Keyword : QAM


Optical DP-High Order-QAM Transmission System for High-Speed Short Links Utilizing Copropagating Twin Local Lights
Hiroto KAWAKAMI Takayuki KOBAYASHI Yutaka MIYAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/08/01
Vol. E99-B  No. 8 ; pp. 1799-1804
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC2015)
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
QAMdigital coherent detectionphase noiselinewidth
 Summary | Full Text:PDF(1.3MB)

A Generalized Construction of Non-Square M-QAM Sequences with Low PMEPR for OFDM Systems
Dongxu MA Zilong WANG Hui LI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/06/01
Vol. E99-A  No. 6 ; pp. 1222-1227
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
Golay complementary setQAMorthogonal frequency-division multiplexing (OFDM)peak-to-mean envelope power ratio (PMEPR)
 Summary | Full Text:PDF(776.4KB)

Quasi-Linear Trellis-Coded QAM Using a Matched Mapping
Tatsumi KONISHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/04/01
Vol. E98-A  No. 4 ; pp. 1049-1053
Type of Manuscript:  LETTER
Category: Coding Theory
Keyword: 
trellis-coded modulation (TCM)convolutional codesQAMEuclidean distancesmatched mapping
 Summary | Full Text:PDF(594.1KB)

Spectrum Sharing Overlay System with a Repeater for the Primary Signal
Jun NAGANAWA Kentaro KOBAYASHI Hiraku OKADA Masaaki KATAYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/07/01
Vol. E97-A  No. 7 ; pp. 1576-1586
Type of Manuscript:  PAPER
Category: Communication Theory and Signals
Keyword: 
cognitive radiospectrum sharingoverlayregenerative repeaterQAM
 Summary | Full Text:PDF(1.9MB)

A Virtual Layered Successive Detector with Adaptive Transmit Signal Phase Rotation for QAM
Satoshi DENNO Jun IMAMURA Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/10/01
Vol. E95-B  No. 10 ; pp. 3232-3241
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOspatial multiplexingQAMvirtual channelsuccessive detectioneigenvalue
 Summary | Full Text:PDF(853.5KB)

Ultra-High Capacity Optical Transmission Technologies for 100 Tbit/s Optical Transport Networks
Akihide SANO Takayuki KOBAYASHI Eiji YOSHIDA Yutaka MIYAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2 ; pp. 400-408
Type of Manuscript:  INVITED PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
coherent optical communicationmulti-level modulationQAMRaman amplification
 Summary | Full Text:PDF(1.5MB)

On (1) Error Correctable Integer Codes
Hristo KOSTADINOV Hiroyoshi MORITA Nikolai MANEV 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12 ; pp. 2758-2761
Type of Manuscript:  LETTER
Category: Information Theory
Keyword: 
integer codesfinite ringsQAMAWGN
 Summary | Full Text:PDF(137.3KB)

Soft Decoding of Integer Codes and Their Application to Coded Modulation
Hristo KOSTADINOV Hiroyoshi MORITA Noboru IIJIMA A. J. HAN VINCK Nikolai MANEV 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/07/01
Vol. E93-A  No. 7 ; pp. 1363-1370
Type of Manuscript:  PAPER
Category: Information Theory
Keyword: 
finite ringsinteger codescoded modulationQAMPSKAWGNSEP
 Summary | Full Text:PDF(5.8MB)

A New LLR Approximation for BICM Systems with HARQ
Jin Whan KANG Sang-Hyo KIM Seokho YOON Tae Hee HAN Hyoung Kee CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6 ; pp. 1628-1632
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
log-likelihood ratioBICMHARQQAMdemapper
 Summary | Full Text:PDF(234KB)

On Distorted Constellations of 16-Ary Modulation Schemes
Sangtae KIM Wonjin SUNG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5 ; pp. 1632-1635
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
QAMAPSKsaturationdistorted constellationnonlinear channels
 Summary | Full Text:PDF(391.9KB)

