Results 81 to 90 of about 12,277 (211)
Location‐Assisted Graph‐Based User Scheduling in Multi‐User MIMO LEO NTN Systems
International Journal of Satellite Communications and Networking, Volume 44, Issue 3, Page 275-287, May/June 2026.ABSTRACT This paper addresses user clustering and scheduling for multi‐user MIMO low Earth orbit nonterrestrial network systems in full frequency reuse. Since the number of on‐ground user terminals is usually much higher than the number of on‐board LEO satellite antennas, user scheduling becomes a fundamental task.
Bilal Ahmad +4 more
wiley +1 more source
Pengaruh Pembobotan Desain Codebook terhadap Kinerja Sistem Sparse Code Multiple Access
Jurnal Nasional Teknik Elektro dan Teknologi InformasiSparse code multiple access (SCMA) dapat mendukung sistem saat terjadi overloading di sisi penerima sehingga meningkatkan efisiensi spektrum sistem dengan merancang mapping symbol dengan tepat. Kinerja SCMA ditentukan dengan codebook yang bersifat sparse
Shilvy Fatma Fitria Rachmawati Fatma +2 more
doaj +1 more source
Advanced Photonics Research, Volume 7, Issue 3, March 2026.This article proposes a deep learning (DL) approach for modeling and optimizing frequency‐doubled radio‐over‐fiber links. By collectively replacing traditional components with DL model, accurate system evaluation is achieved. Moreover, through an end‐to‐end architecture, performance optimization is accomplished.
Difei Shi +3 more
wiley +1 more source
Transmission Performance Research of Digital Modulation Signals in AWGN Channel [PDF]
, 2013 As mainstream of wireless communication system,digital communication system cannot directly transmit digital baseband signals that must be modulated at the sender before being sent into wireless channel.Digital modulation that is using baseband signals ...
Xue, Jianbin, Li, Songbai
core +1 more source
Exploring the Different Preamble Detection Methods Using Wimax Technology with Additive White Gaussian Noise (AWGN) Channel [PDF]
This paper presents a comprehensive study of WiMAX-IEEE 802.16 standards and details a synchronization method for an OFDM communication system within a channel.
Rakesh, Jain, Shreyaskumar, Patel
core +2 more sources
Rudin-Osher-Fatemi Total Variation Denoising using Split Bregman
Image Processing On Line, 2012 Denoising is the problem of removing noise from an image. The most commonly studied case is with additive white Gaussian noise (AWGN), where the observed noisy image f is related to the underlying true image u by f=u+η and η is at each point in space ...
Pascal Getreuer
doaj +1 more source
Quasi-Concavity for Gaussian Multicast Relay Channels
Entropy, 2019 Standard upper and lower bounds on the capacity of relay channels are cut-set (CS), decode-forward (DF), and quantize-forward (QF) rates. For real additive white Gaussian noise (AWGN) multicast relay channels with one source node and one relay node ...
Mohit Thakur, Gerhard Kramer
doaj +1 more source
Feedback Approach for the Relay Channel with Noisy Feedback and Its Security Analysis
EntropyRelay channels capture the essence of several important communication scenarios such as sensor network and satellite communication. In this paper, first, we propose an efficient coding scheme for an additive white Gaussian noise (AWGN) relay channel in ...
Rong Hu, Haonan Zhang, Huan Yang
doaj +1 more source
KomputikaKemajuan teknologi informasi saat ini berperan penting dalam pertukaran informasi yang cepat. Informasi dalam bentuk citra membutuhkan media penyimpanan yang memadai karena ukuran citra yang besar. Sehingga dibutuhkan cara yang efisien yaitu memampatkan
Mahalalila Hayuning Sekarbayu +2 more
doaj +1 more source
Design of LDPC Codes: A Survey and New Results [PDF]
, 2006 This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining (near-)optimal degree distributions for LDPC code ensembles.
Ryan, William E. +11 more
core +1 more source