Results 51 to 60 of about 40,503 (307)

IMPROVING THE PERFORMANCE OF AEROMACS BY COOPERATIVE COMMUNICATIONS

, 2011
Cooperative communications have gained in the past years an increasing attention, showing promising outcomes on the performance of the systems. The future airport surface communication system represents a potential candidate for the exploitation of these
Pulini, Paola, Marco Chiani, Paola Pulini, Chiani, Marco   +3 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

On the Achievable Max-Min Rates of Cooperative Power-Domain NOMA Systems

IEEE Access, 2020
The non-orthogonal multiple access (NOMA) schemes, where the users are allowed to share the same time-frequency resource, have recently received a major interest to meet the increasing demands for higher data rates, improved user fairness, and/or lower ...
Saad Al-Ahmadi
doaj   +1 more source

Cooperation in Growing Communities [PDF]

, 2008
As communities grow in size over time from just a few people to hundreds and then thousands, members frequently find that they feel less involved, that the community lacks relevance, and that their trust in the community as a friendly place is gone.
openaire   +1 more source

Distributed convolutional-coded differential space-time block coding for cooperative communications

, 2010
A low complexity distributed coding scheme is proposed for communications over Rayleigh fading channels. Convolutional Coding (CC) assisted Differential Phase-Shift Keying (DPSK) modulation is employed at the source node for conveying the source signals ...
Wang, Yang, Ng, Soon, Soon Xin Ng, Yang Wang, Hanzo, Lajos, Lajos Hanzo   +5 more
core   +1 more source

Cross-Layer Solutions for Cooperative Medium Access Control Protocols [PDF]

, 2010
— Recent studies have shown that designing a Medium Access Control (MAC) protocol combined with a cooperative approach may improve the attainable network throughput, despite reducing the mean packet delay.
Crismani, Alessandro, Alessandro Crismani, Fulvio Babich, Hanzo L., Babich, Fulvio, Hanzo, Lajos, Lajos Hanzo   +6 more
core   +1 more source

Circularly Polarized Red‐NIR Emission With High Dissymmetry Factor From Achiral [Mo6I8(OCOC2F5)6]2− Cluster Anion Embedded in a Bent‐Core Liquid Crystal Host

Advanced Optical Materials, EarlyView.
Associating a chiral bent core liquid crystal molecule, that self‐assembles into helical nanofilaments, with an achiral red‐NIR phosphorescent octahedral molybdenum cluster produces a hybrid material exhibiting efficient red‐NIR circularly polarized emission under UV excitation.
Jeanne Rebours, Shamima Akhter, Md Kamrul Hasan, Serge Paofai, Maria Amela‐Cortes, Marianne Estelle Prévôt, Yann Molard   +6 more
wiley   +1 more source

A Network-Coding Aided Road-Map of Large-Scale Near-Capacity Cooperative Communications

IEEE Access, 2018
In the paper, we present a road-map towards a near-capacity large-scale multi-user cooperativecommunications (NLMC) system, where all the evolution paths converge to the construction of the NLMC system.
Hung Viet Nguyen, Soon Xin Ng, Wei Liang, Pei Xiao, Lajos Hanzo   +4 more
doaj   +1 more source

Joint use of DSRC and C‐V2X for V2X communications in the 5.9 GHz ITS band

IET Intelligent Transport Systems, 2021
Vehicular communications networks form the backbone of cooperative intelligent transport systems to support road safety and infotainment applications amongst users.
Keyvan Ansari
doaj   +1 more source

ECRKQ: Machine Learning-Based Energy-Efficient Clustering and Cooperative Routing for Mobile Underwater Acoustic Sensor Networks

IEEE Access, 2021
The dynamic topology, narrow transmission bandwidth, and limited energy of sensor nodes in mobile underwater acoustic sensor networks (UASNs) pose challenges to design an efficient and robust network for underwater communications.
Jianying Zhu, Yougan Chen, Xiang Sun, Jianming Wu, Zhenwen Liu, Xiaomei Xu   +5 more
doaj   +1 more source