Articles with "power allocation" as a keyword



Joint Resource Block and Power Allocation for Interference Management in Device to Device Underlay Cellular Networks: A Game Theoretic Approach

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Published in 2017 at "Mobile Networks and Applications"

DOI: 10.1007/s11036-016-0764-y

Abstract: This paper addresses the problem of joint resource block (RB) and uplink transmission power allocation in a Device to Device (D2D) underlay cellular network via a game theoretic approach. In contrast to the majority of… read more here.

Keywords: resource; game theoretic; allocation; power allocation ... See more keywords

A novel approach to fair power allocation for NOMA in visible light communication

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Published in 2024 at "Optical and Quantum Electronics"

DOI: 10.1007/s11082-024-07398-0

Abstract: Achieving fairness in power allocation is crucial for maximizing the performance of Non-Orthogonal Multiple Access (NOMA) systems in Visible Light Communication (VLC). However, existing power allocation methods for NOMA-VLC often struggle to maintain fairness. This… read more here.

Keywords: visible light; noma; power; light communication ... See more keywords

BER minimisation via optimal power allocation and eigenbeamforming in MIMO systems

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Published in 2019 at "Telecommunication Systems"

DOI: 10.1007/s11235-018-0487-4

Abstract: In this contribution, the convex optimisation technique is deployed to optimize the data transmission in MIMO systems operating via eigenbeamforming. Initially, we study three optimal Power Allocation (PA) policies: the first one is used for… read more here.

Keywords: optimal power; mimo systems; power; power allocation ... See more keywords

Power allocation and effective capacity of AF successive relays

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Published in 2018 at "Wireless Networks"

DOI: 10.1007/s11276-016-1380-2

Abstract: In the relay based telecommunications with K relays between the source and destination, $$K+1$$K+1 time or frequency slots are required for a single frame transmission. However, without the relays, only one time or frequency slot… read more here.

Keywords: successive relays; power allocation; effective capacity; capacity ... See more keywords

Robust energy efficiency power allocation for relay-assisted uplink cognitive radio networks

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Published in 2018 at "Wireless Networks"

DOI: 10.1007/s11276-016-1385-x

Abstract: In this paper, we investigate a worst-case robust power allocation scheme to improve energy efficiency (EE) for an amply-and-forward relaying uplink underlay OFDM cognitive radio system with imperfect channel situation information about the channel between… read more here.

Keywords: cognitive radio; power allocation; energy efficiency; power ... See more keywords

Power allocation in cognitive radio networks over Rayleigh-fading channels with hybrid intelligent algorithms

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Published in 2018 at "Wireless Networks"

DOI: 10.1007/s11276-017-1476-3

Abstract: In this paper, we introduce a hybrid strategy which combines pattern search (PS) optimization and genetic algorithm (GA) to address the problem of power allocation in cognitive radio networks. Considering the fluctuating interference thresholds in… read more here.

Keywords: intelligent algorithms; allocation cognitive; power allocation; power ... See more keywords

Resource and power allocation for achieving rate fairness in D2D communications overlaying cellular networks

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Published in 2019 at "Wireless Networks"

DOI: 10.1007/s11276-018-01935-y

Abstract: AbstractThis paper presents a novel resource and power allocation scheme for device-to-device (D2D) communications overlaying cellular networks. The proposed scheme is implemented in two consecutive steps. The first step depends on implementing a vital algorithm… read more here.

Keywords: allocation; scheme; power allocation; rate ... See more keywords

Minimized SER and QOS Based Power Allocation Strategies for Multi HDAF Relay Cooperative Network

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-017-4200-9

Abstract: In this paper, a multi hybrid decode-amplify-forward relay cooperative network with perfect CSI in flat Rayleigh fading channel is considered. Using moment generating function based approach, the closed form of symbol error rate (SER) with… read more here.

Keywords: relay cooperative; power allocation; based power; power ... See more keywords

Joint Relay Selection and Power Allocation for AF Relaying M2M Cooperative System

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-017-4368-z

Abstract: The outage probability (OP) of amplify-and-forward relaying mobile-to-mobile system with relay selection over N-Nakagami fading channels is investigated in this paper. The closed-form expressions for tight lower bound on OP are derived. The power allocation… read more here.

Keywords: relay selection; power allocation; system; power ... See more keywords

Cognitive Bidirectional Buffer-Aided DF Relay Networks: Protocol design and Power Allocation

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-017-4776-0

Abstract: In this paper, we consider bidirectional decode-and-forward buffer-aided relay selection and transmission power allocation schemes for underlay cognitive radio relay networks. First, a low complexity delay-constrained bidirectional relaying protocol is proposed. The proposed protocol maximizes… read more here.

Keywords: relay; power; performance; power allocation ... See more keywords

A comparative study of power allocation strategies used in fuel cell and ultracapacitor hybrid systems

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Published in 2019 at "Energy"

DOI: 10.1016/j.energy.2019.116142

Abstract: The proton exchange membrane fuel cell is a good candidate for the future green transportation. In the vehicle applications, the fuel cell systems are always grouped with other energy storage devices such as the lithium-ion… read more here.

Keywords: fuel; power allocation; fuel cell;