الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
It introduces polar codes noting their importance, illustrates the
motivation and objectives of performance enhancement of DVB systems
using polar codes presented in this thesis. The chapter ends with
a brief summary of the thesis organization.
Chapter 2:
It presents an overview about channel coding and linear block
codes with a complete overview on currently most used channel coding
techniques and illustrates error correction coding techniques used in
DVB systems like BCH and LDPC codes including their encoding and
decoding procedures.
Chapter 3:
It focuses on polar codes and gives a literature review about it and
briefly presents its construction, encoding, decoding, and some related
preliminaries. We propose a new mathematical relation to get the optimized
design point for the polar code construction. Also, it presents
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Summary
polar code construction, which depends on two main foundation criteria
which are kernel matrix and Bhattacharyya parameter related to
each other; therefore the selection method for both should optimize
the polar code’s performance. Firstly, derivation of the expressions
of the Bhattacharyya parameter bounds is proved and a method to
select between different kernel matrices to achieve optimum capacity
is introduced. Then, it presents the decoding method for the selected
3 3 kernel matrix including the proof of recursive channel transformations
for this matrix. Moreover, it shows a detailed discussion
about the polar code complexity. Finally, the simulation results are
presented to confirm the results of the selection methodology.
Chapter 4:
It proposes a generalized schematic successive cancellation decoding
for polar codes. Our proposed method fragments the main block into
some basic components whose formulas have been previously proven
by Arikan for 2 2 kernel matrix. The validity of the resulting LLR
functions is tested on different kernel matrices and proven to be similar
to those in literature. Finally, it presents the simulation results
using Cyclic redundancy check Aided - Successive Cancellation List
(CA-SCL) decoding and compare the generalized polar codes with
punctured polar codes.
Chapter 5:
It presents an overview for the simulation system model for simulation
measurements including the simulation results for optimized design
point of polar codes followed by the comparison between LDPC
and optimized polar codes. Then, it presents an overview for DVB
standards and proposes polar codes to be utilized in DVB systems
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Summary
by describing the proposed functional block that are changed to enhance
the performance of DVB systems. Moreover, the optimized
polar codes are compared with LDPC and BCH codes of DVB systems
in terms of BER, latency, throughput and proved that it can be
proposed as a FEC coding technique instead of LDPC and BCH codes
in wireless communication systems such as DVB systems. Finally, it
compares the complexity of polar code with (LDPC + BCH) codes.
Chapter 6:
It shows the main thesis conclusions and ends with suggestions for
future work.