Results 11 to 20 of about 4,812 (181)
Generalized Multicarrier CDMA: Unification and Linear Equalization
EURASIP Journal on Advances in Signal Processing, 2005 Summary: Relying on block-symbol spreading and judicious design of user codes, this paper builds on the generalized multicarrier (GMC) quasisynchronous CDMA system that is capable of multiuser interference (MUI) elimination and intersymbol interference (ISI) suppression with guaranteed symbol recovery, regardless of the wireless frequency-selective ...
Giannakis, Georgios +2 more
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Multicarrier CDMA Overlay for Ultra-Wideband Communications [PDF]
IEEE Transactions on Communications, 2004 In this letter, the performance of multicarrier code-division multiple-access (CDMA) systems is studied in the presence of narrowband interference for future ultra-wideband (UWB) communications. A Nakagami fading channel is assumed, and notch filters along with diversity techniques are used in the multicarrier CDMA receiver.
Wang, JZ, Milstein, LB
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Blind Channel and Data Estimation Using Fuzzy Logic-Empowered Opposite Learning-Based Mutant Particle Swarm Optimization. [PDF]
Comput Intell Neurosci, 2018 Multiple‐input and multiple‐output (MIMO) technology is one of the latest technologies to enhance the capacity of the channel as well as the service quality of the communication system. By using the MIMO technology at the physical layer, the estimation of the data and the channel is performed based on the principle of maximum likelihood.
AsadUllah M +6 more
europepmc +2 more sources
Multicarrier DS/SFH-CDMA systems [PDF]
IEEE Transactions on Vehicular Technology, 2012 published_or_final_version ; Electrical and Electronic Engineering ; Master ; Master of ...
Huang, H, Wang, J
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Optimizing Nonlinear Distortion and Interference in MC‐CDMA Receivers Employing Deep Neural Networks
Mobile Information Systems, Volume 2023, Issue 1, 2023., 2023 Systems that employ multicarrier code division multiple access, commonly known as MC‐CDMA, produce outstanding results in terms of both the performance of the system as a whole and the efficiency with which it uses the spectrum. However, multiple access strategies are susceptible to interference despite their high spectrum efficiency. This work aims to
C. V. Ravikumar +5 more
wiley +1 more source
Journal of Robotics, Volume 2022, Issue 1, 2022., 2022 It is demonstrated that the fully parallel turbo decoding algorithm can achieve an approximate error correction decoding performance when 36 iterations are used and when the log‐map algorithm with 6 iterations is used. By comparison, it is shown that it can achieve much higher decoding rates than the log‐map algorithm for various frame lengths of LTE ...
Yarang Yang, Yunpeng Li, Shan Zhong
wiley +1 more source
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 In orthogonal multiple access (OMA) communication systems, resources are allocated to numerous users based on time, frequency, or code domains. The low bandwidth of the underwater acoustic network limits the number of nodes that can be supported by the OMA system, due to limited resources.
Guohong Gao +6 more
wiley +1 more source
Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022 Wireless spectrum is a limited resource, and the rapid increase in demand for wireless communication‐based services is increasing day by day. Hence, maintaining a good quality of service, high data rate, and reliability is the need of the day. Thus, we need to apportion the available spectrum in an efficient manner.
Muhammad Fahad Munir +5 more
wiley +1 more source
A Survey: Nonorthogonal Multiple Access with Compressed Sensing Multiuser Detection for mMTC
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 One objective of the 5G communication system and beyond is to support massive machine type of communication (mMTC) to propel the fast growth of diverse Internet of Things use cases. The mMTC is aimed at providing connectivity to tens of billions of sensor nodes. The dramatic increase of sensor devices and massive connectivity impose critical challenges
Mehmood Alam +2 more
wiley +1 more source
Filterbank Multicarrier and Multicarrier CDMA for Cognitive Radio Systems [PDF]
2007 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2007 Recent works in cognitive radio (CR) have suggested multicarrier communication based on orthogonal frequency-division multiplexing (OFDM) for CR networks. In this paper, we propose two alternative multicarrier techniques. The first one, filterbank-based OFDM-OQAM (OFDM-offset quadrature amplitude modulation), allows to maximize the secondary users ...
Ehsan Azarnasab +3 more
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