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检索条件"主题词=Modulation Coding"
7237 条 记 录,以下是411-420 订阅
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Software based flexible measuring systems for analysis of digitally modulated systems
Software based flexible measuring systems for analysis of di...
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Roedunet International Conference (RoEduNet)
作者: Radek Martinek Mohamed Al-Wohaishi Jan ćídek Department of Measurement and Control VŠB - Technical University of Ostrava Ostrava Czech Republic Department of Measurement and Control VŠB - Technical University of Ostrava 17. listopadu 15/2172 708 33 Czech Republic
This paper describes modern software based flexible measuring systems for analysis of digitally modulated systems. The latest methods for evaluation of modulation parameters using new generation test systems based on ... 详细信息
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Distributed Space-Time 4CPFSK Trellis Codes for Amplify & Forward Relaying
Distributed Space-Time 4CPFSK Trellis Codes for Amplify & Fo...
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International Conference on Communication Theory, Reliability, and Quality of Service, CTRQ
作者: Ali Serdar Demiroglu Ibrahim Altunbas Mehmet Ertugrul Çelebi Technology Development Department Nortel Netaş Istanbul Türkiye Electronics & Communication Department Istanbul Technical University Istanbul Türkiye
Continuous phase frequency shift keying is a power/bandwidth efficient modulation technique, hence, attractive for use in relay/cooperative systems employing inexpensive nonlinear power amplifiers. We investigate opti... 详细信息
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Space-time bit trellis codes
Space-time bit trellis codes
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International ITG Conference on Source and Channel coding (SCC)
作者: Frank Kienle Christina Gimmler Microelectronic Systems Design Research Group University of Kaiserslautern Kaiserslautern Germany
Multiple antenna systems are a promising approach to increase the data rate of wireless communication systems. There exist two main transmission schemes. In BICM systems, modulated symbols are multiplexed on multiple ... 详细信息
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Rotated modulations for outage probability minimization: a fading space approach
Rotated modulations for outage probability minimization: a f...
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IEEE International Symposium on Information Theory
作者: Dieter Duyck Joseph J. Boutros Marc Moeneclaey Ghent University Ghent Belgium Texas A and M University Doha Qatar
The outage probability limit is a fundamental lower bound on the word error rate of coded communications systems. It is mainly determined by two parameters: the diversity order and the coding gain. With linear precodi... 详细信息
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Constrained Capacities of DVB-S2 Constellations in Log-Normal Channels at Ka Band
Constrained Capacities of DVB-S2 Constellations in Log-Norma...
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International Conference on Advances in Satellite and Space Communications, SPACOMM
作者: Scott Enserink Michael P. Fitz Department of Electrical Engineering University of California Los Angeles Los Angeles CA USA AeroSpace Systems Northrop Grumman Corporation Redondo Beach CA USA
Researchers have investigated the Shannon capacity of satellite links that have log-normal rain-fading channels in the Ka band (20-30 GHz). This paper uses information theoretic tools to expand on the previous work by... 详细信息
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Codes in permutations and error correction for rank modulation
Codes in permutations and error correction for rank modulati...
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IEEE International Symposium on Information Theory
作者: Alexander Barg Arya Mazumdar Department of ECE and Institute for Systems Research University of Maryland College Park USA Dobrushin Mathematical Laboratory Institute for Problems of Information Transmission Russian Academy of Science Moscow Russia
Codes for rank modulation have been recently proposed as a means of protecting flash memory devices from errors. We study basic coding theoretic problems for such codes, representing them as subsets of the set of perm... 详细信息
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Data Transmission over GSM Adaptive Multi Rate Voice Channel Using Speech-Like Symbols
Data Transmission over GSM Adaptive Multi Rate Voice Channel...
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International Conference on Signal Acquisition and Processing, ICSAP
作者: Ali Shahbazi Amir Hossein Rezaei Abolghasem Sayadiyan Saeed Mosayyebpour Department of Electrical Engineering Amirkabir University of Technology Tehran Tehran Iran Amirkabir University of Technology Tehran Tehran IR
This paper introduces a new method to transmit digital data through Global System for Mobile communications (GSM) voice channel. A novel algorithm is proposed to design a set of Speech-Like (SL) symbols which leads to... 详细信息
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The Research of Acquiring BOC Signal in Navigation System
The Research of Acquiring BOC Signal in Navigation System
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International Conference on Networks Security, Wireless Communications and Trusted Computing, NSWCTC
作者: Bo Qian Yong-xin Feng Cheng-sheng Pan Shuang Sun Department of Control Science and Engineering Nanjing University of Science and Technology of PLA Nanjing China Department of Control Science and Engineering China Shenyang LiGong University Shenyang China Shenyang LiGong University Shenyang Shenyang China Dalian University Dalian Dalian China Shenyang the thirty middle School Shenyang China
An algorithm is simulated and researched for direct acquiring PRN code based on the technology of band pass signal sub-sampling, utilizing the auto-correlation characteristic of the long period PRN code in BOC modulat... 详细信息
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Non-Uniform and Large Distance Constellation Design for Hierarchical modulation
Non-Uniform and Large Distance Constellation Design for Hier...
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IEEE International Conference on Communications (ICC)
作者: J. Wu Fujitsu Research and Development Center Company Limited Beijing China
In this paper, we newly design a non-uniform QAM signal constellation, which could be appropriately applied for hierarchical modulation. This novel constellation is constructed by a certain number of equilateral trian... 详细信息
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Choice of physical layer code rate and modulation for DVB-SH
Choice of physical layer code rate and modulation for DVB-SH
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IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)
作者: Marco Breiling Albert Heuberger Ernst Eberlein Aharon Vargas Fraunhofer Institute of Integrated Circuits and Systems Erlangen Germany Fachgebiet Digitaler Rundfunk Technische Universität Illmenau Ilmenau Germany
This paper assesses the spectral efficiencies that can be achieved in theory and simulation for several channel models, and where the same spectral efficiencies can result from different combinations of the signal con... 详细信息
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