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Advanced Search Results For "FREQUENCY division multiple access"

1 - 10 of 3,366 results for
 "FREQUENCY division multiple access"
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Resource Allocation for OFDM-NOMA Systems under Multiuser Scenarios with Different Speeds.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 3/3/2022, p1-10. 10p.

Abstract:In this paper, we consider an OFDM-NOMA (orthogonal frequency division multiplexing-nonorthogonal multiple access) downlink system, which has multiple subcarriers and multiple users at different locations and speeds from the base station. The goal is t...

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Optimized baseband Nyquist pulse-based PAPR reduction method for SEFDM systems.

Publication Type:Academic Journal

Source(s):Telecommunication Systems. Oct2022, Vol. 81 Issue 2, p289-306. 18p.

Abstract:The optimized Nyquist pulse is used as a baseband signal of spectrally efficient frequency division multiplexing (SEFDM) system, where subcarriers use cyclic forms of the Nyquist pulse to reduce their mutual correlation, the probability of in-phase occ...

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Joint STO and DFO Estimation for SEFDM in Low-Earth-Orbit Satellite Communications.

Publication Type:Academic Journal

Source(s):IEEE Transactions on Aerospace & Electronic Systems. Aug2022, Vol. 58 Issue 4, p3725-3729. 5p.

Abstract:In this article, a joint symbol timing offset (STO) and Doppler frequency offset (DFO) estimation algorithm is proposed for spectrally efficient frequency division multiplexing (SEFDM) system in the downlink of low-earth-orbit (LEO) satellite communica...

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Performance Analysis of WOFDM-WiMAX Integrating Diverse Wavelets for 5G Applications.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 11/1/2021, p1-14. 14p.

Abstract:In the 5th generation (5G) and 6th generation (6G) of wireless mobile telecommunication networks, the requests for an elevated data rate with access to stationary as well as portable customers are going to be overwhelming. Mobile worldwide interoperabi...

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Ergodic Capacity Evaluation of Multi-Hop Decode-and-Forward MIMO-OFDM Relaying Network.

Publication Type:Academic Journal

Source(s):Computers, Materials & Continua. 2021, Vol. 68 Issue 3, p3133-3145. 13p.

Abstract:Spatial diversity plays a significant role in wireless communication systems, including the Fourth Generation (4G) and Fifth Generation (5G) systems, and it is expected to be a fundamental part of the future wireless communication systems as well. The ...

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Physical Layer Performance Modeling of Modern Multicarrier Modulation Techniques.

Publication Type:Academic Journal

Source(s):IEEE Transactions on Communications. Jun2022, Vol. 70 Issue 6, p3725-3741. 17p.

Abstract:The fifth-generation (5G) and beyond standards are being challenged by the diverse requirements of modern use cases. Multicarrier modulation techniques are one of the key components of the physical layer (PHY) design, which has immense potential to imp...

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Range and Doppler reconstruction for sparse frequency agile linear frequency modulation-orthogonal frequency division multiplexing radar.

Publication Type:Academic Journal

Source(s):IET Radar, Sonar & Navigation (Wiley-Blackwell). Jun2022, Vol. 16 Issue 6, p1014-1025. 12p.

Abstract:Sparse frequency agile linear frequency modulation-orthogonal frequency division multiplexing (LFM-OFDM) radar can improve anti-interference ability as well as reduce the sampling rate of the radar system. However, the frequency agility makes it diffic...

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Efficient user-channel pairing with power-domain sum-rate maximization in opportunistic hybrid OFDMA-NOMA IoT systems.

Publication Type:Academic Journal

Source(s):Cluster Computing. Aug2022, Vol. 25 Issue 4, p2501-2514. 14p.

Abstract:Non-orthogonal multiple access (NOMA) along with cognitive radio (CR) have been recently configured as potential solutions to fulfill the extraordinary demands of the fifth generation (5G) and beyond (B5G) networks and support the Internet of Thing (Io...

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Low-Complexity CFO Estimator for Spectrally Efficient Frequency Division Multiplexing System.

Publication Type:Academic Journal

Source(s):IEEE Transactions on Vehicular Technology. Jun2022, Vol. 71 Issue 6, p6762-6766. 5p.

Abstract:In this paper, pilot-based carrier frequency offset (CFO) estimation for spectrally efficient frequency division multiplexing (SEFDM) system is focused in the downlink. Firstly, the designed objective function for CFO estimation is proved to fit parabo...

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Underpinnings of User-Channel Allocation in Non-orthogonal Multiple Access for 5G.

Publication Type:Academic Journal

Source(s):International Journal of Wireless Information Networks. Sep2022, Vol. 29 Issue 3, p365-372. 8p.

Abstract:Non-orthogonal multiple access (NOMA) is a part of 5th generation (5G) communication systems. This article presents the underpinnings and underlying structures of the problem of NOMA user-channel allocation. Unlike the heuristics for NOMA user-channel ...

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