Keyword : W-CDMA


Radio Access Technologies for Broadband Mobile Communications
Mamoru SAWAHASHI Kenichi HIGUCHI 
Publication:   
Publication Date: 2017/09/01
Vol. E100-B  No. 9 ; pp. 1674-1687
Type of Manuscript:  INVITED PAPER (Special Issue the Past, Present, and Future of Communications Technologies in the IEICE)
Category: Wireless Communication Technologies
Keyword: 
W-CDMAHSDPAHSUPALTELTE-Advancedmulti-access schemeradio access technologies
 Summary | Full Text:PDF(2.1MB)

Cell Search Synchronization under the Presence of Timing and Frequency Offsets in W-CDMA
Wisam K. HUSSAIN Loay D. KHALAF Mohammed HAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/04/01
Vol. E96-B  No. 4 ; pp. 1012-1018
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cell searchW-CDMAsynchronizationclock driftfrequency offset estimationtime offset estimation
 Summary | Full Text:PDF(906.3KB)

A Single-Chip 8-Band CMOS Transceiver for 3G Cellular Systems with Digital Interface
Hiroshi YOSHIDA Takehiko TOYODA Hiroshi TSURUMI Nobuyuki ITOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/02/01
Vol. E93-A  No. 2 ; pp. 375-381
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
W-CDMAGSM3Gdirect conversionDC offsetAGC
 Summary | Full Text:PDF(1.1MB)

A Novel Filter Dependent CFR Scheme with Waterfilling Based Code Domain Compensation
Hyung Min CHANG Won Cheol LEE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1 ; pp. 243-253
Type of Manuscript:  PAPER
Category: Digital Signal Processing
Keyword: 
W-CDMAcrest factor reductionpeak-to-average ratiocode domain compensation
 Summary | Full Text:PDF(962.6KB)

Performance Evaluation of an Advanced DWDM RoFSO System for Transmitting Multiple RF Signals
Abdelmoula BEKKALI Pham Tien DAT Kamugisha KAZAURA Kazuhiko WAKAMORI Mitsuji MATSUMOTO Takeshi HIGASHINO Katsutoshi TSUKAMOTO Shozo KOMAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11 ; pp. 2697-2705
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
Radio on Free Space Optics (RoFSO)Radio over Fiber (RoF)W-CDMAISDB-TWLAN
 Summary | Full Text:PDF(1.6MB)

Thermal Gain Variation Compensation Technique Using Thermistor on HPA Module for W-CDMA System
Akira KURIYAMA Shigehiro YUYAMA Masami OHNISHI Hidetoshi MATSUMOTO Tomonori TANOUE Isao OHBU Fuminori MORISAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/12/01
Vol. E91-C  No. 12 ; pp. 1933-1940
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
high-power amplifier modulethermistorthermal gain variationlinearityW-CDMA
 Summary | Full Text:PDF(782.9KB)

Combined CAC Scheme Supporting Multiple Services with 3G W-CDMA DownLink Power Allocation
Jeong-Ho KIM Joo-Young YANG MinYoung CHUNG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Vol. E90-B  No. 5 ; pp. 1278-1282
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
CACmultiple servicesW-CDMA
 Summary | Full Text:PDF(180.5KB)

High Power GaN-FET Amplifier with Reduced Memory Effects for W-CDMA Base Stations
Akio WAKEJIMA Kohji MATSUNAGA Yuji ANDO Tatsuo NAKAYAMA Yasuhiro OKAMOTO Kazuki OTA Naotaka KURODA Masahiro TANOMURA Hironobu MIYAMOTO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/05/01
Vol. E90-C  No. 5 ; pp. 929-936
Type of Manuscript:  Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)
Category: Compound Semiconductor and Power Devices
Keyword: 
GaN-FETamplifiermemory effectsbaseband impedancedigital predistortionW-CDMA
 Summary | Full Text:PDF(688.2KB)

A 4-mm-Square Miniaturized Doherty Power Amplifier Module for W-CDMA Mobile Terminals
Takayuki KATO Keiichi YAMAGUCHI Yasuhiko KURIYAMA Hiroshi YOSHIDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/02/01
Vol. E90-A  No. 2 ; pp. 310-316
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
Doherty amplifierPA moduleW-CDMAmobile terminalGaAs MMIC
 Summary | Full Text:PDF(1.2MB)