Effect of the Phase/Quadrature Error and I/Q Gain Imbalance for QAM Symbol Error Probability
Jinah PARK Seungkeun PARK Pyung-Dong CHO Hyeong-Ho LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/11/01
Vol. E90-B  No. 11 ; pp. 3287-3289
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
QAMsymbol error probabilityphase errorquadrature errorI-Q gain imbalance
 Summary | Full Text:PDF(194.3KB)

Kalman Carrier Recovery Algorithm for High-Order QAM
Dah-Chung CHANG Wei-Tsen LIN Yung-Fang CHEN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/11/01
Vol. E89-B  No. 11 ; pp. 3117-3119
Type of Manuscript:  LETTER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
Kalman filtercarrier synchronizationQAMcable modem
 Summary | Full Text:PDF(1.4MB)

BER Performance of Rectangular QAM with MRC over Nakagami-n Fading Channels
Jung Seok LIM Kwangmin HYUN Dongweon YOON Sang Kyu PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Vol. E88-B  No. 4 ; pp. 1697-1701
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
QAMNakagami-n fadingMRCbit error probability
 Summary | Full Text:PDF(649.7KB)

Derivation on Bit Error Probability of Coded QAM Using Integer Codes
Hristo KOSTADINOV Hiroyoshi MORITA Nikolai MANEV 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/12/01
Vol. E87-A  No. 12 ; pp. 3397-3403
Type of Manuscript:  PAPER
Category: Communication Theory and Signals
Keyword: 
integer codesfinite ringsQAMBEPAWGN
 Summary | Full Text:PDF(289.2KB)

Performance Analysis of MRC Diversity for Arbitrary Rectangular QAM Signals over Nakagami Fading Channels
Kwangmin HYUN Dongweon YOON Sang Kyu PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/05/01
Vol. E87-B  No. 5 ; pp. 1297-1305
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
QAMBERMRCdiversityfadingwireless communications
 Summary | Full Text:PDF(1.4MB)

A Folded VLSI Architecture of Decision Feedback Equalizer for QAM Modem
Hyeongseok YU Byung Wook KIM Jun-Dong CHO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Vol. E87-A  No. 3 ; pp. 628-639
Type of Manuscript:  Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Communication Theory and Systems
Keyword: 
decision feedback equalizerQAMVLSIFIR filterfolding
 Summary | Full Text:PDF(3.2MB)

An Iterative Sequence Estimator for QAM-OFDM Signals
Jong-Ho LEE Jae-Choong HAN Seong-Cheol KIM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12 ; pp. 3638-3641
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
iterative sequence estimationEM algorithmQAMOFDM
 Summary | Full Text:PDF(222.8KB)

Decision-Directed Channel Estimation for QAM-Modulated OFDM Systems
Minjoong RIM Jaemin AHN Yeon-soo KIM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/04/01
Vol. E86-B  No. 4 ; pp. 1427-1430
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
channel estimationdecision-directedQAMOFDMwireless
 Summary | Full Text:PDF(187.3KB)

New Parameters for Classifying Digitally Modulated Unknown QAM and PSK Signals
Beom Soo KIM Hwang Soo LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/02/01
Vol. E84-B  No. 2 ; pp. 325-329
Type of Manuscript:  LETTER
Category: Fundamental Theories
Keyword: 
classificationQAMPSK
 Summary | Full Text:PDF(234.1KB)

A Polarity Decision Carrier Recovery Algorithm Using Selected Symbols for High Order QAM
Kiyun KIM Hyungjin CHOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/11/25
Vol. E83-B  No. 11 ; pp. 2542-2544
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
carrier recoveryQAMphase detector
 Summary | Full Text:PDF(274.5KB)

A Novel Channel Estimation Scheme Employing Adaptive Selection of Frequency-Domain Filters for OFDM Systems
Takeshi ONIZAWA Masato MIZOGUCHI Masahiro MORIKURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/12/25
Vol. E82-B  No. 12 ; pp. 1923-1931
Type of Manuscript:  Special Section PAPER (Special Issue on Multimedia Mobile Communication Systems)
Category: 
Keyword: 
wireless LANOFDMQAMcoherent detectionchannel estimationadaptive filterbit shifter
 Summary | Full Text:PDF(387.9KB)

