Zobrazeno 1 - 10
of 388
pro vyhledávání: '"bit-error ratio"'
Publikováno v:
Journal of Engineering and Sustainable Development, Vol 28, Iss 4 (2024)
Multiple-input multiple-output (MIMO) technologies use multiple antennas at the sender and the receiver to get the high data rate that the next-generation communication system needs. This paper compares MIMO systems using the Quadrature Phase Shift K
Externí odkaz:
https://doaj.org/article/bda96f038f3e4239be3c103cb071c2af
Autor:
Kavitha G., Deny J.
Publikováno v:
Measurement Science Review, Vol 23, Iss 4, Pp 184-191 (2023)
In the framework of next-generation communication systems, Non-Orthogonal Multiple Access (NOMA) has attracted considerable interest. The fundamental advantage is that it has greater spectrum utilization than its orthogonal equivalents. This proposed
Externí odkaz:
https://doaj.org/article/47817c5cac7c406ebfb2f1db18c6857b
Publikováno v:
Journal of King Saud University: Computer and Information Sciences, Vol 36, Iss 1, Pp 101893- (2024)
The biosensor nano-network consists of mobile nano-nodes, nano-routers and micro-gateways in various levels of hierarchy. In the human body, the energy is harvested by the nano-devices by transforming various forms of energy into electrical energy. S
Externí odkaz:
https://doaj.org/article/74069b69acb74566b0d94a000bce9098
Publikováno v:
IEEE Access, Vol 9, Pp 33091-33101 (2021)
A high-quality data transmission scheme in wireless body area networks is implemented by a joint source-channel coding (JSCC) system with $M$ -ary differential chaos shift keying modulation over an on-body channel. Current DP-LDPC code pairs, which h
Externí odkaz:
https://doaj.org/article/f631367bdb864011897adb7beca9a9c0
Akademický článek
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Akademický článek
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Publikováno v:
Entropy, Vol 25, Iss 2, p 232 (2023)
Recently, a mesh model-based merging (M3) method and four basic graph models were proposed to construct the double protograph low-density parity-check (P-LDPC) code pair of the joint source channel coding (JSCC). Designing the protograph (mother code
Externí odkaz:
https://doaj.org/article/ff6199d3786b467da9197721c4d27af9
Publikováno v:
IEEE Access, Vol 8, Pp 163129-163139 (2020)
The Orbital Angular Momentum (OAM) wireless communication technology has received much attention in recent years for its natural orthogonality between different OAM states. Combining the OAM technology with the Orthogonal Frequency Division Multiplex
Externí odkaz:
https://doaj.org/article/20461ff8f0944476b7e757dfdd1420da
Publikováno v:
IEEE Access, Vol 7, Pp 41690-41701 (2019)
Most studies on optical wireless communications (OWC) have neglected the effect of random orientation in their performance analysis due to the lack of a proper model for the random orientation. Our recent empirical-based research illustrates that the
Externí odkaz:
https://doaj.org/article/628d6a57cf0c472abe35a9a61fd58781
Publikováno v:
Photonics, Vol 9, Iss 3, p 168 (2022)
The bit error ratio (BER) performance of a non-orthogonal multiple access (NOMA) visible light communication (VLC) system is poor due to the unequal distances between adjacent points in the superposition constellation (SC). In this paper, we propose
Externí odkaz:
https://doaj.org/article/7e265173d9ee471087a520f1e8417537