News

Z. Hong, S. Sugiura, C. Xu, and L. Hanzo, "Precoded faster-than-Nyquist signaling using optimal power allocation for OTFS," IEEE Wireless Communications Letters, in press.

K. Nagaya and S. Sugiura, "Reduced-complexity intelligent reflecting surface optimization for single-carrier transmission in frequency-selective fading channel," IEEE Wireless Communications Letters, in press.

H. Takeshita, A. A. Fathnan, D. Nita, A. Nagata, S. Sugiura, and H. Wakatsuchi*, "Frequency-hopping wave engineering with metasurfaces," Nature Communications, vol. 15, Jan. 2024, Art. no. 196. (*Corresponding author: Prof. H. Wakatsuchi)

次世代のためのASPIRE, 次世代ワイヤレス通信のための高周波数帯伝搬路環境の知的統合制御フレームワーク構築, 2023～2026年度.

J. Ino, H. Wakatsuchi, and S. Sugiura, "Noncoherent reconfigurable intelligent surface with differential modulation and reflection pattern training," IEEE Wireless Communications Letters, in press.

Y. Matsuzaki, S. Kojima, and S. Sugiura, "Deep-learning-based physical-layer lightweight authentication in frequency-division duplex channel," IEEE Communications Letters, in press.

P. Chaki and S. Sugiura, "Capacity and outage probability analysis of faster-than-Nyquist cooperative NOMA," IEEE Wireless Communications Letters, in press.

P. Chaki, T. Ishihara, and S. Sugiura, "Precoded filterbank multicarrier index modulation with non-orthogonal subcarrier spacing," IEEE Transactions on Communications, in press.

J. Zhou, T. Ishihara, and S. Sugiura, "Precoded faster-than-Nyquist signaling for doubly selective underwater acoustic communication channel," IEEE Wireless Communications Letters, in press.

G. Srirutchataboon and S. Sugiura, "Secrecy performance of buffer-aided hybrid virtual full-duplex and half-duplex relay activation," IEEE Open Journal of Vehicular Technology, in press.

Y. Kawai and S. Sugiura, "QoS-constrained energy-efficient beamforming and jamming with intelligent reflecting surface for secure multi-user downlink," IEEE Transactions on Green Communications and Networking, in press.

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G. Srirutchataboon, J. Kochi, and S. Sugiura, "Performance analysis of hybrid buffer-aided cooperative protocol based on half-duplex and virtual full-duplex relay selections," IEEE Open Journal of the Communications Society, in press.

Y. Kawai and S. Sugiura, "QoS-constrained optimization of intelligent reflecting surface aided secure energy-efficient transmission," IEEE Transactions on Vehicular Technology, in press.

S. Sugiura, Y. Kawai, T. Matsui, T. Lee, and H. Iizuka, "Joint beam and polarization forming of intelligent reflecting surfaces for wireless communications," IEEE Transactions on Vehicular Technology, in press.

J. Kochi, R. Nakai, and S. Sugiura, "Hybrid NOMA/OMA broadcasting-and-buffer-state-based relay selection," IEEE Transactions on Vehicular Technology, in press.

K. Masaki, T. Ishihara, and S. Sugiura, "Tradeoff between calculation precision and information rate in eigendecomposition-based faster-than-Nyquist signaling," IEEE Access, in press.

- K. Masaki, T. Ishihara, and S. Sugiura, "Effects of eigenvalue distribution on precoded faster-than-Nyquist signaling with power allocation," in IEEE 92nd Vehicular Technology Conference, Virtual Conference, 18 Nov.-16 Dec. 2020.

- S. Osaki, T. Ishihara, and S. Sugiura, "Non-orthogonal frequency-division multiplexing based on eigenvalue decomposition," in IEEE 92nd Vehicular Technology Conference, Virtual Conference, 18 Nov.-16 Dec. 2020.

Y. Akiba, T. Ishihara, and S. Sugiura, "Variable-block-length joint channel estimation and data detection for spatial modulation over time-varying channels," IEEE Transactions on Vehicular Technology, in press.

S. Osaki, T. Ishihara, Nakai, and S. Sugiura, "Eigenvalue-decomposition-precoded ultra-dense non-orthogonal frequency-division multiplexing," IEEE Transactions on Wireless Communications, in press.

