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检索条件"主题词=Modulation coding"
7022 条 记 录,以下是1251-1260 订阅
Performance analysis and simulation of cyclic code-shift keying
Performance analysis and simulation of cyclic code-shift key...
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MILCOM, Military Communications Conference
作者: Chi-Han Kao Clark Robertson Kyle Lin Electrical and Computer Engineering Department Naval Postgraduate School Montreal CA USA Operations Research Department Naval Postgraduate School Montreal CA USA
Cyclic code-shift keying (CCSK) is the baseband symbol modulation scheme used by Joint Tactical Information Distribution System (JTIDS), the communication terminal of Link-16. Since CCSK is non-orthogonal, an analytic... 详细信息
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Title: Test of an experimental SATCOM network in EHF band
Title: Test of an experimental SATCOM network in EHF band
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MILCOM, Military Communications Conference
作者: Gaston Levannier Nassima Bouchelit Emmanuel Thome Christian Fabret TEC/STR CELAR La Roche Marguerite Bruz France French DGA - Citizenship FRANCE CELAR La Roche Marguerite-Division BRUZ CEDEX FRANCE
In 2008, the French MoD has started an experimental SATCOM network which aims at using EHF resources (44/21 GHz) in an efficient manner. It will lead to an operational use of this frequency band in order to cope with ... 详细信息
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FPGA Implementation of a Predictive Vector Quantization Image Compression Algorithm for Image Sensor Applications
FPGA Implementation of a Predictive Vector Quantization Imag...
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IEEE International Workshop on Electronic Design, Test and Applications (DELTA)
作者: Yan Wang Amine Bermak Abdesselam Bouzerdoum Brian Ng ECE Department Hong Kong University of Science and Technology Hong Kong China University of Wollongong Australia University of Adelaide Australia
This paper presents a hybrid image compression scheme based on a block based compression algorithm referred to as Vector Quantization (VQ) combined with the Differential Pulse Code modulation (DPCM) technique. The pro... 详细信息
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A Markov Chain-Based Capacity Dimensioning Method for Wireless Communications System with AMC, HARQ and Packet Multimedia Traffic Source
A Markov Chain-Based Capacity Dimensioning Method for Wirele...
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IEEE International Conference on Communications (ICC)
作者: X. Zhao H. Liang Z. Gu National Mobile Communications Research Laboratory South-East University Nanjing Jiangsu China
Capacity dimensioning is one of the key procedures in wireless network planning. In this paper, the question of how to efficiently evaluate the capacity of wireless communications systems with a comprehensive consider... 详细信息
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Cell Capacity for IEEE 802.16 Coverage Extension
Cell Capacity for IEEE 802.16 Coverage Extension
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Consumer Communications and Networking Conference, CCNC IEEE
作者: Georgios S. Paschos Petteri Mannersalo Thomas Michael Bohnert VTT Technical Research Center of Finland Finland Center of Informatics and Systems University of Coimbra Portugal
This paper analyzes a two-hop extension to the coverage of an IEEE 802.16 cell. There is natural degradation in cell capacity due to multihop communications which can be mitigated by spatial reuse, adaptive modulation... 详细信息
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Investigation of power allocation of transmit antennas selected for limited power communication systems
Investigation of power allocation of transmit antennas selec...
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IEEE International Workshop on Anti-counterfeiting, Security, Identification, ASID
作者: Mingjie Zhuang Rushan Chen Jiaqing Lin Information Engineering College Jimei University Xiamen China School of Electronic Engineering and OptoElectronic Technology National University of Science and Technology Nanjing China
Considering the multiple input and multiple output (MIMO) communication systems under both cases of limited and unlimited power per transmitted antenna, the paper proposes an algorithm of optimal transmit power, refer... 详细信息
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Unitary and Non-Unitary Differential Space-Frequency Coded OFDM
Unitary and Non-Unitary Differential Space-Frequency Coded O...
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IEEE Conference on Wireless Communications and Networking
作者: Engin Zeydan Didem Kivanc Uf Tureli Department Electrical and Computer Engineering Stevens Institute of Technology Hoboken NJ USA Wireless Network Security Center Stevens Institute of Technology Hoboken NJ USA Department Electrical and Computer Engineering WVU Institute of Technology Montgomery WV USA
In this paper, we present the code design structure of unitary and non-unitary differential space-frequency group codes (DSFCs) for multiple-input multiple-output (MIMO)- orthogonal frequency division multiplexing (OF... 详细信息
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Ranging Accuracy and Doppler Tolerance of CW Signal Based on Pseudo-Random Code Bi-Phase modulation
Ranging Accuracy and Doppler Tolerance of CW Signal Based on...
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International Conference on Wireless Communications, Networking and Mobile Computing (WiCom)
作者: Xiao-Peng Yan Xin-Hong Hao Feng-Kai Xu Xiao-Ming Geng
Ambiguity function method is used to study the ranging and Doppler tolerance performance of CW signal based on pseudo-random code bi-phase modulation (PRCBPM). Its ranging resolution and Doppler tolerance confine are ... 详细信息
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Combined User Multiplexing and Data modulation Through Non-Binary Turbo Codes for UWB
Combined User Multiplexing and Data Modulation Through Non-B...
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IEEE Conference on Wireless Communications and Networking
作者: K. Popovski T. A. Wysocki B. J. Wysocki School of Electrical Computer and Telecommunications Engineering University of Wollongong Wollongong NSW Australia Department of Computer and Electronics Engineering University of Nebraska - Lincoln Omaha NE United States of America
With significant research being conducted in Ultra Wideband communications to increase error performance, this paper proposes a combination of user multiplexing and data encoding to achieve a BER improvement. Through ... 详细信息
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Synchronization of cooperative base stations
Synchronization of cooperative base stations
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International Symposium on Wireless Communication Systems (ISWCS)
作者: V. Jungnickel T. Wirth M. Schellmann T. Haustein W. Zirwas Fraunhofer Institute for Telecommunications Heinrich-Hertz-Institut Berlin Germany Nokia Siemens Networks GmbH and Company KG Munchen Germany
We consider synchronization techniques required to enhance the cellular network capacity using base station cooperation. In the physical layer, local oscillators are disciplined by the global positioning system (GPS) ... 详细信息
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