Results 11 to 20 of about 214,002 (340)
Variable-Weight Optical Code Division Multiple Access System using Different Detection Schemes
Journal of Telecommunications and Information Technology, 2016 In this paper a Variable Weight OCDMA (VWOCDMA) system using KS code with Direct Decoding (DD), Complementary Subtraction (CS) and AND subtraction detections is proposed.
Saleh Seyedzadeh +2 more
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ORTHOGONAL CHAOTIC VECTORS BASED ON RIKITAKE SYSTEM FOR CODE DIVISION MULTIPLE ACCESS APPLICATIONS
Journal of Engineering and Sustainable Development, 2015 The use of chaotic sequences which have low cross-correlation can be useful for spreading the direct sequence code division multiple access (DS-CDMA) system.
Ali Abd Radhi
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Codebook Code Division Multiple Access Image Steganography
Radioengineering, 2005 In this paper, a new modification of spread spectrum imagesteganography (SSIS) is presented. The proposed modification of SSIShides and recovers a message of substantial length within digital imagewhile maintaining the original image size and dynamic ...
S. Surin, D. Levicky
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Enhanced overloaded code division multiple access for network on chip
IET Computers & Digital Techniques, 2022 The Code‐division multiple access (CDMA) method is commonly used as the network infrastructure in multi‐core chips. One of its advantages is the simultaneous connection of all network components. Another advantage is the constant delay of this method. On
Behnam Vakili, Morteza Gholipour
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IEEE Access, 2020 Sidelobe raising, caused by multipath and multiple-access interference (MAI), hinders the signal detection and time-delay estimation of multicarrier code-division multiple-access (MC-CDMA) signals, which are crucial for localization and tracking ...
Yuyao Shen, Ying Xu
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Design and Implementation of MC-CDMA Technique Using FPGA [PDF]
Engineering and Technology Journal, 2013 Multicarrier Code Division Multiple Access (MC-CDMA) is attractive technique for high speed wireless data transmission; it's a combination of Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA).
il A. H. Hadi, Layla Hattim Abood
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Sparse code multiple access on the generalized frequency division multiplexing
EURASIP Journal on Wireless Communications and Networking, 2020 Recent advances in the communication systems culminated in a new class of multiple access schemes, named non-orthogonal multiple access (NOMA), where the main goal is to increase the spectrum efficiency by overlapping data from different users in a ...
Guilherme P. Aquino, Luciano L. Mendes
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A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks
Journal of Computer Networks and Communications, 2018 A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in monitoring applications has been proposed.
Huda Saleh Abbas +2 more
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SCMA Spectral and Energy Efficiency With QoS
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
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IEEE Access, 2022 Current generation mobile communications require high-quality services. Adopting multiple access (MA) and multi-carrier waveforms potentially enhances the quality of services offered to end-users.
Tewelgn Kebede +4 more
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