ADVANTAGES OF OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING IN COMMUNICATIONS SYSTEMS [PDF]
, 2016 The role of the optical transmitter is to generate the optical signal, impose the information bearing signal, and launch the modulated signal into the optical fiber.
Abdourahamane, Ali
core +2 more sources
Graphene-based Solitons for Spatial Division Multiplexed Switching [PDF]
, 2016 Spatial division multiplexing utilizes the directionality of lights propagating k-vector to separate it into distinct spatial directions. Here we show that the anisotropy of orthogonal spatial Solitons propagating in a single Graphene monolayer results in phase-based multiplexing.
arxiv +1 more source
Doppler-Division Multiplexing for MIMO OFDM Joint Sensing and Communications [PDF]
arXiv, 2023 A promising waveform candidate for future joint sensing and communication systems is orthogonal frequencydivision multiplexing (OFDM). For such systems, supporting multiple transmit antennas requires multiplexing methods for the generation of orthogonal transmit signals, where equidistant subcarrier interleaving (ESI) is the most popular multiplexing ...
arxiv
Symbol detection using extreme learning machine network for MU‐SIMO systems
IET Communications, Volume 17, Issue 2, Page 183-196, January 2023., 2023 Abstract This paper focuses on symbol detection for a multi‐user single‐input multiple‐output (MU‐SIMO) uplink using supervised machine learning techniques. An extreme learning machine (ELM) is chosen as the equalizer at the receiver end due to its super‐fast learning ability and minimum training error.
Pialy Biswas, Ranjan K. Mallik
wiley +1 more source
ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING [PDF]
, 2020 Orthogonal frequency division multiplexing (OFDM) is a method of modulation of digital signal ...
Pallavi Goel, Priti Dhama
core
New orbital angular momentum multiplexing strategy: beyond the capacity limit of free-space optical communication [PDF]
arXiv, 2023 Free space optical (FSO) communication can exploit mode-division multiplexing using orthogonal spatial modes of Laguerre Gaussian beams, such as orbital angular momentum (OAM) modes, wherein OAM multiplexing offers potentially infinite information capacity due to the arbitrary quantization of OAM.
arxiv
Communication, sensing, computing and energy harvesting in smart cities
IET Smart Cities, Volume 4, Issue 4, Page 265-274, December 2022., 2022 Abstract A smart city provides diverse services based on real‐time data obtained from different devices deployed in urban areas. These devices are largely battery‐powered and widely placed. Therefore, providing continuous energy to these devices and ensuring their efficient sensing and communications are critical for the wide deployment of smart cities.
Yusha Liu, Kun Yang
wiley +1 more source
Orthogonal chirp division multiplexing for coherent optical fiber communications [PDF]
, 2016 In this paper, we propose an orthogonal chirp division multiplexing (OCDM) technique for coherent optical communication. OCDM is the principle of orthogonally multiplexing a group of linear chirped waveforms for high-speed data communication, achieving ...
Ouyang, Xing, Zhao, Jian
core +1 more source
Orthogonal Frequency Division Multiplexing Timing Synchronization in Multi-Band Orthogonal Frequency Division Multiplexing Ultra-Wideband Systems [PDF]
American Journal of Applied Sciences, 2010 Problem statement: MB-OFDM UWB systems have attractive features and received a great attention. It has the capability of sending/receiving data at rates in access of 100 Mbits sec-1. Owing to the sensitivity of OFDM systems to synchronization errors, a fast synchronization algorithm is required to discern for the start of OFDM symbol.
Aymen M. Karim +2 more
openaire +2 more sources
Orthogonal frequency division multiplexing with power distribution index modulation [PDF]
Electronics Letters, 2020 Orthogonal frequency division multiplexing with index modulation (OFDM‐IM) is a promising multicarrier transmission technique that exploits both conventional modulation and the indices of active subcarriers for data transmission. In this Letter, the authors propose OFDM with power distribution index modulation (OFDM‐PIM) where a unique power ...
A.T. Dogukan, E. Basar
openaire +5 more sources