Results 61 to 70 of about 1,319,177 (129)

A Deep Q-Learning Method for Downlink Power Allocation in Multi-Cell Networks [PDF]

open access: yesarXiv, 2019
Optimal resource allocation is a fundamental challenge for dense and heterogeneous wireless networks with massive wireless connections. Because of the non-convex nature of the optimization problem, it is computationally demanding to obtain the optimal resource allocation.
arxiv  

Joint Optimization of User Association, Subchannel Allocation, and Power Allocation in Multi-cell Multi-association OFDMA Heterogeneous Networks [PDF]

open access: yesarXiv, 2020
Heterogeneous network is a novel network architecture proposed in Long-Term-Evolution~(LTE), which highly increases the capacity and coverage compared with the conventional networks. However, in order to provide the best services, appropriate resource management must be applied.
arxiv  

Resource Allocation for Multicarrier Rate-Splitting Multiple Access System

open access: yesIEEE Access, 2020
In this article, we investigate the resource allocation problem for the multicarrier rate-splitting multiple access (RSMA) systems. On each subcarrier, messages are non-orthogonal superimposed on the power domain through the one-layer RSMA scheme.
Lihua Li   +3 more
doaj   +1 more source

Joint Resource Allocation for OFDMA based Overlay Cognitive Radio Networks under Stochastic Rate Constraint [PDF]

open access: yesarXiv, 2016
This work presents joint subcarrier, power and bit allocation schemes for multi-user OFDM based overlay cognitive radio under constraints on primary user throughput loss and total secondary user transmitted power. Closed form for expressions for the optimal power and bit allocations are initially derived. Subsequently, optimal and suboptimal algorithms
arxiv  

Research on power fluctuation strategy of hybrid energy storage to suppress wind-photovoltaic hybrid power system

open access: yesEnergy Reports, 2023
In this paper, an adaptive hybrid energy storage power optimal allocation strategy is proposed. The strategy aims to suppress the fluctuation of grid-connected power under different operation conditions and improve the operation reliability of a high ...
Lin Zhang   +3 more
doaj  

On the Power Allocation for Hybrid DF and CF Protocol with Auxiliary Parameter in Fading Relay Channels [PDF]

open access: yesarXiv, 2014
In fading channels, power allocation over channel state may bring a rate increment compared to the fixed constant power mode. Such a rate increment is referred to power allocation gain. It is expected that the power allocation gain varies for different relay protocols.
arxiv  

Optimal Power Allocation Policy over Two Identical Gilbert-Elliott Channels [PDF]

open access: yesarXiv, 2012
We study the fundamental problem of optimal power allocation over two identical Gilbert-Elliott (Binary Markov) communication channels. Our goal is to maximize the expected discounted number of bits transmitted over an infinite time span by judiciously choosing one of the four actions for each time slot: 1) allocating power equally to both channels, 2)
arxiv  

Joint subchannel power allocation for downlink NOMA systems based on quantum carnivorous plant algorithm

open access: yesJournal of King Saud University: Computer and Information Sciences
Currently, most existing research on non-orthogonal multiple access (NOMA) systems converts power allocation into two independent procedures, i.e., inter-subchannel power allocation and intra-subchannel power allocation.
Hongyuan Gao   +3 more
doaj  

Game Theory Based Energy-Aware Uplink Resource Allocation in OFDMA Femtocell Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
Femtocell is a promising technique not only in operator networks but also in having potential applications for industrial wireless sensor networks. In this paper, we investigate energy efficient uplink power control and subchannel allocation in two-tier ...
Jun Zhao   +5 more
doaj   +1 more source

Outage probability based power allocation and relay selection algorithm in cooperative communication

open access: yesTongxin xuebao, 2013
The relay selection and power optimization of multi-relay cooperative communication network under a joint sum power constraint was considered.A low complexity lay selection and power allocation algorithm was also pro-posed in amplify-and-forward ...
Li-yue SUN, Xiao-hui ZHAO, Ming GUO
doaj   +2 more sources

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