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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Modulasi fasa berterusan (CPM) ialah skim modulasi digital yang sangat menarik, dengan ciri sampul yang berterusan dan kecekapan tinggi dalam memenuhi keperluan kuasa dan lebar jalur. Isyarat CPM dengan pasangan urutan input yang berbeza dalam bilangan kedudukan yang tidak terhingga dan dipetakan ke dalam pasangan isyarat yang dihantar dengan jarak Euclidean terhingga (ED) dipanggil malapetaka. Dalam skema CPM, jujukan data yang mempunyai sifat bencana dipanggil jujukan bencana; ia adalah corak data perbezaan berkala. Urutan bencana biasanya dengan panjang penggabungan yang lebih pendek. ED kuasa dua ternormal minimum yang sepadan (MNSED) adalah lebih kecil dan di bawah sempadan jarak. Dua skim CPM penting, iaitu, LRKM dan LSkim RC, dikenali sebagai bencana untuk kebanyakan kes; mereka mempunyai kuasa keseluruhan yang lemah dan prestasi lebar jalur. Dalam kesusasteraan, telah ditunjukkan bahawa kebarangkalian untuk menjana jujukan malapetaka tersebut adalah diabaikan, oleh itu, prestasi ralat asimptotik (AEP) bagi skim CPM bencana yang terkenal yang dinilai dengan MNSED yang sepadan, melalui saluran AWGN, mungkin terlalu negatif atau pesimis. Untuk menangani masalah ini dalam saluran AWGN, kertas kerja ini membentangkan MNSED gabungan berpecah baharu dan menyediakan kriteria untuk meneroka skim CPM bencana konvensional yang boleh meningkatkan tempoh penggabungan dengan peristiwa tidak berkala gabungan berpecah, dengan berkesan. Sebagai perbandingan, kami menyiasat prestasi kuasa dan lebar jalur yang tepat untuk LRKM dan LRC CPM untuk penghunian lebar jalur yang sama. Keputusan simulasi komputer mengesahkan bahawa penilaian AEP dengan MNSED gabungan berpecah boleh mencapai keuntungan sehingga 3dB berbanding pendekatan konvensional.
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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Salinan
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
Salinan
@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},}
Salinan
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 -