Results 41 to 50 of about 51,494 (261)

Space-Time Signal Design for Multilevel Polar Coding in Slow Fading Broadcast Channels

, 2019
Slow fading broadcast channels can model a wide range of applications in wireless networks. Due to delay requirements and the unavailability of the channel state information at the transmitter (CSIT), these channels for many applications are non-ergodic.
Jafarkhani, Hamid, Khoshnevis, Hossein, Marsland, Ian, Yanikomeroglu, Halim   +3 more
core   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Full Duplex AF and DF Relaying Under Channel Estimation Errors for V2V Communications

IEEE Access, 2018
In this paper, we investigate the outage performance of full-duplex (FD) and half-duplex (HD) vehicle to vehicle (V2V) networks. We consider two vehicular communication scenarios with the assistance of roadside unit (RSU), i.e., RSU-to-vehicle-to-vehicle
Siye Wang, Dandi Wang, Chao Li, Wenbo Xu
doaj   +1 more source

Outage Capacity and Optimal Transmission for Dying Channels

, 2009
In wireless networks, communication links may be subject to random fatal impacts: for example, sensor networks under sudden power losses or cognitive radio networks with unpredictable primary user spectrum occupancy.
Cui, Shuguang, Zeng, Meng, Zhang, Rui
core   +1 more source

Minimum common outage probability for the broadcast relay channel [PDF]

2011 7th International Wireless Communications and Mobile Computing Conference, 2011
In this paper the broadcast relay channel (BRC) is studied. In the BRC model, the source communicates with two destinations with the help of a single relay. The minimum common outage probability for four different transmission protocols, direct transmission (DT), multihop (MH), path selection (PS) and link combination with path selection (LCPS) is ...
Isikman, Arif Onder, Yuksel, Melda
openaire   +3 more sources

Outage Probability Analysis of THz Relaying Systems [PDF]

2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020
This paper focuses on quantifying the outage performance of terahertz (THz) relaying systems. In this direction, novel closed-form expressions for the outage probability of a dual-hop relaying system, in which both the source-relay and relay-destination links suffer from fading and stochastic beam misalignment, are extracted.
Boulogeorgos, Alexandros-Apostolos A., Alexiou, Angeliki   +1 more
openaire   +2 more sources

Machine Learning and Artificial Intelligence Techniques for Intelligent Control and Forecasting in Energy Storage‐Based Power Systems

Energy Science &Engineering, EarlyView.
A new energy paradigm assisted by AI. ABSTRACT The tremendous penetration of renewable energy sources and the integration of power electronics components increase the complexity of the operation and power system control. The advancements in Artificial Intelligence and machine learning have demonstrated proficiency in processing tasks requiring ...
Balasundaram Bharaneedharan, Suresh Panchanathan, Chan Choon Kit, Elumalai Perumal Venkatesan, Nasim Hasan   +4 more
wiley   +1 more source

Outage Minimization of Energy Harvesting-Based Relay-Assisted Random Underlay Cognitive Radio Networks With Interference Cancellation

IEEE Access, 2021
This paper incorporates interference cancellation in the outage analysis of a wireless energy harvesting cognitive relay network. Based on an interference threshold, primary receivers are assumed to be able to cancel a fraction of the strongest ...
Oluwatosin Ahmed Amodu, Mohamed Othman, Nor Kamariah Noordin, Idawaty Ahmad   +3 more
doaj   +1 more source

AI‐Driven Optimization of a Hybrid PV–Wind–BESS Microgrid for a Rural Educational Institution in Developing Countries

Energy Science &Engineering, EarlyView.
An AI‐driven CNN–LSTM forecasting framework is integrated with HOMER Pro to optimally design a grid‐connected PV–wind–BESS microgrid for a rural school in Bangladesh, achieving 91.7% renewable penetration, low energy cost (0.0397 USD/kWh), and an 81.5% reduction in CO2 emissions. ABSTRACT Hybrid renewable microgrid planning in HOMER Pro often relies on
Robiul Khan, Md. Wajed Ali, Md. Feroz Ali, Md. Shafiul Alam, Mohammad Ali, Imil Hamda Imran   +5 more
wiley   +1 more source

Patient‐ and caregiver‐reported barriers to radiotherapy for cancer in sub‐Saharan Africa—A survey of population‐based registries

International Journal of Cancer, EarlyView.
What's New? Low‐ and middle‐income countries have over 70% of the global cancer burden but 10% of the world's radiotherapy capacities. This population‐based multi‐country study explores the barriers to access experienced by cancer patients in sub‐Saharan Africa.
Eric Sven Kroeber, Tamara König, Ole Stöter, Biying Liu, Phoebe Mary Amulen, Margaret Borok, Gladys Chesumbai, Eric Chokunonga, Ima‐Obong Ekanem, Mahine Ivanga, Bakarou Kamaté, William Muller, Abidemi Omonisi, Jean‐Félix Peko, Mathewos Assefa, Furaha Serventi, Markus Wallwiener, Mazvita Muchengeti, Pablo Sandro Carvalho Santos, Donald Maxwell Parkin, Eva Johanna Kantelhardt, Nikolaus Christian Simon Mezger   +21 more
wiley   +1 more source