Relay selection and power allocation for cooperative network based on energy pricing

Ke, Feng; Feng, Suili; Zhuang, Hongcheng

doi:10.1109/lcomm.2010.05.100168

Cited by 50 publications

(35 citation statements)

References 7 publications

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“…Each multipath component is work lifetime is the network operation time until the first node exhausts its energy [8] . The other two schemes minimum energy scheme and direct transmission scheme are also evaluated.…”

Section: Evaluationsmentioning

confidence: 99%

“…In [7], a relay selection method is developed for lifetime extension in an amplify-and-forward (AF) cooperative network where the transmission power is subject to a signal-to-noise ratio (SNR) requirement at the destination. In [8], a relay selection and power allocation scheme is proposed for decode-and-forward relay (DF) cooperative network based on energy pricing. In [9], dynamic single relay selection and power allocation schemes are devised to prolong the lifetime of a single-source AF cooperative network.…”

Section: Introductionmentioning

confidence: 99%

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Joint Resource Allocation for Lifetime-aware Cooperative Multi-carrier DF System

Guo

Han

Zhang

et al. 2014

Int. J. Autom. Comput.

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Abstract:In this paper, we study the problem of optimal resource allocation for lifetime maximization in an orthogonal-frequencydivision multiplexing (OFDM) system with decode-and-forward relay. The goal is to minimize total energy cost of the system by jointly optimizing power allocation, subcarrier pairing and relay selection. We present a heuristic solution that is composed of two parts. The first part is an optimal power allocation approach to allocate power to a subcarrier pair of the source and the relay. The second part is a modified Hungarian algorithm to make subcarrier pairing and relay selection. Evaluations show that the presented scheme outperforms other schemes in the total transmitted data and the network lifetime.

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Section: Evaluationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Joint Resource Allocation for Lifetime-aware Cooperative Multi-carrier DF System

Guo

Han

Zhang

et al. 2014

Int. J. Autom. Comput.

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“…The service life of each node of WSN serving as a new selforganizing network is relevant to the life cycle of topology and the entire network because of resource limit, battery power, and other factors, so the energy consumption of the network is the crux of WSN research [1][2][3][4][5]. The characteristics of WSN determine that its primary design objectives are to use the limited energy efficiently and meet a certain quality requirement for service like reliability, real time, and so forth.…”

Section: Introductionmentioning

confidence: 99%

A Wireless Sensor Network Model considering Energy Consumption Balance

Zhou

Wang

et al. 2018

Mathematical Problems in Engineering

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In order to solve the contradiction between service quality and survival time of wireless sensor networks, a new energy consumption balance model is proposed by shuffled frog leaping algorithm (SFLA). In this model, the mathematical expression of energy consumption in the physical layer is given with transmit power at first, received power, and signal bandwidth, and the objective optimization function of energy consumption balance is built by the total sending energy consumption and transmission power of WSN. Secondly, the long-range dependent characteristic of signal is reduced with wavelet neural network, and the objective optimization function above is solved by shuffled frog leaping algorithm. Finally, the performances between this algorithm and others are studied in simulation experiment, and the results show that this algorithm has greater advantages such as the error frame, the number of survival nodes, and the network lifetime.

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“…Much fewer works jointly study power allocation and relay selection. Nevertheless, we notice that Ke et al [17] jointly solved the power-allocation and relay-selection problems using pricing methods where the system had only one user. Ng and Yu [18] presented an extensive study on this joint optimization in cooperative cellular networks where multiple users might exist in the system.…”

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confidence: 99%

Power Allocation for Multiuser Cooperative Communication Networks Under Relay-Selection Degree Bounds

Fang

Lin

Lok

2012

IEEE Trans. Veh. Technol.

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This paper considers the joint power-allocation and relay-selection problems in multiuser cooperative communication networks, where one user can only seek a limited number of relays for cooperation. This relay-selection degree bound is of practical significance. The goal is to optimize the relay selection and power allocation in a distributed manner while respecting certain users' quality-of-service (QoS) requirements. This problem is challenging due to its combinatorial nature, even from a centralized perspective, let alone distributed algorithms (or protocols). For this joint optimization problem with inherent combinatorial nature, this paper resorts to a layering approach. Specifically, the optimal power allocation for a fixed but arbitrary relay-selection configuration is carried out in the physical layer while the relay selection is done in the media access control (MAC) layer. The general idea is to run distributed relay-selection schemes based on a time-reversible Markov chain over a distributed powerallocation algorithm in the physical layer. It turns out that these methods can approximately solve this joint power allocation and the relay-selection problem with a certain performance guarantee. More importantly, the resulting solution can be implemented in a distributed manner. Numerical results are also presented to demonstrate the performance of the algorithms.

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Relay selection and power allocation for cooperative network based on energy pricing

Cited by 50 publications

References 7 publications

Joint Resource Allocation for Lifetime-aware Cooperative Multi-carrier DF System

Joint Resource Allocation for Lifetime-aware Cooperative Multi-carrier DF System

A Wireless Sensor Network Model considering Energy Consumption Balance

Power Allocation for Multiuser Cooperative Communication Networks Under Relay-Selection Degree Bounds

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