Results 91 to 100 of about 22,554 (188)

Collaborative Integration of Vehicle and Roadside Infrastructure Sensor for Temporal Dependency‐Aware Task Offloading in the Internet of Vehicles

open access: yesInternational Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
With advancements of in‐vehicle computing and Multi‐access Edge Computing (MEC), the Internet of Vehicles (IoV) is increasingly capable of supporting Vehicle‐oriented Edge Intelligence (VEI) applications, such as autonomous driving and Intelligent Transportation Systems (ITSs).
Kaiyue Luo   +4 more
wiley   +1 more source

SCMA Codebook Design

open access: yes, 2014
Multicarrier CDMA is a multiple access scheme in which modulated QAM symbols are spread over OFDMA tones by using a generally complex spreading sequence. Effectively, a QAM symbol is repeated over multiple tones.
Baligh, Hadi   +3 more
core   +1 more source

Resource Allocation for Downlink Multi-Cell OFDMA Cognitive Radio Network Using Hungarian Method [PDF]

open access: yes, 2013
This paper considers the problem of resource allocation for downlink part of an OFDM-based multi-cell cognitive radio network which consists of multiple secondary transmitters and receivers communicating simultaneously in the presence of multiple primary
Forouzan, Nafiseh, Ghorashi, Seyed Ali
core  

Power and Channel Allocation for Non-orthogonal Multiple Access in 5G Systems: Tractability and Computation

open access: yes, 2016
Network capacity calls for significant increase for 5G cellular systems. A promising multi-user access scheme, non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC), is currently under consideration.
Ho, Chin Keong   +3 more
core   +2 more sources

Relay Positions Considering Interference from Other Sub-Channels in OFDMA-Based D2D Group-Casting Systems

open access: yesSensors, 2019
Device-to-device (D2D) communication is a technique for direct communication between devices without going through a base station or other infrastructure.
Minjoong Rim, Eulhyeon Go
doaj   +1 more source

Distributive Stochastic Learning for Delay-Optimal OFDMA Power and Subband Allocation

open access: yes, 2010
In this paper, we consider the distributive queue-aware power and subband allocation design for a delay-optimal OFDMA uplink system with one base station, $K$ users and $N_F$ independent subbands. Each mobile has an uplink queue with heterogeneous packet
Cui, Ying, Lau, Vincent K. N.
core   +2 more sources

A Gain-Computation Enhancements Resource Allocation for Heterogeneous Service Flows in IEEE 802.16 m Mobile Networks

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2012
This paper deals with radio resource allocation in fourth generation (4G) wireless mobile networks based on Orthogonal Frequency Division Multiple Access (OFDMA) as an access method.
Wafa Ben Hassen, Meriem Afif
doaj   +1 more source

An Energy Efficient Multiuser Uplink Transmission Scheme in the Next Generation WLAN for Internet of Things

open access: yesInternational Journal of Distributed Sensor Networks, 2016
This paper proposes a novel and energy efficient Internet of Things (IoT) communication scheme for next generation Wireless Local Area Network (WLAN).
Woojin Ahn   +2 more
doaj   +1 more source

Optimal dynamic subcarrier allocation for dual-band OFDMA-PON supporting integrated fronthaul and backhaul in 5G networks

open access: yesICT Express, 2018
We propose a novel dynamic subcarrier allocation (DSCA) design for dual-band orthogonal frequency division multiple access passive optical network (DB-OFDMA-PON), supporting integrated fronthaul and backhaul services, given their stringent requirements ...
Yazan M. Allawi   +5 more
doaj   +1 more source

Performance Analysis of OFDMA and SC-FDMA

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017
The main challenge in any high-speed digital communication system is how to maximize the data rate with minimizing the bit error rate. Several techniques have been developed to achieve this point.
Muhanned AL-Rawi
doaj   +1 more source

Home - About - Disclaimer - Privacy