High Efficiency Open Collector Adaptive Bias SiGe HBT Differential Power Amplifier
Kuei-Cheng LIN Tsung-Yu YANG Kuan-Yu CHEN Hwann-Kaeo CHIOU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/11/01
Vol. E89-C  No. 11 ; pp. 1704-1707
Type of Manuscript:  LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
open collector linearizerSiGe HBTadaptive bias amplifierW-CDMA
 Summary | Full Text:PDF(655KB)

High Power GaN-HEMT for Wireless Base Station Applications
Toshihide KIKKAWA Kazukiyo JOSHIN 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/05/01
Vol. E89-C  No. 5 ; pp. 608-615
Type of Manuscript:  Special Section PAPER (Special Section on Fundamental and Application of Advanced Semiconductor Devices)
Category: Compound Semiconductor Devices
Keyword: 
GaNHEMTbase stationamplifierW-CDMA
 Summary | Full Text:PDF(1.6MB)

A CMOS Dual-Mode RF Front-End Receiver for GSM and WCDMA Applications
Chun-Lin KO Ming-Ching KUO Chien-Nan KUO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/06/01
Vol. E88-C  No. 6 ; pp. 1218-1224
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
Category: RF
Keyword: 
CMOS RF receiverdual-modeGSMW-CDMA
 Summary | Full Text:PDF(829.1KB)

A Direct Conversion Receiver for W-CDMA Reducing Current Consumption to 31 mA
Hiroshi YOSHIDA Takehiko TOYODA Makoto ARAI Ryuichi FUJIMOTO Toshiya MITOMO Masato ISHII Rui ITO Tadashi ARAI Tetsuro ITAKURA Hiroshi TSURUMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/06/01
Vol. E88-C  No. 6 ; pp. 1271-1274
Type of Manuscript:  Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: RF
Keyword: 
direct conversionpower consumptionW-CDMA
 Summary | Full Text:PDF(607.4KB)

A Temperature and Supply Independent Bias Circuit and MMIC Power Amplifier Implementation for W-CDMA Applications
Youn Sub NOH Jong Heung PARK Chul Soon PARK 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/04/01
Vol. E88-C  No. 4 ; pp. 725-728
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
power amplifierheterojunction bipolar transistor (HBT)MMICW-CDMAtemperaturesupplybias circuit
 Summary | Full Text:PDF(353.7KB)

A 0.9 V 1.5 mW Continuous-Time ΔΣ Modulator for W-CDMA
Takeshi UENO Tetsuro ITAKURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/02/01
Vol. E88-A  No. 2 ; pp. 461-468
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
continuous-time ΔΣOTAlow-voltageW-CDMA
 Summary | Full Text:PDF(754.2KB)

Blocking Probability Calculation Using Traffic Equivalent Distributions in SIR-Based Power Controlled W-CDMA Cellular Systems
Yoshihiro ISHIKAWA Seizo ONOE Kazuhiko FUKAWA Hiroshi SUZUKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1 ; pp. 312-324
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
W-CDMAtraffic equivalentSIR-based power controluplinkdownlink
 Summary | Full Text:PDF(1.3MB)

Inner-Chip-Interference Cancellation Using Rake Receiver with Wiener Filter
Tsung-ting TSAI Soichi WATANABE Yung-Liang HUANG Takuro SATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/11/01
Vol. E87-B  No. 11 ; pp. 3295-3302
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
W-CDMAWiener filterindoor interference cancellation
 Summary | Full Text:PDF(524.9KB)

Implementation of SDR-Based Digital IF for Multi-Band W-CDMA Transceiver
Won-Cheol LEE Woon-Yong PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/10/01
Vol. E87-B  No. 10 ; pp. 2980-2990
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
software defined radioW-CDMAdigital IFdigital up/down conversiondigital channelizer
 Summary | Full Text:PDF(1.4MB)

MMIC Power Amplifier with on Chip Adaptive Predistortion Function for W-CDMA Mobile Terminals
Joon Hyung KIM Ji Hoon KIM Youn Sub NOH Chul Soon PARK 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/07/01
Vol. E87-C  No. 7 ; pp. 1192-1196
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
power amplifierlinearizerW-CDMAheterojunction bipolar transistor (HBT)MMIC
 Summary | Full Text:PDF(512.1KB)

