نتایج جستجو برای: optimal power allocation

تعداد نتایج: 885445  

Journal: :International Transactions on Electrical Energy Systems 2022

Phasor measurement units (PMUs) are becoming a vital device in wide-area monitoring, operation, and control. The allocation of PMU at each bus will make that directly observable. However, considering the high installation costs, it is not feasible to place bus. Thus, placing PMUs optimal locations extremely important. In this study, Preference Ranking Organization Method for Enrichment Evaluati...

2010
Mahdi Hajiaghayi Min Dong Ben Liang

We study the problem of channel pairing and power allocation in a multi-channel, multi-hop relay network to enhance the end-to-end data rate. OFDM-based relays are used as an illustrative example, and the amplify-andforward and decode-and-forward relaying strategies are considered. Given fixed power allocation to the OFDM subcarriers, we observe that a sorted-SNR subcarrier pairing strategy is ...

2013
G. Chandra Sekhar Shreyans Parakh Aditya K. Jagannatham

In this paper, authors presented a price maximization scheme for optimal orthogonal frequency division for multiple access (OFDMA) subcarrier allocation for wireless video unicast/multicast scenarios. They formulate a pricing based video utility function for H.264 based wireless scalable video streaming, thereby achieving a trade-off between price and QoS fairness. These parametric models for s...

Journal: :EURASIP J. Wireless Comm. and Networking 2011
Jun Wang Oliver Yu Wen Hongyang Chen Shaoqian Li

For multiple-input multiple-output (MIMO) wireless communication system with minimum mean square error (MMSE) detection, a new scheme of power allocation between pilot and data symbols is investigated under MMSE channel estimation in this paper. First, we propose a novel soft-output MMSE MIMO detector by taking into consideration the channel estimation error. Then, through the application of ra...

Flexible AC Transmission Systems (FACTS) controllers with its ability to directly control the power flow can offer great opportunities in modern power system, allowing better and safer operation of transmission network. In this paper, in order to find type, size and location of FACTS devices in a power system a Dedicated Improved Particle Swarm Optimization (DIPSO) algorithm is developed for de...

2013
Yushi Wei Mingyu Fu Jipeng Ning Xingyan Sun

To solve the complex thrust allocation problems of dynamic positioning ship with azimuth thrusters, the quadratic programming thrust allocation and management system was built. The power optimal thrust allocation was formulated as a quadratic programming problem by the linear treatments of inequality constraints and the optimal solution could be found in a finite amount of time. And some influe...

Journal: :Signal Processing 2017
Lei Chen Weixiao Meng Yingbo Hua

This paper addresses power allocation problems for a dual-hop full-duplex multicarrier decode-forward relay system with or without a direct link from the source to the destination. The full-duplex relay has a residual self-interference proportional to its transmitted power. We consider two schemes of decodeforward at the relay: carrier-wise decode-forward (CDF) and group-wise decode-forward (GD...

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