Results 31 to 40 of about 4,812 (181)

Research on synchronisation for burst and instantaneous communication in integrated radar and communication

open access: yesThe Journal of Engineering, Volume 2019, Issue 21, Page 7966-7972, November 2019., 2019
Integration of radar and communication (Radcom) is one of the important research areas for multi‐functional integrated radio frequency systems. Most attention has been drawn to the Radcom system based on signal‐sharing, due to its high integration degree.
Xiao‐Bai Li   +3 more
wiley   +1 more source

OSPG‐MAC: An OFDMA‐Based Subcarrier Pregrouping MAC Protocol for Underwater Acoustic Wireless Sensor Networks

open access: yesJournal of Sensors, Volume 2019, Issue 1, 2019., 2019
In underwater acoustic wireless sensor networks (UAWSNs), designing media access control (MAC) protocols is highly challenging because of their significant influence on network performance. It is a great challenge to design suitable MAC protocols for UAWSNs because of the specific characteristics of underwater acoustic channels, such as low ...
Yishan Su   +4 more
wiley   +1 more source

Detection of Signals in MC–CDMA Using a Novel Iterative Block Decision Feedback Equalizer

open access: yesIEEE Access, 2022
This paper presents a technique to mitigate multiple access interference (MAI) in multicarrier code division multiple access (MC-CDMA) wireless communications systems.
Kalapraveen Bagadi   +13 more
doaj   +1 more source

Simulation of MC-DS-CDMA-System Based on: Wavelet and Slantlet Transforms over Wireless Channel

open access: yesمجلة علوم ذي قار, 2019
In this paper two proposed schemes for improving the performance form the Bit Error Rate (BER) view point were proposed for Multicarrier-Direct-Sequence- Code Division Multiple Access (MC-DS-CDMA) system in wireless channel. The conventional MC-DS-CDMA-
Ahmed Abdel Hadi Fadhel
doaj   +4 more sources

Coded Adaptive Linear Precoded Discrete Multitone Over PLC Channel [PDF]

open access: yes, 2008
Discrete multitone modulation (DMT) systems exploit the capabilities of orthogonal subcarriers to cope efficiently with narrowband interference, high frequency attenuations and multipath fadings with the help of simple equalization filters.
Baudais, Jean-Yves   +3 more
core   +5 more sources

Iterative Intercell Interference Cancellation in MIMO Multicell Networks

open access: yesWireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
An iterative intercell interference cancellation algorithm is introduced to improve the receiver performance of uplink transmission in multicell networks. At first, the uplink signal detection is performed independently in each cell according to minimum mean squared error (MMSE) criterion.
Zhengzhen Zhang   +3 more
wiley   +1 more source

Performance of the Smart Antenna Aided Generalized Multicarrier DS-CDMA Downlink using both Time-Domain Spreading and Steered Space-Time Spreading

open access: yes, 2005
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the downlink interference inflicted upon co-channel mobiles ...
Hanzo, L., Hu, B., Yang, L-L.
core   +1 more source

Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding [PDF]

open access: yes, 2007
This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink, as well as employing multi-dimensional Sphere ...
El-Hajjar, M   +4 more
core   +1 more source

Uplink Nonorthogonal Multiple Access Technologies Toward 5G: A Survey

open access: yesWireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
Owing to the superior performance in spectral efficiency, connectivity, and flexibility, nonorthogonal multiple access (NOMA) is recognized as the promising access protocol and is now undergoing the standardization process in 5G. Specifically, dozens of NOMA schemes have been proposed and discussed as the candidate multiple access technologies for the ...
Neng Ye   +4 more
wiley   +1 more source

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