Performance Evaluation of Channel Switching Scheme for Packet Data Transmission in Radio Network Controller
Yoshiaki OHTA Kenji KAWAHARA Takeshi IKENAGA Yuji OIE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/05/01
Vol. E87-B  No. 5 ; pp. 1141-1150
Type of Manuscript:  Special Section PAPER (Special Section on Mobile Multimedia Communications)
Category: Mobile Radio
Keyword: 
IMT-2000W-CDMARNCdedicated channelcommon channel
 Summary | Full Text:PDF(776.3KB)

Influence of Frequency Characteristics of RF Circuits in Digital Predistortion Type Linearizer System on Adjacent Channel Leakage Ratio for W-CDMA Power Amplifier
Takeshi TAKANO Toru MANIWA Yasuyuki OISHI Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/02/01
Vol. E87-A  No. 2 ; pp. 324-329
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
digital predistortionlinearizerW-CDMApower amplifierACLR
 Summary | Full Text:PDF(1006.5KB)

Influence of Chip Frequency on Characterizing Radio Channels for Rake Receiver Fingers for CDMA Systems in Microcellular Environment
Hassan M. EL-SALLABI Pertti VAINIKAINEN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/10/01
Vol. E86-A  No. 10 ; pp. 2492-2500
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Communication Systems
Keyword: 
RakefingersbandwidthW-CDMA
 Summary | Full Text:PDF(1.8MB)

Demonstration of Radio on Fiber Transmission Using Wide Dynamic Range Scheme for IMT-2000 Cellular Systems
Hiroyuki SASAI Susumu MORIKURA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/07/01
Vol. E86-C  No. 7 ; pp. 1153-1158
Type of Manuscript:  Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)
Category: Photonic Links for Wireless Communications
Keyword: 
IMT-2000dynamic rangeIF bandradio on fiber (ROF)W-CDMA
 Summary | Full Text:PDF(815KB)

Experimental Evaluation of Coherent Adaptive Antenna Array Diversity Receiver Employing Optical Fiber Interface in IF Stage
Taisuke IHARA Hidekazu TAOKA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/07/01
Vol. E86-A  No. 7 ; pp. 1676-1688
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
optical fiber feederadaptive antenna arrayinterference suppressionW-CDMA
 Summary | Full Text:PDF(2.2MB)

Performance Analysis of Channel Estimators for Forward Link W-CDMA under Multipath Rayleigh Fading Channels
Seok-Jun KO Hyung-Jin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/04/01
Vol. E86-B  No. 4 ; pp. 1212-1223
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
coherent forward linkW-CDMARayleigh fadingmaximum likelihood estimatorWiener filter
 Summary | Full Text:PDF(874.9KB)

Performance Evaluation of Smart Antenna for Third-Generation W-CDMA Systems
Shiann-Shiun JENG Chia-Yuan HUANG Chih-Yang LAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2 ; pp. 818-828
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
smart antennaW-CDMAmobile communicationsthird generation system
 Summary | Full Text:PDF(817.2KB)

Selective Multi-Threshold Technique for High-Performance and Low-Standby Applications
Kimiyoshi USAMI Naoyuki KAWABE Masayuki KOIZUMI Katsuhiro SETA Toshiyuki FURUSAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/12/01
Vol. E85-A  No. 12 ; pp. 2667-2673
Type of Manuscript:  Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category: Optimization of Power and Timing
Keyword: 
high performancelow standby leakagemulti-thresholdMTCMOSW-CDMA
 Summary | Full Text:PDF(511.4KB)

W-CDMA Downlink Transmit Power and Cell Coverage Planning
Yoshihiro ISHIKAWA Takahiro HAYASHI Seizo ONOE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11 ; pp. 2416-2426
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
W-CDMAdownlinktransmit powercommon pilotcommon controlgeometry
 Summary | Full Text:PDF(1.3MB)

A Unified View of RAKE Reception and Its Application on Receiver Designs for Multimedia Capable Mobile Terminals in W-CDMA
Sukvasant TANTIKOVIT Muzhong WANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10 ; pp. 1944-1956
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
W-CDMARAKE receiverantenna arraydiversity
 Summary | Full Text:PDF(760.2KB)

