Keyword : spectral efficiency


Unified Time-Frequency OFDM Transmission with Self Interference Cancellation
Changyong PAN  Linglong DAI  Zhixing YANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/04/01
Vol. E96-A  No. 4  pp. 807-813
Type of Manuscript: PAPER
Category: Communication Theory and Signals
Keyword: 
orthogonal frequency division multiplexingtraining sequenceinterference cancellationlow complexityspectral efficiency
  Summary |  Full Text:PDF (937.2KB)

Study on Resource Optimization for Heterogeneous Networks
Gia Khanh TRAN  Shinichi TAJIMA  Rindranirina RAMAMONJISON  Kei SAKAGUCHI  Kiyomichi ARAKI  Shoji KANEKO  Noriaki MIYAZAKI  Satoshi KONISHI  Yoji KISHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1198-1207
Type of Manuscript: Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
heterogeneous networkspectrum allocationpower allocationcell range expansionspectral efficiency
  Summary |  Full Text:PDF (1.4MB)

Continuous-Phase, Unmodulated Parallel-Combinatory High-Compaction Multicarrier Modulation
Ryuji HAYASHI  Masanori HAMAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 802-805
Type of Manuscript: LETTER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
PC signalingHC-MCMcontinuous-phase modulationspectral efficiency
  Summary |  Full Text:PDF (811.6KB)

256 QAM Digital Coherent Optical Transmission Using Raman Amplifiers
Masato YOSHIDA  Seiji OKAMOTO  Tatsunori OMIYA  Keisuke KASAI  Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 417-424
Type of Manuscript: Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
coherent transmissionquadrature amplitude modulationspectral efficiencyfrequency-stabilized laseroptical phase-locked loop
  Summary |  Full Text:PDF (1.4MB)

Ultra-Long-Haul WDM Transmission with High Spectral Efficiency
Yi CAI  Jin-Xing CAI  Carl R. DAVIDSON  Dmitri G. FOURSA  Alan J. LUCERO  Oleg V. SINKIN  Yu SUN  Alexei N. PILIPETSKII  Georg MOHS  Neal S. BERGANO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 392-399
Type of Manuscript: Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: INVITED
Keyword: 
optical fiber communicationspectral efficiencycoherent detectionpre-filteringMAP detection
  Summary |  Full Text:PDF (1.5MB)

Channel-Gain-Based Transmission Scheduling for Cooperative Relaying
Naotaka SHIBATA  Koji YAMAMOTO  Hidekazu MURATA  Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 776-779
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
Keyword: 
cooperative relayingtransmission schedulingspectral efficiency
  Summary |  Full Text:PDF (227.7KB)

Constant Power Allocation Methods for SC-FDMA Systems
Wei-Cheng PAO  Yung-Fang CHEN  Dah-Chung CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/03/01
Vol. E93-B  No. 3  pp. 771-775
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
SC-FDMAspectral efficiencypower allocationwaterfilling methods
  Summary |  Full Text:PDF (317.9KB)

Adaptive Decode-and-Forward Cooperative Networks with Limited Feedback
Ha Nguyen VU  Hyung Yun KONG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/02/01
Vol. E93-B  No. 2  pp. 415-418
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
adaptive cooperationdecode and forwardspectral efficiencyBER performancepower allocation
  Summary |  Full Text:PDF (187.1KB)

A Low-PAPR Multiplexed MC-CDMA System with Enhanced Data Rate and Link Quality
Juinn-Horng DENG  Jeng-Kuang HWANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/01/01
Vol. E93-B  No. 1  pp. 135-143
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
multi-carrier CDMA (MC-CDMA)cyclic-shift orthogonal keying (CSOK)spectral efficiencylink qualitypeak-to-average power ratio (PAPR)
  Summary |  Full Text:PDF (877.5KB)

Capacity Analysis of Cooperative Relaying Networks with Adaptive Relaying Scheme Selection
Kunihiko TESHIMA  Koji YAMAMOTO  Hidekazu MURATA  Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3744-3752
Type of Manuscript: PAPER
Category: Network
Keyword: 
cooperative relayingmultihopspectral efficiencyadaptive controlgame theory
  Summary |  Full Text:PDF (527.8KB)

A Simple Performance Approximation for Multi-Hop Decode-and-Forward Relaying over Rayleigh Fading Channels
Bao Quoc VO-NGUYEN  Hyung Yun KONG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3524-3527
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
multi-hop relayingrayleigh fadingdecode-and-forward relayingbit error probabilitysymbol error probabilityspectral efficiencyprobability of SNR gain
  Summary |  Full Text:PDF (199KB)

Improved Subcarrier Allocation in Multi-User OFDM Systems
Won Joon LEE  Jaeyoon LEE  Dongweon YOON  Sang Kyu PARK 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/12/01
Vol. E91-B  No. 12  pp. 4030-4033
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMsubcarrier allocationoutage probabilityspectral efficiency
  Summary |  Full Text:PDF (160.2KB)

