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

Author

Ke, Feng ; Feng, Suili ; Zhuang, Hongcheng

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

Volume

14

Issue

5

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

396

Lastpage

398

Abstract

In this letter, we propose a relay selection and power allocation scheme for decode-and-forward (DF) cooperative network based on energy pricing. Modeling the nodes of the network as energy sellers, we can derive the optimal power allocation solution between the source node and the relay node by graphic method intuitively and select the optimal relay node according to minimum cost (MIC) criteria. Simulation results show that the lifetime of the cooperative network can be significantly prolonged using the proposed scheme compared with other schemes.

Keywords

optimal systems; power electronics; power engineering computing; radio links; radio networks; decode-and-forward cooperative network; energy pricing; energy sellers; graphic method; minimum cost criteria; optimal power allocation solution; optimal relay node; relay selection; AWGN; Cost function; Decoding; Energy consumption; Error analysis; Microwave integrated circuits; Power system relaying; Pricing; Relays; Wireless sensor networks; Cooperative relaying, decode-and-forward, relay selection, power allocation, pricing;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.05.100168

Filename

5456044