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检索条件"主题词=direct-sequence code-division multiple access"
535 条 记 录,以下是1-10 订阅
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Performance Evaluation of Minimum-Bandwidth direct-sequence code division multiple access in Multipath Fading  7
Performance Evaluation of Minimum-Bandwidth Direct-Sequence ...
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International Conference on Ubiquitous and Future Networks
作者: Lin, Wei-Lun Feng Chia Univ Dept Commun Engn Taichung Taiwan
The error performance of minimum-bandwidth direct-sequence code division multiple access (MB-DS-CDMA) is studied for synchronous and asynchronous scenarios in Nakagami multipath fading channels. Comparing to the bandl... 详细信息
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Performance comparison of chaotic spreading sequences generated by two different classes of chaotic systems in a chaos-based direct sequence-code division multiple access system
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IET COMMUNICATIONS 2013年 第10期7卷 1024-1031页
作者: Rahnama, Nazila Talebi, Siamak Shahid Bahonar Univ Kerman Dept Elect Engn Kerman Iran
In the world of wireless communications, achieving a highly secure transmission at the lowest possible performance degradation has presented a major challenge and a number of conventional direct-sequence-code division... 详细信息
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Estimation of spreading sequences in LC-DS-CDMA signals based on sparse auto-encoder
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EVOLUTIONARY INTELLIGENCE 2020年 第2期13卷 235-246页
作者: Qiang, Fangfang Zhao, Zhijin Shang, Junna Shen, Lei Hangzhou Dianzi Univ Sch Elect & Informat Hangzhou 310018 Peoples R China Hangzhou Dianzi Univ Sch Commun Engn Hangzhou 310018 Peoples R China Zhejiang Prov Key Lab Informat Proc Commun & Netw Hangzhou 310027 Peoples R China
A method based on a sparse auto-encoder (SAE) network for the estimation of spreading sequences in long-code direct-sequence code-division multiple access (LC-DS-CDMA) signals is proposed. First, a network classificat... 详细信息
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Navigation With Cellular CDMA Signals-Part I: Signal Modeling and Software-Defined Receiver Design
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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2018年 第8期66卷 2191-2203页
作者: Khalife, Joe Shamaei, Kimia Kassas, Zaher M. Univ Calif Riverside Dept Elect & Comp Engn Riverside CA 92521 USA
A software-defined receiver (SDR) for navigation using cellular code-division multiple access (CDMA) signals is presented. The cellular forward link signal structure is described, and models for the transmitted and re... 详细信息
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Asynchronous Detection and Identification of multiple Users by Multi-Carrier Modulated Complementary Set of sequences
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IEEE access 2018年 6卷 22054-22069页
作者: Aparicio, Jaoquin Shimura, Takuya Japan Agcy Marine Earth Sci & Technol Dept Engn Geomarine Sci Yokosuka Kanagawa 2370061 Japan
The correct detection of arrivals is a crucial step in any communication system, in order to achieve frame synchronization. This step is even more relevant in underwater acoustic communications, as the medium is chara... 详细信息
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Navigation With Cellular CDMA Signals-Part II: Performance Analysis and Experimental Results
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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2018年 第8期66卷 2204-2218页
作者: Khalife, Joe Kassas, Zaher M. Univ Calif Riverside Dept Elect & Comp Engn Riverside CA 92521 USA
A framework for navigation using cellular code division multiple access (CDMA) signals is studied in this paper. Theoretical lower bounds on the navigation performance using pseudorange measurements drawn from the cel... 详细信息
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Simultaneous Transmission of Biomedical Signals Using DS-CDMA
Simultaneous Transmission of Biomedical Signals Using DS-CDM...
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International Conference on Innovation in Engineering and Technology (ICIET)
作者: Hasan-Uz-Zaman Ashik A. B. M. Aowlad Hossain Dept. of Electronics and Communication Engineering Khulna University of Engineering & Technology Khulna Bangladesh
Telemedicine system requires high speed and secured data transmission. Recent studies in transmission of biomedical signals are mostly based on Bluetooth devices that use Frequency-hopping spread spectrum (FHSS) where... 详细信息
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Multiuser detectors for band-limited direct-sequence code-division multiple-access systems with multitone jamming and generalised-K fading
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IET COMMUNICATIONS 2010年 第17期4卷 2021-2031页
作者: Mehdi, H. Teh, K. C. Li, K. H. Nanyang Technol Univ Sch EEE Singapore 639798 Singapore
In this study, the authors analyse the bit-error rate (BER) performance of band-limited direct-sequence code-division multiple-access (DS-CDMA) systems employing two types of multiuser detectors, namely, linear decorr... 详细信息
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Error probability analysis of multicarrier direct sequence code division multiple access system under imperfect channel estimation and jamming in a Rayleigh fading channel
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IET SIGNAL PROCESSING 2010年 第1期4卷 89-101页
作者: El-Mahdy, A. E. German Univ Fac Informat Engn & Technol Cairo Egypt
The performance of a multicarrier direct sequence code division multiple access (MC-DS-CDMA) system in fading environment has been extensively analysed in the literatures. The analysis that is available in the literat... 详细信息
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Joint transmit/receive one-tap minimum mean square error frequency-domain equalisation for broadband multicode direct-sequence code division multiple access
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IET COMMUNICATIONS 2010年 第14期4卷 1752-1764页
作者: Takeda, K. Adachi, F. Tohoku Univ Grad Sch Engn Dept Elect & Commun Engn Aoba Ku Sendai Miyagi 9808579 Japan
Multicode direct-sequence code division multiple access (DS-CDMA) can flexibly support multimedia services with various data rates simply by changing the code multiplexing order. The use of simple one-tap frequency-do... 详细信息
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