Search Results - "Ohseki, T."
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1
Subspace-Based Pilot Decontamination in User-Centric Scalable Cell-Free Wireless Networks
Published in IEEE transactions on wireless communications (01-06-2023)“…We consider a cell-free wireless system operated in Time Division Duplex (TDD) mode with user-centric clusters of remote radio units (RUs). Since the uplink…”
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Journal Article -
2
Inter-vehicle P2P communication experimental on-board terminal
Published in Second IEEE Consumer Communications and Networking Conference, 2005. CCNC. 2005 (2005)“…It is expected that vehicles have on-board terminals to communicate with the fixed network and also with surrounding vehicles in the near future. This paper…”
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Conference Proceeding
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3
Throughput Gain of Fractional Frequency Reuse with Frequency Selective Scheduling in SC-FDMA Uplink Cellular System
Published in 2011 IEEE Vehicular Technology Conference (VTC Fall) (01-09-2011)“…SC-FDMA is a multiple access technique adopted in LTE uplink transmission. SC-FDMA, as well as OFDMA, can improve system throughput by assigning different…”
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Conference Proceeding -
4
Broadcast methods for inter-vehicle communications system
Published in IEEE Wireless Communications and Networking Conference, 2005 (2005)“…This paper presents novel broadcast methods for an inter-vehicle communications system for ITS. During inter-vehicle communications, it is essential that…”
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Conference Proceeding -
5
Proposal for Radio Resource Allocation Using Dummy Burst Definition in IEEE 802.16 Uplinks
Published in 2008 IEEE Wireless Communications and Networking Conference (01-03-2008)“…In IEEE 802.16 uplinks, the permutation of data on a frequency domain is performed when logical subchannels are transformed to physical subchannels to scatter…”
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Conference Proceeding -
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Burst Construction and Packet Mapping Scheme for OFDMA Downlinks in IEEE 802.16 Systems
Published in IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference (01-11-2007)“…In this paper, we propose a burst construction and packet mapping scheme in the orthogonal frequency-division multiple access (OFDMA) downlinks of IEEE 802.16…”
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Conference Proceeding -
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Multihop mobile communications system using MC-CDMA in forward links
Published in IEEE Wireless Communications and Networking Conference, 2005 (2005)“…This paper proposes a multihop mobile communications system using an MC-CDMA transmission technique in the forward links. In the system, it is assumed…”
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Conference Proceeding -
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High speed wireless access system using 4.9 GHz band
Published in Proceedings IEEE 56th Vehicular Technology Conference (2002)“…At present, wireless access systems in the 5 GHz band, specified by the MMAC-PC (Multimedia Mobile Access Communication systems Promotion Council), are…”
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Conference Proceeding -
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Simple Implementation of QoS Wireless Packet Scheduling in IEEE 802.16 Systems
Published in 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications (01-09-2007)“…In this paper, we propose a Quality of Service (QoS) packet scheduling algorithm for the IEEE 802.16 system and evaluate the algorithm on hardware. The…”
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Conference Proceeding -
10
Throughput of cooperative MIMO communications with FFR
Published in TENCON 2009 - 2009 IEEE Region 10 Conference (01-11-2009)“…Cooperative MIMO is a key technology for next generation mobile communications. This technique is used to improve cell edge throughput performance. In this…”
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Conference Proceeding -
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Multihop Mobile Communications System Adopting Fixed Relay Stations and its Time Slot Allocation Schemes
Published in 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications (01-09-2006)“…In this paper, we present a multihop mobile communications system utilizing fixed relay stations to enhance the coverage of the service area. A multihop mobile…”
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Conference Proceeding -
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Performance analysis of adaptive downlink modulation using OFDM and MC-CDMA for future mobile communications system
Published in Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat. No.04TH8738) (2004)“…To meet the strong demand for broadband multimedia services by both nomadic and mobile users, it is important to increase the bit rate of future mobile…”
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Conference Proceeding -
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On symbol timing for OFDM based mobile communications systems
Published in Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE (2002)“…This paper deals with symbol timing synchronization issue for broadband OFDM based mobile communication system. A symbol timing approach using adaptive…”
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Conference Proceeding -
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Frame timing detection by an MMSE adaptive array for multipath OFDM signals
Published in The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (2002)“…A timing detection scheme for multipath signals is proposed for wireless OFDM systems. The multipath signal timings are obtained in the process of suppressing…”
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Conference Proceeding