is no limit of discussing the advanced level topics. The current focus
has been therefore to deal with those main topics which would give a senior student
sucient exposure to this eld to carry out further study and/or research. Initially,
after dealing with the introductory concepts (i.e., what is mobile communication,
how a mobile call is made etc) and the evolution of mobile communication systems till
the present day status, the cellular engineering fundamentals are discussed at length
to make the students realize the importance of the practical engineering aspects of
this subject. Next, the di erent kinds of mobile communication channels is taken
up and large scale path loss model as well as small scale fading e ects are dealt,
both with simulation and statistical approaches. To enhance the link performance
amidst the adverse channel conditions, the transmitter and receiver techniques are
i
discussed next. It is further extended with three main signal processing techniques
at the receiver, namely, equalization, diversity and channel coding. Finally, di erent
kinds of multiple access techniques are covered at length with the emphasis on how
several mobile communication techniques evolve via this. It should also be mentioned
that many gures in the lecture notes have been adopted from some standard text
books to keep the easy
ow of the understanding of the topics.
During the process of developing the lecture notes, I have received kind helps
from my friends, colleagues as well as my post graduate and doctoral students which
I must acknowledge at the onset. I'm fortunate to have a group of energetic students
who have helped me a lot. It is for them only I could nish this project, albeit a
bit late. My sincere acknowledgment should also go to my parents and my younger
brother who have nicely reciprocated my oblivion nature by their nourishing and
generous attitude toward me since my childhood.
Finally, about the satisfaction of the author. In general, an author becomes
happy if he/she sees that his/her creation could instill certain sparks in the reader's
mind. The same is true for me too. Once Bertrand Russell said \Science may set
limits to knowledge, but should not set limits to imagination". If the readers can
visualize the continuously changing technology in this eld after reading this lecture
notes and also can dream about a future career in the same, I'll consider my endeavor
to be successful. My best wishes to all the readers.
Abhijit Mitra
November 2009
Dr. Abhijit Mitra - Personal Name
NONE
Information Technology
English
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