Results 21 to 30 of about 1,285,093 (279)
Green communication via Type-I ARQ: Finite block-length analysis [PDF]
, 2014 This paper studies the effect of optimal power allocation on the performance of communication systems utilizing automatic repeat request (ARQ). Considering Type-I ARQ, the problem is cast as the minimization of the outage probability subject to an ...
Makki, Behrooz +2 more
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Power Allocation Algorithm Minimizing Outage Probability in Cognitive Radio Relay Network [PDF]
Jisuanji gongcheng, 2017 To improve the outage performance of cognitive radio relay network,this paper proposes a power allocation algorithm minimizing outage probability by analyzing the system outage probability and user power allocation conditions.It presents the mathematical
ZHU Chunhua,ZHOU Yuping,CHEN Baoxing,ZHU Quan
doaj +1 more source
JOIV: International Journal on Informatics Visualization, 2022 Underwater Visible light communication (UVLC) is a network communication wirelessly where information is transmitted employing light through visible waves; in this case, the light source comes from a light-emitting diode (LED) as a transmitter underwater.
Luthfi Nur'Adli +2 more
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Energy-efficient power allocation for point-to-point MIMO systems over the rayleigh fading channel [PDF]
, 2012 It is well-established that transmitting at full power is the most spectral-efficient power allocation strategy for point-to-point (P2P) multi-input multi-output (MIMO) systems, however, can this strategy be energy efficient as well?
Héliot, Fabien +2 more
core +1 more source
Sum Capacity for Single-Cell Multi-User Systems with M-Ary Inputs
Entropy, 2017 This paper investigates the sum capacity of a single-cell multi-user system under the constraint that the transmitted signal is adopted from M-ary two-dimensional constellation with equal probability for both uplink, i.e., multiple access channel (MAC ...
Pei Yang +3 more
doaj +1 more source
Simulated Annealing for Resource Allocation in Downlink NOMA Systems in 5G Networks
Applied Sciences, 2021 In this work, we investigate resource allocation and user pairing to improve the system’s Throughput for the downlink non-orthogonal multiple access (NOMA)-based 5G networks.
Osama Abuajwa +2 more
doaj +1 more source
Journal of Applied Mathematics, 2014 In multibeam satellite communication systems it is important to improve the utilization efficiency of the power resources, due to the scarcity of satellite power resources.
Heng Wang +3 more
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Computers, 2023 This paper focuses on downlink power allocation for a cognitive radio-based non-orthogonal multiple access (CR-NOMA) system in a femtocell environment involving device-to-device (D2D) communication. The proposed power allocation scheme employs the greedy
Nahla Nur Elmadina +6 more
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On Resource Allocation in Fading Multiple Access Channels - An Efficient Approximate Projection Approach [PDF]
, 2008 We consider the problem of rate and power allocation in a multiple-access channel. Our objective is to obtain rate and power allocation policies that maximize a general concave utility function of average transmission rates on the information theoretic ...
Eryilmaz, Atilla +3 more
core +3 more sources
Low-Complexity Power Allocation in NOMA Systems With Imperfect SIC for Maximizing Weighted Sum-Rate
IEEE Access, 2019 In this paper, we investigate the power allocation for maximizing weighted sum rate (WSR) in downlink multiple carriers non-orthogonal multiple access (MC-NOMA) systems with imperfect successive interference cancellation (SIC).
Xiaoming Wang +3 more
doaj +1 more source