World's Best Scientists 2026 revealed!
Mamoru Sawahashi

Mamoru Sawahashi

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Electronics and Electrical Engineering 60 1648 1577 57 53 518 12834

Mamoru Sawahashi publications per year

The chart shows the history of publications by Mamoru Sawahashi between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Mamoru Sawahashi published across 37 years, from 1989 to 2025, averaging 14.9 papers a year. Output peaked at 48 publications in 2009. 13 of the 550 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1989 to 2025. Vertical axis: number of publications, 0 to 48. Peak 48 publications in 2009. 1989: 2 publications 1990: 0 publications 1991: 0 publications 1992: 4 publications 1993: 3 publications 1994: 6 publications 1995: 13 publications 1996: 9 publications 1997: 9 publications 1998: 9 publications 1999: 4 publications 2000: 16 publications 2001: 24 publications 2002: 40 publications 2003: 31 publications 2004: 29 publications 2005: 24 publications 2006: 45 publications 2007: 45 publications 2008: 25 publications 2009: 48 publications 2010: 15 publications 2011: 22 publications 2012: 19 publications 2013: 5 publications 2014: 16 publications 2015: 13 publications 2016: 5 publications 2017: 10 publications 2018: 7 publications 2019: 10 publications 2020: 2 publications 2021: 17 publications 2022: 4 publications 2023: 6 publications 2024: 7 publications 2025: 6 publications
1989 2025

550 publications in total across all disciplines

View publications per year as a table
Mamoru Sawahashi: publications per year, 1989 to 2025
Year Publications
1989 2
1990 0
1991 0
1992 4
1993 3
1994 6
1995 13
1996 9
1997 9
1998 9
1999 4
2000 16
2001 24
2002 40
2003 31
2004 29
2005 24
2006 45
2007 45
2008 25
2009 48
2010 15
2011 22
2012 19
2013 5
2014 16
2015 13
2016 5
2017 10
2018 7
2019 10
2020 2
2021 17
2022 4
2023 6
2024 7
2025 6
Total 550
Download as CSV

Mamoru Sawahashi publication distribution in Electronics and Electrical Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Electronics and Electrical Engineering in 2026. The highlighted bar marks where Mamoru Sawahashi sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 53 bars. Horizontal axis: publications, 34–53 to 1,065+. Vertical axis: number of scientists, 0 to 445. Most scientists, 445, have 174–193 publications. The last bar groups every scientist with 1,065 publications or more. The highlighted bar, 514–533 publications, is where this scientist sits. 34–53 publications: 24 scientists 54–73 publications: 52 scientists 74–93 publications: 114 scientists 94–113 publications: 203 scientists 114–133 publications: 269 scientists 134–153 publications: 355 scientists 154–173 publications: 403 scientists 174–193 publications: 445 scientists 194–213 publications: 430 scientists 214–233 publications: 431 scientists 234–253 publications: 399 scientists 254–273 publications: 366 scientists 274–293 publications: 335 scientists 294–313 publications: 300 scientists 314–333 publications: 276 scientists 334–353 publications: 250 scientists 354–373 publications: 214 scientists 374–393 publications: 187 scientists 394–413 publications: 152 scientists 414–433 publications: 169 scientists 434–453 publications: 147 scientists 454–473 publications: 111 scientists 474–493 publications: 117 scientists 494–513 publications: 103 scientists 514–533 publications: 99 scientists 534–553 publications: 92 scientists 554–573 publications: 75 scientists 574–593 publications: 58 scientists 594–613 publications: 69 scientists 614–633 publications: 50 scientists 634–653 publications: 62 scientists 654–673 publications: 54 scientists 674–693 publications: 44 scientists 694–713 publications: 37 scientists 714–733 publications: 28 scientists 734–753 publications: 26 scientists 754–773 publications: 26 scientists 774–793 publications: 19 scientists 794–813 publications: 23 scientists 814–833 publications: 20 scientists 834–853 publications: 16 scientists 854–873 publications: 20 scientists 874–893 publications: 11 scientists 894–913 publications: 11 scientists 914–933 publications: 16 scientists 934–953 publications: 13 scientists 954–973 publications: 10 scientists 974–993 publications: 11 scientists 994–1,013 publications: 9 scientists 1,014–1,033 publications: 9 scientists 1,034–1,053 publications: 10 scientists 1,054–1,064 publications: 6 scientists 1,065+ publications: 99 scientists
34–53 publications 1,065+

This scientist: 518 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,065 publications or more.

View publications distribution as a table
Number of Electronics and Electrical Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
Publications Scientists This scientist
34–53 24
54–73 52
74–93 114
94–113 203
114–133 269
134–153 355
154–173 403
174–193 445
194–213 430
214–233 431
234–253 399
254–273 366
274–293 335
294–313 300
314–333 276
334–353 250
354–373 214
374–393 187
394–413 152
414–433 169
434–453 147
454–473 111
474–493 117
494–513 103
514–533 99 518
534–553 92
554–573 75
574–593 58
594–613 69
614–633 50
634–653 62
654–673 54
674–693 44
694–713 37
714–733 28
734–753 26
754–773 26
774–793 19
794–813 23
814–833 20
834–853 16
854–873 20
874–893 11
894–913 11
914–933 16
934–953 13
954–973 10
974–993 11
994–1,013 9
1,014–1,033 9
1,034–1,053 10
1,054–1,064 6
1,065+ 99
Download as CSV

Mamoru Sawahashi D-index placement in Electronics and Electrical Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Electronics and Electrical Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Mamoru Sawahashi sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 82 bars. Horizontal axis: D-Index, 30 to 111+. Vertical axis: number of scientists, 0 to 263. Most scientists, 263, have 32 D-Index. The last bar groups every scientist with 111 D-Index or more. The highlighted bar, 60 D-Index, is where this scientist sits. 30 D-Index: 178 scientists 31 D-Index: 257 scientists 32 D-Index: 263 scientists 33 D-Index: 262 scientists 34 D-Index: 244 scientists 35 D-Index: 236 scientists 36 D-Index: 211 scientists 37 D-Index: 220 scientists 38 D-Index: 214 scientists 39 D-Index: 214 scientists 40 D-Index: 205 scientists 41 D-Index: 187 scientists 42 D-Index: 194 scientists 43 D-Index: 201 scientists 44 D-Index: 155 scientists 45 D-Index: 189 scientists 46 D-Index: 148 scientists 47 D-Index: 160 scientists 48 D-Index: 134 scientists 49 D-Index: 130 scientists 50 D-Index: 141 scientists 51 D-Index: 156 scientists 52 D-Index: 108 scientists 53 D-Index: 130 scientists 54 D-Index: 112 scientists 55 D-Index: 97 scientists 56 D-Index: 111 scientists 57 D-Index: 102 scientists 58 D-Index: 108 scientists 59 D-Index: 120 scientists 60 D-Index: 103 scientists 61 D-Index: 93 scientists 62 D-Index: 92 scientists 63 D-Index: 74 scientists 64 D-Index: 77 scientists 65 D-Index: 73 scientists 66 D-Index: 64 scientists 67 D-Index: 69 scientists 68 D-Index: 60 scientists 69 D-Index: 39 scientists 70 D-Index: 57 scientists 71 D-Index: 59 scientists 72 D-Index: 46 scientists 73 D-Index: 49 scientists 74 D-Index: 38 scientists 75 D-Index: 35 scientists 76 D-Index: 32 scientists 77 D-Index: 35 scientists 78 D-Index: 31 scientists 79 D-Index: 22 scientists 80 D-Index: 34 scientists 81 D-Index: 31 scientists 82 D-Index: 34 scientists 83 D-Index: 23 scientists 84 D-Index: 18 scientists 85 D-Index: 30 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 20 scientists 89 D-Index: 8 scientists 90 D-Index: 17 scientists 91 D-Index: 7 scientists 92 D-Index: 14 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 12 scientists 97 D-Index: 10 scientists 98 D-Index: 10 scientists 99 D-Index: 12 scientists 100 D-Index: 16 scientists 101 D-Index: 5 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 8 scientists 105 D-Index: 9 scientists 106 D-Index: 13 scientists 107 D-Index: 4 scientists 108 D-Index: 5 scientists 109 D-Index: 10 scientists 110 D-Index: 8 scientists 111+ D-Index: 96 scientists
30 D-Index 111+

This scientist: 60 D-Index — 77th percentile

77% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 111 D-Index or more.

View D-Index distribution as a table
Number of Electronics and Electrical Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 6,875 ranked scientists.
D-Index Scientists This scientist
30 178
31 257
32 263
33 262
34 244
35 236
36 211
37 220
38 214
39 214
40 205
41 187
42 194
43 201
44 155
45 189
46 148
47 160
48 134
49 130
50 141
51 156
52 108
53 130
54 112
55 97
56 111
57 102
58 108
59 120
60 103 60
61 93
62 92
63 74
64 77
65 73
66 64
67 69
68 60
69 39
70 57
71 59
72 46
73 49
74 38
75 35
76 32
77 35
78 31
79 22
80 34
81 31
82 34
83 23
84 18
85 30
86 19
87 19
88 20
89 8
90 17
91 7
92 14
93 9
94 15
95 10
96 12
97 10
98 10
99 12
100 16
101 5
102 7
103 7
104 8
105 9
106 13
107 4
108 5
109 10
110 8
111+ 96
Download as CSV

Overview

Mamoru Sawahashi is affiliated with Tokyo City University in Japan. Their research focuses primarily on the field of engineering, with particular emphasis on electrical and electronic engineering. They have contributed extensively to topics related to millimeter-wave propagation and modeling, advanced MIMO systems optimization, and advanced wireless communication techniques.

Their work spans several specialized domains within engineering, including:

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Aerospace Engineering
  • Biomedical Engineering
  • Molecular Biology

The main research topics covered by Sawahashi include:

  • Millimeter-Wave Propagation and Modeling
  • Advanced MIMO Systems Optimization
  • Advanced Wireless Communication Techniques
  • Cooperative Communication and Network Coding
  • Antenna Design and Analysis
  • Power Line Communications and Noise
  • PAPR reduction in OFDM

Sawahashi has published numerous papers with a consistent presence in the following venues:

  • IEICE Transactions on Communications
  • 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
  • 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)

Some of their recent published works are:

  • Detection Performance of NR Downlink Initial Access Using Synchronization Signal Block in Millimeter-Wave Bands (2024), published in IEICE Transactions on Communications
  • Comparisons of Physical Cell ID Detection Methods with Carrier Frequency Offset Compensation for Millimeter-Wave Bands (2022), published in 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
  • Physical Cell ID Detection Using Joint Estimation of Frequency Offset and SSS Sequence for NR Initial Access (2021), published in IEICE Transactions on Communications
  • Synchronization Signal Design Using Single-Carrier Waveform for Physical-Layer Cell ID Detection (2021), published in 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)
  • Performance of Circular 32QAM/64QAM Schemes Using Frequency Domain Equalizer for DFT-Precoded OFDM (2021), published in IEICE Transactions on Communications

Mamoru Sawahashi has collaborated frequently with several coauthors throughout their career:

  • Satoshi Nagata
  • Satoshi Suyama
  • Shun Yoneda
  • Takashi Ohiwa
  • Kyogo Ota

Best Publications

  • Wideband DS-CDMA for next-generation mobile communications systems

    F. Adachi;M. Sawahashi;H. Suda;H. Suda

  • Coordinated multipoint transmission/reception techniques for LTE-advanced [Coordinated and Distributed MIMO]

    Mamoru Sawahashi;Yoshihisa Kishiyama;Akihito Morimoto;Daisuke Nishikawa

  • Tree-structured generation of orthogonal spreading codes with different lengths for forward link of DS-CDMA mobile radio

    F. Adachi;M. Sawahashi;K. Okawa

  • Likelihood Function for QRM-MLD Suitable for Soft-Decision Turbo Decoding and Its Performance for OFCDM MIMO Multiplexing in Multipath Fading Channel

    Hiroyuki Kawai;Kenichi Higuchi;Noriyuki Maeda;Mamoru Sawahashi

  • Base station, communication terminal, transmission method, and reception method

    Nobuhiko Miki;Kenichi Higuchi;Mamoru Sawahashi

  • Base station device, user device and method used in mobile communication system

    Yoshihisa Kishiyama;Kenichi Higuchi;Mamoru Sawahashi

  • Variable Spreading Factor-Orthogonal Frequency and Code Division Multiplexing (VSF-OFCDM) for Broadband Packet Wireless Access

    Hiroyuki Atarashi;Sadayuki Abeta;Mamoru Sawahashi

  • Downlink transmission of broadband OFCDM Systems-part I: hybrid detection

    Yiqing Zhou;Jiangzhou Wang;M. Sawahashi

  • Variable Spreading Factor-OFCDM with Two Dimensional Spreading that Prioritizes Time Domain Spreading for Forward Link Broadband Wireless Access

    Noriyuki Maeda;Yoshihisa Kishiyama;Hiroyuki Atarashi;Mamoru Sawahashi

  • Broadband packet wireless access appropriate for high-speed and high-capacity throughput

    H. Atarashi;S. Abeta;M. Sawahashi

  • Adaptive control of surviving symbol replica candidates in QRM-MLD for OFDM MIMO multiplexing

    H. Kawai;K. Higuchi;N. Maeda;M. Sawahashi

  • Receiver, transmitter, communication system, and method of communication

    Noriyuki Maeda;Hiroyuki Atarashi;Sadayuki Abeta;Mamoru Sawahashi

  • Adaptive selection of surviving symbol replica candidates based on maximum reliability in QRM-MLD for OFCDM MIMO multiplexing

    K. Higuchi;H. Kawai;N. Maeda;M. Sawahashi

  • Broadband packet wireless access based on VSF-OFCDM and MC/DS-CDMA

    H. Atarashi;N. Maeda;S. Abeta;M. Sawahashi

  • OFCDM: a promising broadband wireless access technique

    Yiqing Zhou;Tung-Sang Ng;Jiangzhou Wang;K. Higuchi

  • Fast cell search algorithm in DS-CDMA mobile radio using long spreading codes

    K. Higuchi;M. Sawahashi;F. Adachi

  • Cdma demodulating apparatus

    Mamoru Sawahashi;Hidehiro Andou;Yoshinori Miki;Kenichi Higuchi

  • Correlation detector and communication apparatus

    Tomohiro Tomioka-Daiichi-Dokushinryo A Dohi;Mamoru Uraga-Cho Sawahashi;Fumiyuki Takafunedai Kanazawa-Ku Adachi

  • MCI cancellation for multicode wideband CDMA systems

    Jun Chen;Jiangzhou Wang;M. Sawahashi

  • Transmitting apparatus, receiving apparatus, mobile communication system, and transmission control method

    Yoshiaki Ofuji;Hiroyuki Atarashi;Kenichi Higuchi;Mamoru Sawahashi

Frequent Co-Authors

Kenichi Higuchi
Kenichi Higuchi Tokyo University of Science
Fumiyuki Adachi
Fumiyuki Adachi Tohoku University
Jiangzhou Wang
Jiangzhou Wang University of Kent
Xiang-Gen Xia
Xiang-Gen Xia University of Delaware
Ken-ichi Kitayama
Ken-ichi Kitayama Osaka University
Hsiao-Hwa Chen
Hsiao-Hwa Chen National Cheng Kung University
Mohsen Guizani
Mohsen Guizani Mohamed bin Zayed University of Artificial Intelligence
Shinya Tanaka
Shinya Tanaka Hokkaido University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For students pursuing Electronics and Electrical Engineering, exploring flexible online learning options can be a game-changer. Many institutions now offer online colleges with weekly start dates, enabling learners to begin their studies without waiting for traditional semester schedules.

For those looking to quickly enter the workforce or enhance specific skills, 6 month certificate programs that pay well provide targeted education in areas like circuit design, automation, or maintenance, offering rapid professional growth.

Career pathways in electronics and electrical engineering vary, and some roles suit different personality types. For instance, introverted professionals often thrive in research, design, or testing positions. If you identify as an introvert, consider exploring jobs for introverts that pay well within this sector for fulfilling and well-compensated opportunities.

Additionally, combining your technical expertise with management skills can boost career prospects. Programs like the quickest online project management degree help engineers transition into leadership roles more efficiently.

Best Scientists Citing Mamoru Sawahashi

Trending Scientists

Recently Published Articles