Zobrazeno 1 - 10
of 5 520
pro vyhledávání: '"fading channel"'
Publikováno v:
Journal of Communications Software and Systems, Vol 20, Iss 2, Pp 173-185 (2024)
In this paper, an innovative system called grouping frequency-time index modulation-based differential chaos shift keying (GFTIM-DCSK-I) is presented to improve the energy efficiency (EE), spectral efficiency, and data rate of the recently proposed g
Externí odkaz:
https://doaj.org/article/ea0dda33b9dd4583a357ebf9aea59c09
Publikováno v:
Iraqi Journal of Industrial Research, Vol 11, Iss 2 (2024)
Data encryption is an important part of the communication system. The Chaos essential properties, make it a crucial candidate for encryption applications. There is a compromise between complexity and security in previous studies. In this study, high
Externí odkaz:
https://doaj.org/article/bdb9a86fb2ca4a96ac5fde0387df4d51
Autor:
Ilavarasan Tamilarasan, Poongundran Selvaprabhu, Rajeshkumar Venkatesan, Vetriveeran Rajamani, Deepan Nagarajan, Rebekka Balakrishnan
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 9, Pp 102966- (2024)
This paper presents a unified theoretical framework to investigate the performance of an integrated unmanned aerial vehicle (UAV)-backscatter communication (BackComm) system for internet of things (IoT) sensor network applications. In this system, UA
Externí odkaz:
https://doaj.org/article/74dbe434c6c64cc5ae871fe495427b44
Publikováno v:
Journal of ICT Research and Applications, Vol 18, Iss 1 (2024)
The performance of the phase shift keying (PSK) modulation technique over additive white Gaussian noise (AWGN) and multipath propagation channels generally becomes worse for higher-order modes. Therefore, a new modulation technique should be provided
Externí odkaz:
https://doaj.org/article/60f7a3bb9a7e450fac1a46a4b02feb83
Publikováno v:
Engineering and Technology Journal, Vol 42, Iss 2, Pp 288-297 (2024)
Data security is vital if transferred over a wireless network or stored on a personal computer. The essential properties of chaos, such as initial state sensitivity and unpredictability, make it a crucial candidate for encryption applications. This p
Externí odkaz:
https://doaj.org/article/a189ba8e343e4e2096fa878dd0d6ac45
Autor:
Yuki Kuraya, Hideki Ochiai
Publikováno v:
IEEE Open Journal of Vehicular Technology, Vol 5, Pp 1336-1347 (2024)
We propose a new physical layer security scheme for a wiretap channel in polar-coded OFDM-based wireless communication systems. Our approach is based on the adaptive bit channel selection, where the input bit channels of polar code are selected accor
Externí odkaz:
https://doaj.org/article/6580c992562440929e1684bc9225fb52
Publikováno v:
IEEE Access, Vol 12, Pp 138857-138869 (2024)
With the advent of innovative wireless technologies and the rapid growth of diverse connected devices, ensuring communication security has become a critical challenge for the future massively connected beyond 5th generation (B5G) wireless networks. T
Externí odkaz:
https://doaj.org/article/a7955ce2f6854194a9fd832a8309e79f
Autor:
Muhammad Wasif Khan, Jawad Mirza, Waeal J. Obidallah, Mohammed Alkhathami, Deafallah Alsadie, Rawan Alsuwailem
Publikováno v:
IEEE Access, Vol 12, Pp 125920-125930 (2024)
Intelligent Reconfigurable Surface has become a promising technique in recent years due to its inherent ability to overcome the severe wireless fading channel characteristics such as reflection, refraction, scattering, and diffraction, etc. On the ot
Externí odkaz:
https://doaj.org/article/337fd25280114ca2b130eafc9c7db5e4
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 5652-5666 (2024)
This paper proposes a Long Range (LoRa) chirp transmission scheme with multiple transmit and receive antennas. The main goal is to increase the data rate of LoRa using multiple-input multipleoutput (MIMO) spatial multiplexing. Several coherent detect
Externí odkaz:
https://doaj.org/article/a1fa9da62aac4c8b8186a230fd8d3df1
Autor:
Vinay Kumar Chapala, S. M. Zafaruddin
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 5037-5053 (2024)
Existing performance analysis of wireless systems based on reconfigurable intelligent surfaces (RIS) over fading channels has primarily focused on providing statistical insights into the sum and product of random variables, typically represented as a
Externí odkaz:
https://doaj.org/article/f17f6b4c5c034fd7a668dc591ae2e574