Results 31 to 40 of about 480,334 (285)
Optimal Energy-Efficient Power Allocation Scheme with Low Complexity for Distributed Antenna System [PDF]
Radioengineering, 2017 In this paper, by maximizing the energy efficiency (EE), an optimal power allocation scheme is developed for downlink distributed antenna system (DAS).
H. Wang, X. Yu, W. Xu, B. Wen
doaj
Joint Optimal Number of RF chains and Power Allocation for Downlink Massive MIMO Systems
, 2015 This paper investigates the downlink of massive multiple-input multiple-output (MIMO) systems that include a single cell Base Station (BS) equipped with large number of antennas serving multiple users.
Ajib, Wessam, Hamdi, Rami
core +1 more source
Low complexity subcarrier and power allocation algorithm for uplink OFDMA systems [PDF]
, 2013 In this article, we consider the joint subcarrier and power allocation problem for uplink orthogonal frequency division multiple access system with the objective of weighted sum-rate maximization.
Al-Imari, Mohammed +3 more
core +2 more sources
Energy-Efficient Power Allocation in Non-Linear Energy Harvesting Multiple Relay Systems
Algorithms, 2021 In this paper, to maximize the energy efficiency (EE) in the two-hop multi-relay cooperative decoding and forwarding (DF) system for simultaneous wireless information and power transmission (SWIPT), an optimal power allocation algorithm is proposed, in ...
Huifang Pan, Qi Zhu
doaj +1 more source
, 2010 This paper studies optimal bandwidth and power allocation in a cognitive radio network where multiple secondary users (SUs) share the licensed spectrum of a primary user (PU) under fading channels using the frequency division multiple access scheme.
Gong, Xiaowen +2 more
core +1 more source
Enhancing Physical Layer Security in Dual-Hop Multiuser Transmission
, 2016 In this paper, we consider the Physical Layer Security(PLS) problem in orthogonal frequency division multiple access (OFDMA) based dual-hop system which consists of multiple users, multiple amplify and forward relays, and an eavesdropper.
Aman, Waqas +4 more
core +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
IEEE Access, 2020 Singular value decomposition is highly essential to achieve a higher performance in signal processing using massive multiple-input multiple-output (MIMO) systems.
Adeeb Salh +5 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Multicast resource allocation scheme considering source-coding characteristic in OFDM systems
Tongxin xuebao, 2010 Aiming to solve the problem that unicast or conventional multicast was incapable of make full use of the opening for wireless propagation in orthogonal frequency division multiplexing（OFDM） systems,a resource allocation scheme involving several multicast
XU Wen-jun +4 more
doaj +2 more sources