受賞論文： R. Nakai and S. Sugiura, "Physical layer security in buffer-state-based max-ratio relay selection exploiting broadcasting with cooperative beamforming and jamming," IEEE Transactions on Information Forensics and Security, vol. 14, no. 2, pp. 431-444, Feb. 2019.

受賞論文： R. Nakai and S. Sugiura, "Physical layer security in buffer-state-based max-ratio relay selection exploiting broadcasting with cooperative beamforming and jamming," IEEE Transactions on Information Forensics and Security, vol. 14, no. 2, pp. 431-444, Feb. 2019.

J. Kochi, R. Nakai, and S. Sugiura, "Performance Evaluation of Generalized Buffer-State-Based Relay Selection in NOMA-Aided Downlink," IEEE Access, in press.

T. Ishihara and S. Sugiura, "Optimal and suboptimal power allocation for SVD-precoded faster-than-Nyquist signaling," in IEEE 90th Vehicular Technology Conference, Honolulu, Hawaii, USA, 22-25 Sep. 2019.

T. Mishina, M. Oiwa, R. Nakai, and S. Sugiura, "Buffer-aided virtual full-duplex cooperative networks exploiting source-to-relay broadcast channels," in IEEE 90th Vehicular Technology Conference, Honolulu, Hawaii, USA, 22-25 Sep. 2019.

JST さきがけ（IoTが拓く未来）：「IoTワイヤレスネットワークセキュリティ」, 2019～2022年度.

T. Ishihara and S. Sugiura, "SVD-precoded faster-than-Nyquist signaling with optimal and truncated power allocation," IEEE Transactions on Wireless Communications, in press.

受賞業績： 次世代ワイヤレス通信ネットワークのためのディジタル信号処理・符号技術に関する研究開発

S. Osaki, M. Nakao, T. Ishihara, and S. Sugiura, "Differentially modulated spectrally efficient frequency-division multiplexing," IEEE Signal Processing Letters, in press.

受賞論文： T. Ishihara and S. Sugiura, "Iterative frequency-domain joint channel estimation and data detection of faster-than-Nyquist signaling," IEEE Transactions on Wireless Communications, vol. 16, no. 9, pp. 6221-6231, Sept. 2017.

杉浦慎哉, "英国サウサンプトン大学でのPh.D.取得に関わる体験記," 電子情報通信学会誌, vol.102, no.2, pp.162-164, 2019年2月

C. Sagayama, T. Ishihara, and S. Sugiura, "Performance analysis and constellation optimization of star-QAM-aided differential faster-than-Nyquist signaling," IEEE Signal Processing Letters, in press.

M. Nakao and S. Sugiura, "Spectrally efficient frequency division multiplexing with index-modulated non-orthogonal subcarriers," IEEE Wireless Communications Letters, in press.

M. Arisaka and S. Sugiura, "Energy-versus-bandwidth-efficiency tradeoff in spatially modulated massive MIMO downlink," IEEE Wireless Communications Letters, in press.

T. Tran, S. Sugiura, and K. Lee "Ordering- and partitioning-aided sphere decoding for generalized spatial modulation," IEEE Transactions on Vehicular Technology, in press.

R. Nakai and S. Sugiura, "Physical layer security in buffer-state-based max-ratio relay selection exploiting broadcasting with cooperative beamforming and jamming," IEEE Transactions on Information Forensics and Security, in press.

T. Nguyen, S. Sugiura, and K. Lee "Low-complexity sphere search-based adaptive spatial modulation," IEEE Transactions on Vehicular Technology, 2018, in press.

受賞論文： T. Ishihara and S. Sugiura, "Iterative frequency-domain joint channel estimation and data detection of faster-than-Nyquist signaling," IEEE Transactions on Wireless Communications, vol. 16, no. 9, pp. 6221-6231, Sept. 2017.

受賞論文： N. Ishikawa and S. Sugiura, "Rectangular differential spatial modulation for open-loop noncoherent massive-MIMO downlink," IEEE Transactions on Wireless Communications, vol. 16, no. 3, pp. 1908-1920, Mar. 2017.

