Results 61 to 70 of about 16,015,285 (164)
Controlled Power Cooperative Non Orthogonal Multiple Access Relay Networks
Recent work related to cooperative communication and power allocation has attracted much attention among researchers. This paper compares orthogonal multiple access (OMA), non orthogonal multiple access (NOMA), and cooperative NOMA.
Balyan, Vipin +3 more
core +1 more source
Non-orthogonal multiple access for cellular-connected unmanned aerial vehicles [PDF]
, 2022 Cellular-connected unmanned aerial vehicles (UAVs) have been introduced for 5th Generation (5G) and beyond cellular networks to enable various UAVs’ operations which require real-time and ubiquitous connectivity.
New, Wee Kiat
core
Key technologies of non-orthogonal multiple access for 5G systems
Dianxin kexue, 2019 With the unprecedented increase of mobile data traffic brought by the wide proliferation of smart phones and tablet computers, the non-orthogonal multiple access (NOMA) has attained great attention due to its overloading capability in the case of limited
Yuanyuan DONG +5 more
doaj +2 more sources
Heat Transfer, Volume 55, Issue 1, Page 212-240, January 2026.ABSTRACT This study reviews recent advances in using nanofluids to enhance double‐pipe heat exchanger (DPHE) efficiency. The review examines several types of nanofluids, that is, water‐based graphene oxide and CuO–water nanofluids, assessing their effectiveness under different operating conditions, including inlet temperature and nanoparticle volume ...
Farhan Lafta Rashid +8 more
wiley +1 more source
Non-orthogonal multiple access schemes with partial relay selection [PDF]
, 2017 In this paper, non-orthogonal multiple access (NOMA) in amplify-and-forward relay systems with partial relay selection (PRS) is investigated. More specifically, new exact closed-form expressions for the outage probabilities at two users are derived ...
Vien, Q. +4 more
core +1 more source
Computational Bits Maximization Design of UAV‐Assisted MEC System With FD‐NOMA
IET Communications, Volume 20, Issue 1, January/December 2026.This paper investigates an unmanned aerial vehicle–assisted mobile edge computing system, where computing and communication users coexist. The problem is formulated as a mixed‐integer nonconvex optimization due to the binary nature of channel coefficients.
Shihao Liu +4 more
wiley +1 more source
Hybrid Multiple Access Techniques Performance Analysis Of Dynamic Resource Allocation
Iraqi Journal of Information & Communication TechnologyThe Non-Orthogonal Multiple Access (NOMA) and the Orthogonal Frequency Division Multiple Access (OFDMA) are promising techniques for next-generation wireless systems. Although much attention in the literature considered these techniques, an effective
Raya K. Mohammed, Nasser N. Khamiss
doaj +1 more source
Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]
, 2015 A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya +3 more
core +1 more source
CA‐PPO: Collision‐Aware Reinforcement Learning for Grant‐Free NOMA in Wireless Federated Learning
IET Networks, Volume 15, Issue 1, January/December 2026.This paper proposes a collision‐aware proximal policy optimisation (CA‐PPO) framework for joint clustering and power allocation in grant‐free NOMA–enabled wireless federated learning systems. By explicitly accounting for random access collisions, SIC decoding failures and energy–latency constraints, the proposed approach stabilises learning under ...
Emmanuel Atebawone +5 more
wiley +1 more source
A NOMA-Enhanced Reconfigurable Access Scheme With Device Pairing for M2M Networks
IEEE Access, 2019 This paper aims to address the distinct requirements of machine-to-machine networks, particularly heterogeneity and massive transmissions. To this end, a reconfigurable medium access control with the ability to choose a proper access scheme with the ...
Atoosa Dalili Shoaei +2 more
doaj +1 more source