Accuracy Evaluation of Mobile Terminal Positioning Using Broadband Cellular System
Arata INABA Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10 ; pp. 2068-2075
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
W-CDMApath-searchOFDMcorrelation
 Summary | Full Text:PDF(1.1MB)

On the Effect of Forward-Backward Filtering Channel Estimation in W-CDMA Multi-Stage Parallel Interference Cancellation Receiver
Masayuki ARIYOSHI Tetsufumi SHIMA Jeonghoon HAN Jonas KARLSSON Kenzo URABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/10/01
Vol. E85-B  No. 10 ; pp. 1898-1905
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Multimedia Communications)
Category: 
Keyword: 
channel estimationforward-backward filteringinterference cancellerIMT-2000W-CDMA
 Summary | Full Text:PDF(930.2KB)

Evaluation of Optimum Adaptive Antenna Array Beam Forming Configuration Considering Diversity Effect in W-CDMA Forward Link
Satoru FUKUMOTO Taisuke IHARA Mamoru SAWAHASHI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7 ; pp. 1594-1603
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
W-CDMAadaptive antenna array beam formingtransmit diversityfast transmission power controlmobile radio
 Summary | Full Text:PDF(1.4MB)

Multipath Interference Canceller for Orthogonal Code-Multiplexed Channels and Its Performance in W-CDMA Forward Link
Akhmad Unggul PRIANTORO Heiichi YAMAMOTO Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7 ; pp. 1524-1535
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
W-CDMAforward linkorthogonal variable spreading factormultipath interference canceller
 Summary | Full Text:PDF(2.1MB)

A W-CDMA Baseband Modem LSI with Multi-Engine Architecture
May SUZUKI Manabu KAWABE Takashi YANO Junko KIYOTA Hirotake ISHII Tsuyoshi TAMAKI Nobukazu DOI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/02/01
Vol. E85-C  No. 2 ; pp. 352-358
Type of Manuscript:  Special Section PAPER (Special Issue on High-Performance and Low-Power Microprocessors)
Category: Product Designs
Keyword: 
baseband modemW-CDMAenginedistributed processing
 Summary | Full Text:PDF(1.3MB)

Performance Evaluation of Base Station Antenna Arrays Using Common Correlation Matrix for W-CDMA System under Multipath Fading Environment
Duk-Kyu PARK Yoshitaka HARA Yukiyoshi KAMIO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12 ; pp. 3026-3034
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
adaptive arraycorrelation matrixmultipath Rayleigh fading environmentW-CDMA
 Summary | Full Text:PDF(1.2MB)

Experiments on Parallel-Type Coherent Multistage Interference Canceller with Iterative Channel Estimation for W-CDMA Mobile Radio
Yoshihisa KISHIYAMA Koichi OKAWA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12 ; pp. 3000-3011
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
mobile radioW-CDMAparallel-type coherent multistage interference cancelleriterative channel estimationdecision-feedback data symbol
 Summary | Full Text:PDF(2.1MB)

On Optimum Combining for Forward-Link W-CDMA in the Presence of Interpath Interference
Sukvasant TANTIKOVIT Muzhong WANG Asrar U. H. SHEIKH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/12/01
Vol. E84-B  No. 12 ; pp. 3286-3289
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
outage probabilityRAKE receiveradaptive arrayW-CDMA
 Summary | Full Text:PDF(172.7KB)

Experiments on Inter-Sector Diversity Using Maximal Ratio Combining in W-CDMA Reverse Link
Akihito MORIMOTO Kenichi HIGUCHI Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12 ; pp. 3012-3025
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
W-CDMAsite diversitytransmit power controlRake combining
 Summary | Full Text:PDF(2.4MB)

Experiments on Space Time Block Coding Transmit Diversity (STTD) in W-CDMA Forward Link
Satoru FUKUMOTO Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12 ; pp. 3045-3057
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
mobile radio communicationW-CDMAtransmit diversityfast transmit power control
 Summary | Full Text:PDF(2.4MB)

Complexity Reduction of Turbo Decoding
Akira SHIBUTANI Hirohito SUDA Yasushi YAMAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9 ; pp. 2705-2709
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
turbo codingiterative decodingCRCW-CDMA
 Summary | Full Text:PDF(509.9KB)