T. Ishihara and S. Sugiura, "Differential faster-than-Nyquist signaling," IEEE Access, 2018, in press.

M. Nakao, T. Ishihara, and S. Sugiura, "Dual-mode time-domain index modulation for Nyquist-criterion and faster-than-Nyquist single-carrier transmissions," IEEE Access, 2017, in press.

C. Xu, R. Rajashekar, N. Ishikawa, S. Sugiura, and L. Hanzo, "Single-RF index shift keying aided differential space-time block coding," IEEE Transactions on Signal Processing, 2018, in press.

S. Sugiura, T. Ishihara, and M. Nakao, "State-of-the-art design of index modulation in the space, time, and frequency domains: Benefits and fundamental limitations," IEEE Access, 2017, in press.

R. Nakai, M. Oiwa, K. Lee, and S. Sugiura, "Generalized buffer-state-based relay selection with collaborative beamforming," IEEE Transactions on Vehicular Technology, 2017, in press.

M. Oiwa, R. Nakai, and S. Sugiura, "Buffer-state-and-thresholding-based amplify-and-forward cooperative networks," IEEE Wireless Communications Letters, 2017, in press.

科学研究費助成事業 国際共同研究加速基金（国際共同研究強化） 高速レートかつ低オーバヘッドを実現する非同期大規模アレイ伝送方式の開発

T. Ishihara and S. Sugiura, "Faster-than-Nyquist signaling with index modulation," IEEE Wireless Communications Letters, 2017, in press.

挑戦的研究（萌芽）：「ナイキスト基準の限界を超える高速無線伝送のための送信信号設計指針の確立」

R. Rajashekar, C. Xu, N. Ishikawa, S. Sugiura, K. V. S. Hari, and L. Hanzo, "Algebraic differential spatial modulation is capable of approaching the performance of its coherent counterpart," IEEE Transactions on Communications, 2017, in press.

The 2nd TUAT-SeoulTech Joint Workshop on High-Rate Energy-Efficient Wireless Communication Systems, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 21 June 2017.

T. Ishihara and S. Sugiura, "Iterative frequency-domain joint channel estimation and data detection of faster-than-Nyquist signaling," IEEE Transactions on Wireless Communications, 2017, in press.

C. Xu, S. Sugiura, S. X. Ng, P. Zhang, L. Wang, and L. Hanzo "Two decades of MIMO design tradeoffs and reduced-complexity MIMO detection in near-capacity systems," IEEE Access, 2017, in press.

基盤研究（Ｂ）：「中継端末にバッファを用いた無線分散ネットワークの高信頼かつ低遅延プロトコル」

国際共同研究加速基金(国際共同研究強化)：「高速レートかつ低オーバヘッドを実現する非同期大規模アレイ伝送方式の開発」

N. Ishikawa and S. Sugiura, "Rectangular differential spatial modulation for open-loop noncoherent massive-MIMO downlink," IEEE Transactions on Wireless Communications, 2017, in press.

M. Nakao, T. Ishihara, and S. Sugiura, "Single-carrier frequency-domain equalization with index modulation," IEEE Communications Letters, 2017, in press.

S. Sugiura and H. Iizuka, "Element-by-element full-rank optical wireless MIMO systems using narrow-window angular filter designed based on one-dimensional photonic crystal," Journal of Lightwave Technology, 2017, in press.

The 1st TUAT-SeoulTech Joint Workshop on High-Rate Energy-Efficient Wireless Communication Systems, SeoulTech, Seoul, Korea, 9 Aug. 2016.

H. Iizuka, N. Engheta, and S. Sugiura, "Extremely small wavevector regime in a one-dimensional photonic crystal heterostructure for angular transmission filtering," Optics Letters, 2016, in press.

M. Oiwa and S. Sugiura, "Reduced-packet-delay generalized buffer-aided relaying protocol: Simultaneous activation of multiple source-to-relay links," IEEE Access, 2016, in press.

N. Ishikawa, S. Sugiura, and L. Hanzo, "Subcarrier-index modulation aided OFDM - Will it work?" IEEE Access, in press.

N. Ishikawa, R. Rajashekar, S. Sugiura, and L. Hanzo, "Generalized spatial modulation based reduced-RF-chain millimeter-wave communications," IEEE Transactions on Vehicular Technology, in press.