A VLSI Architecture Design for Dual-Mode QAM and VSB Digital CATV Transceiver
Muh-Tian SHIUE Chorng-Kuang WANG Winston Ingshih WAY 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/12/25
Vol. E81-B  No. 12 ; pp. 2351-2356
Type of Manuscript:  Special Section PAPER (Special Issue on the Latest Development of Telecommunication Research)
Category: Wireless Communication Systems
Keyword: 
QAMVSBAGCcarrier recoverytiming recoveryfractionally spaced blind equalizer and DFE
 Summary | Full Text:PDF(620.6KB)

Transmission Experiments on Slow-FH/16QAM System for Land Mobile Communications
Kiyoshi HAMAGUCHI Eimatsu MORIYAMA Yukiyoshi KAMIO Hideichi SASAOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7 ; pp. 1444-1452
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
frequency hoppingQAMinterferenceexperimentland mobile
 Summary | Full Text:PDF(779KB)

Implementation of and Field Experiment on High-Speed Multimedia Multimode TDMA Radio Transmission Systems
Eimatsu MORIYAMA Yukiyoshi KAMIO Kiyoshi HAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7 ; pp. 1433-1443
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
QPSKQAMland mobile radioTDMAfield experimentDFE
 Summary | Full Text:PDF(1.2MB)

Performance of Multicarrier/QAM-Level-Controlled Adaptive Modulation for Land Mobile Communication Systems
Kiyoshi HAMAGUCHI Eimatsu MORIYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/04/25
Vol. E81-B  No. 4 ; pp. 770-776
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
multicarrierQAMadaptivetime division duplexland mobile communications
 Summary | Full Text:PDF(588.6KB)

New Neural Network Based Nonlinear and Multipath Distortion Equalizer for FTTA Systems
Jun IDO Minoru OKADA Shozo KOMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/08/25
Vol. E80-B  No. 8 ; pp. 1138-1144
Type of Manuscript:  Special Section PAPER (Special Issue on Mobile Computing)
Category: 
Keyword: 
digital communicationnonlinear distortionmultipathequalizerneural networkQAM
 Summary | Full Text:PDF(586.1KB)

Phase Jitter of Carrier Recovery Using Fourth-Power Multiplier for QPSK and QAM Transmission
Kazuhiro MIYAUCHI Takahiro NAGAI Masataka KATO Shigeo OHUE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/05/25
Vol. E80-B  No. 5 ; pp. 755-762
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
carrier recovery circuitrms phase jitterfourth-power miltiplierQPSKQAM
 Summary | Full Text:PDF(540.8KB)

An Application of Simulated Annealing to the Design of Block Coded Modulation
Minoru OKADA Shinsuke HARA Shozo KOMAKI Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/01/25
Vol. E79-B  No. 1 ; pp. 88-91
Type of Manuscript:  LETTER
Category: Radio Communication
Keyword: 
coded modulationfadingQAMsimulated annealing
 Summary | Full Text:PDF(257.8KB)

Symbol Rate Controlled Adaptive Modulation/TDMA/TDD for Wireless Personal Communication Systems
Toyoki UE Seiichi SAMPEI Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/08/25
Vol. E78-B  No. 8 ; pp. 1117-1124
Type of Manuscript:  Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
adaptive modulationQAMTDMA/TDDwireless personal communicationmultipath fading
 Summary | Full Text:PDF(795.8KB)

Field Experiments on 16QAM/TDMA and Trellis Coded 16QAM/TDMA Systems for Digital Land Mobile Radio Communications
Norihito KINOSHITA Seiichi SAMPEI Eimatsu MORIYAMA Hideichi SASAOKA Yukiyoshi KAMIO Kazuyuki MIYA Katsuhiko HIRAMATSU Kazunori INOGAI Koichi HOMMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/07/25
Vol. E77-B  No. 7 ; pp. 911-920
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
coded modulationQAMTDMAfield experimentsland mobile communications
 Summary | Full Text:PDF(936.3KB)