Results 41 to 50 of about 418 (202)
Block-Iterative Frequency-Domain Equalizations for SC-IDMA Systems
Journal of Engineering, 2015 In wireless broadband communications using single-carrier interleave division multiple access (SC-IDMA) systems, efficient multiuser detection (MUD) classes that make use of joint hybrid decision feedback equalization (HDFE)/ frequency decision-feedback ...
Salah Awad Salman, Instructor
doaj
AI‐Based Immortality: The Ethical Advantage of the Aretai Approach
AI &Innovation, EarlyView.ABSTRACT The convergence of artificial intelligence, digital identity technologies, and biogerontological ambitions has produced a novel set of philosophical problems that have not yet been adequately addressed within mainstream bioethical discourse. Digital life extension—encompassing AI‐generated avatars, neural data preservation, mind uploading, and
Mirko Daniel Garasic
wiley +1 more source
Journal of Engineering and Sustainable Development, 2009 To improve the BER performance of the DS-CDMA system over a frequency-selective fading channel, the frequency domain equalization (FDE) can be applied, in which one-tap equalization is carried out on each subcarrier component obtained by fast Fourier ...
Maha George Zia, Sameer Akram Dawood
doaj
Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)
The Anatomical Record, EarlyView.Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach +2 more
wiley +1 more source
Incremental refinement of relevance rankings: Balancing relevance depth and scope
Journal of the Association for Information Science and Technology, EarlyView.Abstract Delivering both relevant and topically diverse results is a key challenge in information retrieval (IR). This study introduces a hybrid method that incrementally refines rankings by combining probabilistic topic modeling (latent dirichlet allocation [LDA]) with citation‐based pennant retrieval grounded in Relevance Theory (RT), optimizing for ...
Müge Akbulut, Yaşar Tonta
wiley +1 more source
Equalization Techniques based on Cyclic Prefix in Space Division Multiplexing Systems
Guangtongxin yanjiu【Objective】In Space Division Multiplexing (SDM) system, in order to achieve mode demultiplexing, it is necessary to adopt Multiple Input Multiple Output (MIMO) equalization scheme at the receiving end.
WANG Liuzhu +5 more
doaj
Efficient Frequency-Domain Block Equalization for Mode-Division Multiplexing Systems
PhotonicsIn this paper, an adaptive frequency-domain block equalizer (FDBE) implementing the adaptive moment estimation (Adam) algorithm is proposed for mode-division multiplexing (MDM) optical fiber communication systems. By packing all frequency components into
Yifan Shen +4 more
doaj +1 more source
Reduced Complexity Detection in MIMO Systems with SC-FDE Modulations and Iterative DFE Receivers
Journal of Sensor and Actuator Networks, 2018 This paper considers a Multiple-Input Multiple-Output (MIMO) system with P transmitting and R receiving antennas and different overall noise characteristics on the different receiver antennas (e.g., due to nonlinear effects at the receiver side).
Filipe Casal Ribeiro +4 more
doaj +1 more source
The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory
Astronomische Nachrichten, EarlyView.ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth +20 more
wiley +1 more source