R. Rajashekar, N. Ishikawa, S. Sugiura, K. V. S. Hari, and L. Hanzo, “Full-diversity dispersion matrices from algebraic field extensions for differential spatial modulation,” IEEE Transactions on Vehicular Technology, 2016, in press.

P. Yang et al., "Single-carrier spatial modulation: A promising design for large-scale broadband antenna systems," IEEE Communications Surveys and Tutorials, 2016, in press.

採択テーマ：「大規模アンテナと基地局連携を利用した次世代高速・高効率無線通信方式に関する研究」

M. Oiwa, C. Tosa, and S. Sugiura, "Theoretical analysis of hybrid buffer-aided cooperative protocol based on max-max and max-link relay selections," IEEE Transactions on Vehicular Technology, 2016, in press.

M. I. Kadir, S. Sugiura, S. Chen, and L. Hanzo, “Unified MIMO-multicarrier designs: A space-time shift keying approach,” IEEE Communications Surveys & Tutorials, 2015, in press.

S. Sugiura and L. Hanzo, “Single-RF spatial modulation requires single-carrier transmission: Frequency-domain turbo equalization for dispersive channels,” IEEE Transactions on Vehicular Technology, 2015, in press.

S. Sugiura and H. Iizuka, “Deep-subwavelength MIMO using graphene-based nanoscale communication channel,” IEEE Access, 2014, in press.

S. Sugiura and L. Hanzo, “Frequency-domain equalization aided iterative detection of faster-than-Nyquist signalling,” IEEE Transactions on Vehicular Technology, 2014, in press.

① 若手研究（Ａ）：「集中／分散ネットワークに適した大規模アレイ伝送方式に関する研究」
② 挑戦的萌芽研究：「ナイキスト基準の限界を超える高速無線伝送を実現する低演算受信機の開発」

K. Ishibashi and S. Sugiura, "Effects of antenna switching on band-limited spatial modulation," IEEE Wireless Communications Letters, 2014, in press.

N. Ishikawa and S. Sugiura, "Unified differential spatial modulation," IEEE Wireless Communications Letters, 2014, in press.

2013 Exemplary Reviewer of IEEE Communications Letters - 全査読者の3%を上限として査読活動を表彰

S. Sugiura, "Coherent versus non-coherent reconfigurable antenna aided virtual MIMO systems," IEEE Signal Processing Letters, vol. 21, 2014, in press.

M. Di Renzo, H. Haas, A. Ghrayeb, S. Sugiura and L. Hanzo, "Spatial modulation for generalized MIMO: Challenges, opportunities and implementation," Proceedings of the IEEE, 2014, in press.

K. Sasaki, S. Sugiura, and H. Iizuka, "Distance adaptation method for magnetic resonance coupling between variable capacitor-loaded parallel-wire coils," IEEE Transactions on Microwave Theory and Techniques, Special Issue on Wireless Power Transfer, vol. 62, 2014, in press.

採択課題：「即応・高信頼性の非直交ワイヤレスリソース共用技術の研究開発」

採択課題：「ナイキストレートを超える高速情報伝送技術の研究開発」

S. Sugiura, "Frequency-domain equalization of faster-than-Nyquist signaling," IEEE Wireless Communications Letters, 2013, in press.

受賞業績：「無線通信システムのためのディジタル信号処理・符号技術に関する研究」

受賞業績：「次世代無線通信ネットワークのためのディジタル信号処理・符号技術に関する研究」

受賞論文: S. Sugiura, S. Chen, and L. Hanzo, “A universal space-time architecture for multiple-antenna aided systems,” IEEE Communications Surveys and Tutorials, vol. 14, no. 2, pp. 401-420, Second Quarter 2012.

K. Sasaki, S. Sugiura, S. Makido, and N. Suzuki, “Bloom-filter aided two-layered structured overlay for highly dynamic distributed storage,” IEEE Communications Letters, 2013, in press.

S. Sugiura and H. Iizuka, “Cylindrical high impedance surface aided horizontally polarised omnidirectional antenna,” Electronics Letters, 2013, in press.

2012 Exemplary Reviewer of IEEE Communications Letters - 全査読者の3%を上限として査読活動を表彰