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检索条件"主题词=Modulation coding"
7024 条 记 录,以下是191-200 订阅
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A simplified approach to coding, modulation, and detection design for generalized MSK with two symbol period pulse duration
A simplified approach to coding, modulation, and detection d...
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Biennial Symposium on Communications, QBSC
作者: Walid Abediseid Peter Galko Department of Electrical & Computer Engineering University of Waterloo of Canada Canada School of Information Technology & Engineering University of Ottawa Canada
Double repetition code exhibits unique properties when combined with precoded generalized minimum-shift keying signals of up to two symbol period pulse duration. It is shown that using two stages of channel encoding, ... 详细信息
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coding, processing gain, and modulation in frequency-hopped multiple access communications: tradeoff considerations
Coding, processing gain, and modulation in frequency-hopped ...
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IEEE International Symposium on Information Theory
作者: Sang Wu Kim Department of Electrical Engineering Korea Advanced Institute of Science and Technology Taejeon South Korea
We consider a situation where K transmitter-receiver pairs communicate simultaneously over a channel of bandwidth B. Each transmitter sends one of the M possible signals in every 2 seconds over one of the p possible f... 详细信息
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Adaptive coding for pilot symbol assisted modulation without feedback
Adaptive coding for pilot symbol assisted modulation without...
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Asilomar Conference on Signals, Systems & Computers
作者: M. Medard I. Abou-Faycal U. Madhow Laboratory for Information and Decision Systems Massachusetts Institute of Technology USA Electrical and Computer Engineering Department University of California Santa Barbara USA
We show that pilot symbol assisted modulation (PSAM) schemes can be improved by adapting the coded modulation strategy at the sender to the quality of the channel measurement at the receiver, without requiring any cha... 详细信息
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Adaptive coding and modulation for hybrid FSO/RF systems
Adaptive coding and modulation for hybrid FSO/RF systems
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Asilomar Conference on Signals, Systems & Computers
作者: Y. Tang M. Brandt-Pearce S. G. Wilson Charles L. Brown Department of Electrical and Computer Engineering University of Virginia Charlottesville VA USA
Hybrid free space optical (FSO)/RF communication systems can provide high throughput short range ¿lastmile¿ connectivity. Since channel conditions are highly variable, adaptive symbol rate and modulation sch... 详细信息
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On construction of bandwidth efficient, low complexity, and high coding gain 8-PSK modulation codes
On construction of bandwidth efficient, low complexity, and ...
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[Conference Record] GLOBECOM '92 - Communications for Global Users: IEEE
作者: S. Lin S. Rajpal D.J. Rhee Department of Electrical Engineering University of Hawaii Manoa Honolulu HI USA
Nested concatenated coded 8-PSK (phase-shift keying) modulation schemes are proposed to achieve good error performance, large coding gains, and high spectral efficiency with reduced decoding complexity. In the concate... 详细信息
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Link Analysis of Commercial and Wideband Gapfiller Satellite (WGS) Satellites Using DVB-S2 with Variable coding and modulation (VCM)
Link Analysis of Commercial and Wideband Gapfiller Satellite...
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MILCOM, Military Communications Conference
作者: Bruce Bennett Daniel Hannan Jim Marshall Richard Gibbons DISA USA SMDC/ARSTRAT USA MITRE Corporation USA
A link analysis was performed of the digital video broadcast-satellite (DVB-S) second generation waveform (DVB-S2) using a commercial (Ku band) and the wideband gapfiller satellite (WGS) satellite at X-band and Ka-ban... 详细信息
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Embedded turbo coding in pattern position modulation for ultra wideband radio systems
Embedded turbo coding in pattern position modulation for ult...
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IEEE International Symposium on Information Theory
作者: Chunyu Bi J.Y. Hui L. Bodenheimer H. Spielberg Detecon Inc. San Mateo CA USA Department of Electrical Engineering Arizona State University Tempe AZ USA
In this paper, a novel method is proposed to do turbo coding for pulse (pattern) position modulation, for ultra wideband radio system. Such systems maps multiple PPM slot detections into the probabilities of those bit... 详细信息
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Combined source coding and modulation for fading channels
Combined source coding and modulation for fading channels
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IEEE Conference on Vehicular Technology (VTC)
作者: G.E. Atkin B. Patel J. Rahhal Electrical and Computer Engineering Department Illinois Institute of Technology Chicago IL USA
The authors report on a combined source encoding and modulation technique based on permutation codes (PCs). This combined system directly maps the source codewords into modulation symbols. This system offers improveme... 详细信息
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DVB-S2 Adaptive coding and modulation for HAP Communication System
DVB-S2 Adaptive Coding and Modulation for HAP Communication ...
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IEEE Conference on Vehicular Technology (VTC)
作者: Miha Smolnikar Tomaz Javornik Mihael Mohorcic Matteo Berioli Department of Communication Systems Jozef Stefan Institute Ljubljana Slovenia Institute of Communications and Navigation German Aerospace Center Oberpfaffenhofen Germany
Combining some of the best terrestrial and satellite systems' characteristics, high altitude platforms (HAPs) have recently emerged as an alternative solution for the provision of broadband services. Characterised... 详细信息
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Combined frequency/phase modulation with multiple trellis coding
Combined frequency/phase modulation with multiple trellis co...
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IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
作者: S.S. Periyalwar S. Fleisher Department of Electrical Engineering Technical University of Nova Scotia Halifax NS Canada
The concept of multiple trellis-coded modulation (MTCM) is extended to frequency- and phase-modulated (FPM) signal sets. A significant improvement is observed in the performance for AWGN and fading channels when compa... 详细信息
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