Spectral Efficiency Improvement of OFDM by Using Time Domain Superimposition of Data
JunKyoung LEE  JangHoon YANG  DongKu KIM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Vol. E91-B  No. 10  pp. 3355-3359
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMsuperimpositionspectral efficiencyPAPR
  Summary |  Full Text:PDF (130.2KB)

Optimum Wavelength Filter Spectrum Response in DWDM Systems for Ultimate Spectral Efficiency
Shuichi SUZUKI  Yasuo KOKUBUN 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/09/01
Vol. E88-B  No. 9  pp. 3649-3659
Type of Manuscript: PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
WDMwavelength multi/demultiplexerspectral efficiencycrosstalkcascaded filtercrosstalk floor
  Summary |  Full Text:PDF (1.7MB)

Ultra-Dense WDM with over 100% Spectral Efficiency Using Co-polarized 40-Gb/s Inverse-RZ Signals
Masahiro OGUSU  Kazuhiko IDE  Shigeru OHSHIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 195-202
Type of Manuscript: PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
dense WDM systemsspectral efficiency40 Gb/sinverse-RZ signals
  Summary |  Full Text:PDF (2.1MB)

Study of Orthogonal SSB Modulation Method
Gen-ichiro OHTA  Mitsuru UESUGI  Takuro SATO  Hideyoshi TOMINAGA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/10/01
Vol. E87-A  No. 10  pp. 2676-2683
Type of Manuscript: Special Section PAPER (Special Section on Wide Band Systems)
Category: 
Keyword: 
spectral efficiencysingle side bandHilbert transformsorthogonal modulation systemNyquist transmissionwideband
  Summary |  Full Text:PDF (1.3MB)

A Practical Adaptive TuCM for Fading Channel
Shouhao WU  Wentao SONG  Hanwen LUO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/08/01
Vol. E86-C  No. 8  pp. 1564-1571
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: 
Keyword: 
adaptive coded modulationTuCMspectral efficiencydelaychannel estimation error
  Summary |  Full Text:PDF (643KB)

Bi-Orthogonal Modulation Systems Using Two Different Inner Sequences
Kouji OHUCHI  Hiromasa HABUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 2976-2982
Type of Manuscript: Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
bi-orthogonal modulation systemframe synchronizationinner sequencecode shift keyingspectral efficiency
  Summary |  Full Text:PDF (626.2KB)

Performance Evaluation of DS/CDMA Communications Systems Modulated with π/2-Shift BPSK over Multipath Rayleigh Fading Channels
M. M. Asadullah GALIB  Takaya YAMAZATO  Masaaki KATAYAMA  Akira OGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/20
Vol. E81-A  No. 11  pp. 2304-2310
Type of Manuscript: Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
π/2-shift BPSKDS/SS/CDMAsoft/hard-limiterout-of-band powerspectral efficiencyRAKE receiver
  Summary |  Full Text:PDF (647.8KB)

Double M-Ary/Spread Spectrum Communication Systems
Kentaro TAKEUCHI  Masanori HAMAMURA  Sin'ichi TACHIKAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/10/20
Vol. E81-A  No. 10  pp. 2064-2072
Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Spread Spectrum System
Keyword: 
spread spectrumM-ary/SSdouble M-ary/SSspectral efficiency
  Summary |  Full Text:PDF (742.4KB)

Spectral Efficiency Improvement by Base Station Antenna Pattern Control for Land Mobile Cellular Systems
Takeo OHGANE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/05/20
Vol. E77-B  No. 5  pp. 598-605
Type of Manuscript: Special Section PAPER (Special Issue on Adaptive Signal Processing in Mobile Radio Communications)
Category: 
Keyword: 
co-channel interferencecellular systemadaptive arrayspectral efficiency
  Summary |  Full Text:PDF (608.5KB)

Characteristics of M-Ary/Spread Spectrum Multiple Access Communication Systems Using Co-Channel Interference Cancellation Techniques
Shin'ichi TACHIKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/20
Vol. E76-B  No. 8  pp. 941-946
Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
spread spectrum communication systemDS/SSMAM-ary/SSMAco-channel interference cancellationspectral efficiency
  Summary |  Full Text:PDF (447.2KB)

Performance of Asynchronous Band-Limited DS/SSMA Systems
Takafumi SHIBATA  Masaaki KATAYAMA  Akira OGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/20
Vol. E76-B  No. 8  pp. 921-928
Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
direct-sequence spread-spectrum multiple-accesssignal-to-noise plus interference ratioband-limitationspectral efficiencygold sequence
  Summary |  Full Text:PDF (490.6KB)

Modulation in Spread Spectrum Communication Systems
Shin'ichi TACHIKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/06/20
Vol. E75-B  No. 6  pp. 445-452
Type of Manuscript: INVITED PAPER (Special Issue on Communication Theory)
Category: 
Keyword: 
modulationspread spectrumM-ary/SSMAspectral efficiency
  Summary |  Full Text:PDF (546.3KB)