- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- A soft decision concatenated coding scheme for mobile...
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
A soft decision concatenated coding scheme for mobile packet radio applications Poon, Patrick C.H.
Abstract
Concatenated coding systems can offer good error performance over severely degraded channels. The combination of an inner trellis code and an outer Reed Solomon code has been a popular choice since it offers a good compromise between performance and complexity. In this thesis, a concatenated coded modulation scheme based on trellis coded modulation and a Reed Solomon code in the presence of Rayleigh fading is studied. The inner decoding process uses a soft output Viterbi algorithm which produces reliability information along with its output. This information is used to erase unreliable symbols in the decoded output. An errors-erasures Reed Solomon decoder is then used for the outer code. The block error probability performance gain achievable through the use of a soft output Viterbi algorithm in concatenated coding is studied using analysis and simulation. The effect of finite interleaving for the outer code is also considered.
Item Metadata
Title |
A soft decision concatenated coding scheme for mobile packet radio applications
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
1996
|
Description |
Concatenated coding systems can offer good error performance over severely
degraded channels. The combination of an inner trellis code and an outer Reed Solomon code
has been a popular choice since it offers a good compromise between performance and
complexity.
In this thesis, a concatenated coded modulation scheme based on trellis coded modulation
and a Reed Solomon code in the presence of Rayleigh fading is studied. The inner
decoding process uses a soft output Viterbi algorithm which produces reliability information
along with its output. This information is used to erase unreliable symbols in the decoded
output. An errors-erasures Reed Solomon decoder is then used for the outer code.
The block error probability performance gain achievable through the use of a soft
output Viterbi algorithm in concatenated coding is studied using analysis and simulation. The
effect of finite interleaving for the outer code is also considered.
|
Extent |
4097535 bytes
|
Genre | |
Type | |
File Format |
application/pdf
|
Language |
eng
|
Date Available |
2009-02-12
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0065313
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Graduation Date |
1996-11
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.