論文

• Panawit Hanpinitsak, Kentaro Saito, Jun-ichi Takada, Minseok Kim, Lawrence Materum. Multipath Clustering and Cluster Tracking for Geometry-based Stochastic Channel Modeling, IEEE Transactions on Antennas and Propagation, vol. PP, no. 99, pp. 1-1, Sept. 2017.
• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Mobile Station Spatio-Temporal Multipath Clustering of an Estimated Wideband {MIMO} Double-Directional Channel of a Small Urban 4.5 GHz Macrocell, EURASIP Journal on Wireless Communications and Networking, EURASIP, Feb. 2009.
• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. A Comparison of Selected Multipath-Distance Measures in the Clustering of MIMO Propagation Channel Data, EURASIP Journal on Wireless Communications and Networking, vol. 2009, ID 804021, 2009.

国際会議発表 (査読有り)

• Panawit Hanpinitsak, Kentaro Saito, Jun-ichi Takada, Minseok Kim, Lawrence Materum. Clustering method based on scatterer locations for indoor dynamic MIMO channel, 2016 10th European Conference on Antennas and Propagation (EuCAP), pp. 1-4, Apr. 2016.
• Yohei Konishi, Lawrence Materum, ghoraishi m, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Multipath Cluster Polarization Characteristics of a Small Urban MIMO Macrocell, Proceedings of the 7th COST 2100 Management Committee Meeting, COST2100, Feb. 2009.
• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Improved Multipath Clustering of a Small Urban Macrocellular MIMO Environment at 4.5 GHz, International Symposium on Antennas and Propagation (ISAP), Proceedings of the International Symposium on Antennas and Propagation (ISAP), ISAP, pp. 854-857, Oct. 2008.
• Kriangsak Sivasondhivat, Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Experimental Study and Modeling of Channed Parameters at Mobile Station in a Site-Specific Urban Macrocellular Environment, 2007 International Symposium on Antennas and Propagation (ISAP 2007), 2007 International Symposium on Antennas and Propagation (ISAP 2007), pp. 935-938, Aug. 2007.
• Lawrence Materum, Ichirou Ida, Kriangsak Sivasondhivat, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Identification of Relatively Strong Clusters in an NLOS Scenario at a Small Urban-Macrocell Moblie Station, 2007 International Symposium on Antennas and Propagation (ISAP 2007), 2007 International Symposium on Antennas and Propagation (ISAP 2007), pp. 157-160, Aug. 2007.
• Lawrence Materum, Joel Marciano. Wideband Nulling Capability Estimate of a Tapped Delay Line Beamformer, IEEE Topical Conference on Wireless Communication Technology, Proceedings of the IEEE Topical Conference on Wireless Communication Technology, IEEE, pp. 386-387, Oct. 2003.  公式リンク  
  

国内会議発表 (査読有り)

• Yohei Konishi, Lawrence Materum, ghoraishi m, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Polarization Characteristics of a Small Urban MIMO Macrocell, IEICE Technical Report, IEICE, (MW), Mar. 2009.
• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, YASUYUKI OISHI. Bicombinational Approach for Identifying Multipath Clusters at the Mobile Station from a MIMO Double-Directional Data of a 4.5 GHz Macrocell, IEICE Society Conference, Proceedings of the IEICE Society Conference, IEICE, Sept. 2008.
• Lawrence Materum, Kriangsak Sivasondhivat, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Wideband Double-Directional Channel Measurements in a Small-Urban Macrocell at 4.5 GHz, IEICE Technical Report, 106 (AP2006-138), 527, pp. 13-17, Feb. 2007.

国際会議発表 (査読なし・不明)

• Panawit Hanpinitsak, Kentaro Saito, Jun-ichi Takada, Minseok Kim, Lawrence Materum. The Delay, Angular and Polarization Characteristics of Geometry-based Clusters in an Indoor Environment at 11 GHz Band, COST Inclusive Radio Communication Networks for 5G and Beyond (IRACON), Oct. 2016.
• Y. Konishi, L. Materum, J. Takada, I. Ida, Y. Oishi. Experimental Analysis and Modeling of Dual-Polarized MIMO Channel, 2010 Asia-Pacific Radio Science Conference, Sept. 2010.
• Yohei Konishi, Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Polarization Characteristics of MIMO System: Measurement, Modeling and Statistical Validation, Personal, Indoor and Mobile Radio Communications Symposium 2009, Sept. 2009.
• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Polarimetric Beamforming Comparison of the Multipath Clusterization of ML Estimates and the Measurement Data of a MIMO Macrocell Channel, Personal, Indoor and Mobile Radio Communications Symposium 2009, Sept. 2009.

国内会議発表 (査読なし・不明)

• 小西洋平, マテルム ローレンス, 高田潤一, 井田一郎, 大石泰之. マクロセル環境における直交偏波MIMOのための伝搬路特性に関する実験的検討, 電子情報通信学会技術研究報告, Vol. RCS2009-139, Nov. 2009.
• Yohei Konishi, Lawrence Materum, ghoraishi m, Jun-ichi Takada, Ichirou Ida, YASUYUKI OISHI. Polarization Characteristics of a Small Urban MIMO Macrocell, IEICE Technical Report, Vol. MW2008-191, Mar. 2009.

その他の論文・著書など

• Lawrence Materum, Jun-ichi Takada, Ichirou Ida, Yasuyuki Oishi. Clustering results of estimated MIMO double-directional channel data of a small macrocell, IEICE Technical Report, IEICE Technical Report, IEICE, vol. 108 (AP2008-5), no. 5, pp. 23-28, Apr. 2008.

学位論文

• Estimation of the Wideband Interference Nulling Capability of a Linear Equi-spaced Antenna Array Having a Tapped Delay Line Beamformer,  2003/03/26, 
• Estimation of the Wideband Interference Nulling Capability of a Linear Equi-Spaced Antenna Array Having a Tapped Delay Line Beamformer,  Master of Science in Electrical Engineering major in Computers and Communications,  Department of Electrical and Electronics Engineering,  2003/04/--, 

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