Results 61 to 70 of about 14,424 (285)
IEEE Access, 2017 Complex wireless transmission systems require multi-dimensional joint statistical techniques for performance evaluation. Here, we first present the exact closed-form results on order statistics of any arbitrary partial sums of gamma random variables with
Sung Sik Nam +2 more
doaj +1 more source
EAI Endorsed Transactions on Mobile Communications and Applications, 2021 This paper studies the outage performance of multihop cognitive relay networks with energy harvesting in underlay paradigms, wherein the secondary users are powered by a dedicated power beacon (PB) have the highest energy level among their power beacons
Nguyen Cong Danh
doaj +1 more source
On the outage performance of SWIPT-NOMA-CRS with imperfect SIC and CSI [PDF]
TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2021 In this paper, a non-orthogonal multiple access based cooperative relaying system (NOMA-CRS) is considered to increase spectral efficiency. Besides, the simultaneous wireless information and power transfer (SWIPT) is proposed for the relay in NOMA-CRS. In SWIPT-NOMA-CRS, three different energy harvesting (EH) protocols, power sharing (PS), time sharing
openaire +3 more sources
Distributed beamforming and power allocation for cooperative networks. [PDF]
, 2008 Cooperative diversity systems rely on using relay nodes to relay copies of transmitted information to the destination such that each copy experiences different channel fading, hence increasing the diversity of the system.
Ding, Zhiguo +2 more
core
Exact Outage Performance Analysis of Amplify-andforward-aware Cooperative NOMA [PDF]
, 2018 In this paper, new radio access scheme that combines Amplify-and-Forward (AF) relaying protocol and non-orthogonal multiple access (NOMA) system is introduced. In particular, different scenarios for fixed power allocation scheme is investigated.
Dinh-Thuan Do, Tu-Trinh T. Nguyen
core +1 more source
The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara +6 more
wiley +1 more source
Performance analysis for reconfigurable intelligent surface assisted downlink NOMA networks
IET Communications, 2022 In this paper, a reconfigurable intelligent surface (RIS) assisted downlink non‐orthogonal multiple access (NOMA) network is considered, where a base station communicates with a pair of users with the assistance of a RIS.
Xianli Gong +4 more
doaj +1 more source
Energy Science &Engineering, EarlyView.By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali +6 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 performance in relay-assisted overlay cognitive radio networks [PDF]
, 2015 This paper investigates outage performance under overlay spectrum mode using relay-assisted network model. Without harming the performance of the primary user (PU), secondary user (SU) makes use of a relay (R) for transmission as a supportive system ...
N.S. Ibrahim +7 more
core +1 more source