Comparison of Hybrid ARQ Schemes and Optimization of Key Parameters for High-Speed Packet Transmission in W-CDMA Forward Link
Nobuhiko MIKI Hiroyuki ATARASHI Sadayuki ABETA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7 ; pp. 1681-1690
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
mobile radioW-CDMAhigh-speed downlink packet accesshybrid ARQ
 Summary | Full Text:PDF(1011.4KB)

Outer Loop Control of Fast Transmit Power Control Based on Intermediate Block Error Rate in Concatenated Channel Coding for DS-CDMA Mobile Radio
Koichi OKAWA Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7 ; pp. 1691-1701
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
mobile radioW-CDMAconcatenated channel codingtransmit power controlouter loop control
 Summary | Full Text:PDF(2.1MB)

Effects of Status Broadcast Period in Common Packet Channel with Channel Monitoring of W-CDMA System
Jae-Woo SO Don-Ho CHO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/04/01
Vol. E84-B  No. 4 ; pp. 1094-1099
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
common packet channelchannel monitoringCPCH status broadcastW-CDMA
 Summary | Full Text:PDF(195.2KB)

Combined Effect of Coherent Adaptive Antenna Array Diversity and SINR-Based Fast Transmit Power Control in W-CDMA Reverse Link
Shinya TANAKA Atsushi HARADA Taisuke IHARA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3 ; pp. 425-434
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
mobile communicationW-CDMAadaptive antenna arrayfast transmit power control
 Summary | Full Text:PDF(851KB)

Parallel-Type Coherent Multi-Stage Interference Canceller with Iterative Channel Estimation Using Both Pilot and Decision-Feedback Data Symbols for W-CDMA Mobile Radio
Koichi OKAWA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3 ; pp. 446-456
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
mobile radioW-CDMAparallel-type coherent multistage interference cancelleriterative channel estimationdecision-feedback data symbol
 Summary | Full Text:PDF(1.3MB)

Experiments on 2-Mbps Data Transmission Applying Antenna Diversity Reception over 5-MHz W-CDMA Mobile Radio Link
Koichi OKAWA Satoru FUKUMOTO Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8 ; pp. 1602-1609
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
mobile radioW-CDMA2-Mbps data transmissionantenna diversityTPC
 Summary | Full Text:PDF(1.5MB)

Wide-Band CDMA Distortion Characteristics of an AlGaAs/InGaAs/AlGaAs Heterojunction FET under Various Quiescent Drain Current Operations
Gary HAU Takeshi B. NISHIMURA Naotaka IWATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/11/25
Vol. E82-C  No. 11 ; pp. 1928-1935
Type of Manuscript:  Special Section PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: RF Power Devices
Keyword: 
FETmicrowaveamplifierdistortionsimulationW-CDMA
 Summary | Full Text:PDF(1017.5KB)

Third-Generation Mobile Telecommunication System
Fumio SUZUKI Hideshi TAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/11/25
Vol. E82-C  No. 11 ; pp. 1871-1878
Type of Manuscript:  INVITED PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: Information and Communication System
Keyword: 
W-CDMAThird-Generation Mobile TelecommunicationIMT-2000
 Summary | Full Text:PDF(3.1MB)

Harmonic Feedback Circuit Effects on Intermodulation Products and Adjacent Channel Leakage Power in HBT Power Amplifier for 1. 95 GHz Wide-Band CDMA Cellular Phones
Kazukiyo JOSHIN Yasuhiro NAKASHA Taisuke IWAI Takumi MIYASHITA Shiro OHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/05/25
Vol. E82-C  No. 5 ; pp. 725-729
Type of Manuscript:  Special Section PAPER (Special Issue on Low Distortion Technology for Microwave Devices and Circuits)
Category: 
Keyword: 
heterojunction bipolar transistorintermodulationharmonicsW-CDMA
 Summary | Full Text:PDF(361.1KB)

Current Situation of IMT-2000 Radio Transmission Technology Study in Japan
Akio SASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7 ; pp. 1299-1304
Type of Manuscript:  INVITED PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
IMT-2000FPLMTSITUARIBW-CDMAradio transmission technology
 Summary | Full Text:PDF(383.4KB)