The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A modulação de fase contínua (CPM) é um esquema de modulação digital muito atraente, com recurso de envelope constante e alta eficiência no atendimento aos requisitos de potência e largura de banda. Sinais CPM com pares de sequências de entrada que diferem em um número infinito de posições e mapeados em pares de sinais transmitidos com distância euclidiana finita (ED) são chamados de catastróficos. No esquema CPM, as sequências de dados que possuem a propriedade catastrófica são chamadas de sequências catastróficas; eles são padrões de dados de diferença periódicos. As sequências catastróficas são geralmente com menor comprimento de fusão. O ED quadrático mínimo normalizado correspondente (MNSED) é menor e abaixo do limite de distância. Dois esquemas de CPM importantes, a saber, LREC e LOs esquemas RC são conhecidos por serem catastróficos na maioria dos casos; eles têm baixo desempenho geral de potência e largura de banda. Na literatura, foi demonstrado que a probabilidade de gerar tais sequências catastróficas é insignificante, portanto, o desempenho do erro assintótico (AEP) desses esquemas CPM catastróficos bem conhecidos avaliados com o MNSED correspondente, sobre canais AWGN, pode ser muito negativo ou pessimista. Para lidar com este problema no canal AWGN, este artigo apresenta um novo MNSED com fusão dividida e fornece critérios para explorar qual esquema de CPM catastrófico convencional poderia aumentar efetivamente a duração das fusões com eventos não periódicos com fusão dividida. Para comparação, investigamos o desempenho exato de potência e largura de banda para LREC e LRC CPM para a mesma ocupação de largura de banda. Os resultados da simulação computacional verificam que a avaliação do AEP com o MNSED dividido e mesclado poderia atingir um ganho de até 3dB em relação à abordagem convencional.
Richard Hsin-Hsyong YANG
National Kaohsiung University of Science and Technology
Chia-Kun LEE
National Kaohsiung University of Science and Technology
Shiunn-Jang CHERN
Tamkang University
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Richard Hsin-Hsyong YANG, Chia-Kun LEE, Shiunn-Jang CHERN, "Performance Improvement of the Catastrophic CPM Scheme with New Split-Merged MNSED" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 11, pp. 2091-2103, November 2019, doi: 10.1587/transcom.2018EBP3143.
Abstract: Continuous phase modulation (CPM) is a very attractive digital modulation scheme, with constant envelope feature and high efficiency in meeting the power and bandwidth requirements. CPM signals with pairs of input sequences that differ in an infinite number of positions and map into pairs of transmitted signals with finite Euclidean distance (ED) are called catastrophic. In the CPM scheme, data sequences that have the catastrophic property are called the catastrophic sequences; they are periodic difference data patterns. The catastrophic sequences are usually with shorter length of the merger. The corresponding minimum normalized squared ED (MNSED) is smaller and below the distance bound. Two important CPM schemes, viz., LREC and LRC schemes, are known to be catastrophic for most cases; they have poor overall power and bandwidth performance. In the literatures, it has been shown that the probability of generating such catastrophic sequences are negligible, therefore, the asymptotic error performance (AEP) of those well-known catastrophic CPM schemes evaluated with the corresponding MNSED, over AWGN channels, might be too negative or pessimistic. To deal with this problem in AWGN channel, this paper presents a new split-merged MNSED and provide criteria to explore which conventional catastrophic CPM scheme could increase the length of mergers with split-merged non-periodic events, effectively. For comparison, we investigate the exact power and bandwidth performance for LREC and LRC CPM for the same bandwidth occupancy. Computer simulation results verify that the AEP evaluating with the split-merged MNSED could achieve up to 3dB gain over the conventional approach.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3143/_p
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@ARTICLE{e102-b_11_2091,
author={Richard Hsin-Hsyong YANG, Chia-Kun LEE, Shiunn-Jang CHERN, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Improvement of the Catastrophic CPM Scheme with New Split-Merged MNSED},
year={2019},
volume={E102-B},
number={11},
pages={2091-2103},
abstract={Continuous phase modulation (CPM) is a very attractive digital modulation scheme, with constant envelope feature and high efficiency in meeting the power and bandwidth requirements. CPM signals with pairs of input sequences that differ in an infinite number of positions and map into pairs of transmitted signals with finite Euclidean distance (ED) are called catastrophic. In the CPM scheme, data sequences that have the catastrophic property are called the catastrophic sequences; they are periodic difference data patterns. The catastrophic sequences are usually with shorter length of the merger. The corresponding minimum normalized squared ED (MNSED) is smaller and below the distance bound. Two important CPM schemes, viz., LREC and LRC schemes, are known to be catastrophic for most cases; they have poor overall power and bandwidth performance. In the literatures, it has been shown that the probability of generating such catastrophic sequences are negligible, therefore, the asymptotic error performance (AEP) of those well-known catastrophic CPM schemes evaluated with the corresponding MNSED, over AWGN channels, might be too negative or pessimistic. To deal with this problem in AWGN channel, this paper presents a new split-merged MNSED and provide criteria to explore which conventional catastrophic CPM scheme could increase the length of mergers with split-merged non-periodic events, effectively. For comparison, we investigate the exact power and bandwidth performance for LREC and LRC CPM for the same bandwidth occupancy. Computer simulation results verify that the AEP evaluating with the split-merged MNSED could achieve up to 3dB gain over the conventional approach.},
keywords={},
doi={10.1587/transcom.2018EBP3143},
ISSN={1745-1345},
month={November},}
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TY - JOUR
TI - Performance Improvement of the Catastrophic CPM Scheme with New Split-Merged MNSED
T2 - IEICE TRANSACTIONS on Communications
SP - 2091
EP - 2103
AU - Richard Hsin-Hsyong YANG
AU - Chia-Kun LEE
AU - Shiunn-Jang CHERN
PY - 2019
DO - 10.1587/transcom.2018EBP3143
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2019
AB - Continuous phase modulation (CPM) is a very attractive digital modulation scheme, with constant envelope feature and high efficiency in meeting the power and bandwidth requirements. CPM signals with pairs of input sequences that differ in an infinite number of positions and map into pairs of transmitted signals with finite Euclidean distance (ED) are called catastrophic. In the CPM scheme, data sequences that have the catastrophic property are called the catastrophic sequences; they are periodic difference data patterns. The catastrophic sequences are usually with shorter length of the merger. The corresponding minimum normalized squared ED (MNSED) is smaller and below the distance bound. Two important CPM schemes, viz., LREC and LRC schemes, are known to be catastrophic for most cases; they have poor overall power and bandwidth performance. In the literatures, it has been shown that the probability of generating such catastrophic sequences are negligible, therefore, the asymptotic error performance (AEP) of those well-known catastrophic CPM schemes evaluated with the corresponding MNSED, over AWGN channels, might be too negative or pessimistic. To deal with this problem in AWGN channel, this paper presents a new split-merged MNSED and provide criteria to explore which conventional catastrophic CPM scheme could increase the length of mergers with split-merged non-periodic events, effectively. For comparison, we investigate the exact power and bandwidth performance for LREC and LRC CPM for the same bandwidth occupancy. Computer simulation results verify that the AEP evaluating with the split-merged MNSED could achieve up to 3dB gain over the conventional approach.
ER -