Results 51 to 60 of about 2,557 (191)
Simulation analysis of security performance of DPSKOCDMA network via virtual user scheme [PDF]
Maejo International Journal of Science and Technology, 2012 A novel technique to enhance the security of an optical code division multipleaccess (OCDMA) system against eavesdropping is proposed. It has been observed that whena single user is active in the network, an eavesdropper can easily sift the data ...
Vishav Jyoti
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Applied Sciences, 2018 Chromatic and temperature induced dispersion can both severely affect incoherent high data rate communications in optical fibre. This is certainly also true for incoherent optical code division multiple access (OCDMA) systems with multi-wavelength ...
Md Shakil Ahmed, Ivan Glesk
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Integrated Parallel Spectral OCDMA En/Decoder [PDF]
IEEE Photonics Technology Letters, 2007 In this letter, a passive integrated device is presented that enables cost-effective parallel encoding and decoding in a spectral amplitude encoded optical code-division multiple-access transmission system. The device is monolithically integrated in InP-InGaAsP.
Huiszoon, B. +10 more
openaire +2 more sources
Reconfigurable multi-level phase shift keying encoder-decoder for all-optical networks [PDF]
, 2003 We demonstrate the application of a uniform Bragg grating as a dynamically reconfigurable phase encoder-decoder for optical systems. Precise discrete phase modulation between chips is obtained simply by heating segments along the grating with fine ...
M.R. Mokhtar +7 more
core +1 more source
Results in OpticsThis paper introduces a new Interference Suppression Scheme (ISS) for wavelength/time/spatial Optical Code Division Multiple Access (OCDMA) systems, demonstrated through a new 3-D FCC-MDW coding architecture. The 3-D FCC-MDW code offers flexible in-phase
A.J. Rupok +4 more
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Solving the Near-Far Problem in Dynamic Frequency Hopping-Optical Code Division Multiple Access using Power Control [PDF]
Iraqi Journal for Electrical and Electronic Engineering, 2011 In this study, a distributed power control algorithm is proposed for Dynamic Frequency Hopping Optical-CDMA (DFH-OCDMA) system. In general, the DFH-OCDMA can support higher number of simultaneous users compared to other OCDMA techniques.
Wamidh J. M. ALgalbi
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Analysis of hybrid subcarrier multiplexing of OCDMA based on single photodiode detection
EPJ Web of Conferences, 2017 This paper analyzes the performance of subcarrier multiplexing (SCM) of spectral amplitude coding optical code multiple access (SAC-OCDMA) by applying Recursive Combinatorial (RC) code based on single photodiode detection (SPD).
Ahmad N. A. A +4 more
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2-D Optical-CDMA Modulation With Hard-Limiting for Automotive Time-of-Flight LiDAR
IEEE Photonics Journal, 2021 In this proof-of-principle paper, the application of 2-D optical code-division multiple-access (OCDMA) modulation to long-range automotive time-of-flight (ToF) light detection and ranging (LiDAR) is studied.
Feng-Wen Lo +4 more
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New family of multilength multi-wavelength reed-solomon code of OCDMA system
Tongxin xuebao, 2006 A new class of multilength, constant-weight two-dimensional multi-wavelength reed-solomon （2D MW RS） code with large capacity and good correlation properties was constructed.
ZHOU Xiu-li 1, MA Jun-xian2, HU Yu1
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Guangtongxin yanjiu, 2006 构造了一种用于二维同步光码分多址（OCDMA）系统的修正素数跳频码（MPC/PC）,分析了码字的自相关和互相关性能,研究了二维同步OCDMA系统的误码率和吞吐量性能。结果表明,与一维同步OCDMA系统相比,二维同步OCDMA系统的可接入用户数大大增加,误码率大大降低,吞吐量明显提高。
吉建华 +4 more
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