Abstract
We compare the asymptotic performance of parallel concatenated codes (PCCs) and serial concatenated codes (SCCs) over GF(4). We construct such codes using optimal nonbinary convolutional codes where optimality is in the sense of achieving the largest minimum distance for a fixed number of encoder states. Code rates of the form K0/(K0 + 1) for K0 = 1, 8, and 64 are considered. For all of these code rates, we find the minimum distance and its multiplicity for both concatenated code systems. This is accomplished by feeding the encoder with all possible weight-two and weight-three input information patterns and monitoring, at the output of the encoder, the weight of the corresponding codewords and their multiplicity. Our analytical results indicate that the SCC codes outperform their counterpart PCC codes with much lower complexity.
| Original language | English |
|---|---|
| Title of host publication | 8th International Conference on Communication Systems, ICCS 2002 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 327-331 |
| Number of pages | 5 |
| ISBN (Electronic) | 0780375106, 9780780375109 |
| DOIs | |
| Publication status | Published - 2002 |
| Externally published | Yes |
| Event | 8th International Conference on Communication Systems, ICCS 2002 - Singapore, Singapore Duration: 25 Nov 2002 → 28 Nov 2002 |
Other
| Other | 8th International Conference on Communication Systems, ICCS 2002 |
|---|---|
| Country | Singapore |
| City | Singapore |
| Period | 25/11/02 → 28/11/02 |
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Keywords
- convolutional codes
- Nonbinary turbo codes
- parallel concatenated codes
- serial concatenated codes
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
Cite this
On parallel and serial concatenated convolutional codes over GF(4). / Ghrayeb, Ali; Abualrub, T.
8th International Conference on Communication Systems, ICCS 2002 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2002. p. 327-331 1182491.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - On parallel and serial concatenated convolutional codes over GF(4)
AU - Ghrayeb, Ali
AU - Abualrub, T.
PY - 2002
Y1 - 2002
N2 - We compare the asymptotic performance of parallel concatenated codes (PCCs) and serial concatenated codes (SCCs) over GF(4). We construct such codes using optimal nonbinary convolutional codes where optimality is in the sense of achieving the largest minimum distance for a fixed number of encoder states. Code rates of the form K0/(K0 + 1) for K0 = 1, 8, and 64 are considered. For all of these code rates, we find the minimum distance and its multiplicity for both concatenated code systems. This is accomplished by feeding the encoder with all possible weight-two and weight-three input information patterns and monitoring, at the output of the encoder, the weight of the corresponding codewords and their multiplicity. Our analytical results indicate that the SCC codes outperform their counterpart PCC codes with much lower complexity.
AB - We compare the asymptotic performance of parallel concatenated codes (PCCs) and serial concatenated codes (SCCs) over GF(4). We construct such codes using optimal nonbinary convolutional codes where optimality is in the sense of achieving the largest minimum distance for a fixed number of encoder states. Code rates of the form K0/(K0 + 1) for K0 = 1, 8, and 64 are considered. For all of these code rates, we find the minimum distance and its multiplicity for both concatenated code systems. This is accomplished by feeding the encoder with all possible weight-two and weight-three input information patterns and monitoring, at the output of the encoder, the weight of the corresponding codewords and their multiplicity. Our analytical results indicate that the SCC codes outperform their counterpart PCC codes with much lower complexity.
KW - convolutional codes
KW - Nonbinary turbo codes
KW - parallel concatenated codes
KW - serial concatenated codes
UR - http://www.scopus.com/inward/record.url?scp=84961689533&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84961689533&partnerID=8YFLogxK
U2 - 10.1109/ICCS.2002.1182491
DO - 10.1109/ICCS.2002.1182491
M3 - Conference contribution
SP - 327
EP - 331
BT - 8th International Conference on Communication Systems, ICCS 2002 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -