Koichi Ishihara

1.5k total citations
97 papers, 1.1k citations indexed

About

Koichi Ishihara is a scholar working on Electrical and Electronic Engineering, Computer Networks and Communications and Aerospace Engineering. According to data from OpenAlex, Koichi Ishihara has authored 97 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 88 papers in Electrical and Electronic Engineering, 42 papers in Computer Networks and Communications and 6 papers in Aerospace Engineering. Recurrent topics in Koichi Ishihara's work include Optical Network Technologies (40 papers), Advanced Photonic Communication Systems (31 papers) and Wireless Communication Networks Research (24 papers). Koichi Ishihara is often cited by papers focused on Optical Network Technologies (40 papers), Advanced Photonic Communication Systems (31 papers) and Wireless Communication Networks Research (24 papers). Koichi Ishihara collaborates with scholars based in Japan and United States. Koichi Ishihara's co-authors include Takayuki Kobayashi, Riichi Kudo, Y. Miyamoto, A. Sano, H. Masuda, Akihide Sano, Yutaka Miyamoto, Yasushi Takatori, Y. Takatori and Akihiko Matsuura and has published in prestigious journals such as IEEE Transactions on Vehicular Technology, Journal of Lightwave Technology and IEEE Journal of Quantum Electronics.

In The Last Decade

Koichi Ishihara

86 papers receiving 1.0k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koichi Ishihara Japan 16 1.1k 166 150 22 20 97 1.1k
C.R.N. Athaudage Australia 12 835 0.8× 76 0.5× 294 2.0× 33 1.5× 11 0.6× 33 852
Yukiyoshi Kamio Japan 14 572 0.5× 98 0.6× 257 1.7× 40 1.8× 25 1.3× 91 605
A. Adamiecki United States 20 1.2k 1.1× 165 1.0× 78 0.5× 25 1.1× 23 1.1× 58 1.2k
S. Shattil United States 10 386 0.4× 134 0.8× 215 1.4× 11 0.5× 37 1.9× 24 415
Talha Rahman Germany 19 1.1k 1.1× 127 0.8× 83 0.6× 21 1.0× 7 0.3× 83 1.2k
Julian Lucek United Kingdom 12 629 0.6× 297 1.8× 99 0.7× 5 0.2× 7 0.3× 42 675
Dayou Qian United States 28 2.2k 2.0× 343 2.1× 110 0.7× 13 0.6× 34 1.7× 105 2.2k
J.-X. Cai United States 23 1.5k 1.4× 186 1.1× 74 0.5× 13 0.6× 6 0.3× 128 1.5k
Riichi Kudo Japan 12 691 0.6× 86 0.5× 151 1.0× 16 0.7× 67 3.4× 85 714
Fukutaro Hamaoka Japan 17 1.1k 1.0× 191 1.2× 52 0.3× 15 0.7× 11 0.6× 127 1.2k

Countries citing papers authored by Koichi Ishihara

Since Specialization
Citations

This map shows the geographic impact of Koichi Ishihara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koichi Ishihara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichi Ishihara more than expected).

Fields of papers citing papers by Koichi Ishihara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koichi Ishihara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koichi Ishihara. The network helps show where Koichi Ishihara may publish in the future.

Co-authorship network of co-authors of Koichi Ishihara

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Ishihara. A scholar is included among the top collaborators of Koichi Ishihara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koichi Ishihara. Koichi Ishihara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ishihara, Koichi, et al.. (2017). New Trends in Wireless LAN and Cooperative Wireless LAN Technology. NTT technical review. 15(3). 13–19. 1 indexed citations
2.
Nishimori, Kentaro, et al.. (2016). Experimental evaluation on uplink MU-MIMO using high-density distributed antennas selection. International Symposium on Antennas and Propagation.
3.
Ishihara, Koichi, et al.. (2015). Improvement of receiver behavior for dynamic sensitivity control technique in high efficiency wireless LAN. IEICE Technical Report; IEICE Tech. Rep.. 115(206). 155–160.
4.
Ishihara, Koichi, et al.. (2014). Centralized control of carrier sense threshold and channel bandwidth in high-density WLANs. Asia-Pacific Microwave Conference. 570–572. 4 indexed citations
5.
Kimura, Hideaki, Tomoki Murakami, Koichi Ishihara, et al.. (2014). First demonstration of burst-mode upstream transmission for digital coherent OFDM-PON. Australian Conference on Optical Fibre Technology. 925–927. 1 indexed citations
6.
Shibata, N., Tomoki Murakami, Koichi Ishihara, et al.. (2014). 256-QAM 8 wireless signal transmission with DSP-assisted analog RoF for mobile front-haul in LTE-B. Australian Conference on Optical Fibre Technology. 129–131. 15 indexed citations
7.
Ishihara, Koichi, et al.. (2013). Network-controlled Channel Allocation Scheme for IEEE 802.11 Wireless LANs. IEICE Technical Report; IEICE Tech. Rep.. 113(10). 43–47. 1 indexed citations
8.
Murakami, Tomoki, et al.. (2013). Cooperative interference management by beam tilt and power controls in an indoor multi-cell environment. European Conference on Antennas and Propagation. 643–647. 2 indexed citations
9.
Ishihara, Koichi, et al.. (2013). Performance Evaluation of Network-controlled Channel Allocation Scheme for IEEE 802.11 Wireless LANs. IEICE Technical Report; IEICE Tech. Rep.. 113(202). 129–134.
10.
Matsui, M., Riichi Kudo, Y. Takatori, et al.. (2010). A prototype of band-divided receiver for optical wideband signal. 154–155. 1 indexed citations
11.
Kobayashi, Takayuki, A. Sano, H. Masuda, et al.. (2010). 160-Gb/s polarization-multiplexed 16-QAM long-haul transmission over 3,123 km using digital coherent receiver with digital PLL based frequency offset compensator. 3 indexed citations
12.
Kudo, Riichi, Koichi Ishihara, Takayuki Kobayashi, & Yasushi Takatori. (2010). Frequency Domain Equalization Design for Coherent Optical Single Carrier Transmission. NTT technical review. 8(7). 30–39. 1 indexed citations
13.
Kudo, Riichi, Takayuki Kobayashi, Etsushi Yamazaki, et al.. (2009). 111Gb/s No-guard-interval OFDM using low sampling rate analogue-to-digital converter. European Conference on Optical Communication. 1–2. 5 indexed citations
14.
Sano, Akihide, Takayuki Kobayashi, Koichi Ishihara, et al.. (2009). 240-Gb/s polarization-multiplexed 64-QAM modulation and blind detection using PLC-LN hybrid integrated modulator and digital coherent receiver. European Conference on Optical Communication. 1–2. 64 indexed citations
15.
Ishihara, Koichi, et al.. (2009). Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems. IEICE Transactions on Communications. E92-B(5). 1582–1588. 2 indexed citations
16.
Kudo, Riichi, et al.. (2008). PMD compensation in optical coherent single carrier transmission using frequency-domain equalization. IEICE Technical Report; IEICE Tech. Rep.. 108(259). 181–185. 1 indexed citations
17.
Ishihara, Koichi, et al.. (2007). Multiuser detection using an array antenna for asynchronous single carrier systems. IEICE Technical Report; IEICE Tech. Rep.. 106(555). 5–8. 1 indexed citations
18.
Takeda, K., Koichi Ishihara, & Fumiyuki Adachi. (2006). Downlink DS-CDMA Transmission with Joint MMSE Equalization and ICI Cancellation. 4. 1762–1766. 9 indexed citations
19.
Ishihara, Koichi, et al.. (2005). DS-CDMA Frequency-domain Multi-access Interference Canceller. 104(596). 155–160. 1 indexed citations
20.
Ishihara, Koichi, T. Suzuki, Hiroki Yamamoto, & K. Yamada. (1996). 3D Simulation of Shielded-Type Spin-Valve Heads.. Journal of the Magnetics Society of Japan. 20(2). 109–112. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by C.R.N. Athaudage Breakdown of academic impact, for papers by Yukiyoshi Kamio Breakdown of academic impact, for papers by A. Adamiecki Breakdown of academic impact, for papers by S. Shattil Breakdown of academic impact, for papers by Talha Rahman Breakdown of academic impact, for papers by Julian Lucek Breakdown of academic impact, for papers by Dayou Qian Breakdown of academic impact, for papers by J.-X. Cai Breakdown of academic impact, for papers by Riichi Kudo Breakdown of academic impact, for papers by Fukutaro Hamaoka
Rankless by CCL
2026