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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 3/2014

01.12.2014

Cooperative Subcarrier Allocation and Power Allocation in the Downlink of an Amplify-and-Forward OFDM Relaying System

verfasst von: H. Rasouli, H. Y. Kong, A. Anpalagan

Erschienen in: Wireless Personal Communications | Ausgabe 3/2014

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Abstract

The increasing use of relays in wireless communication systems is a driving force to explore innovative techniques that can improve the quality of service as well as enhance the coverage in wireless systems. In this article, we propose a two-step approach for subcarrier allocation and power allocation in the downlink of an OFDM-based amplify-and forward relaying system. In the first step, the total power is allocated to mobile users and relays based on the optimum power ratio derived for the single-relay system. In the second step, subcarriers are assigned to the users based on cooperative subcarrier allocation algorithms. Compared to the non-cooperative algorithm with flat power allocation, the total throughput is shown to improve by applying the two-step cooperative subcarrier allocation and power allocation algorithms.
Vorheriger Artikel Mobility Models and their Affect on Data Aggregation and Dissemination in Vehicular Networks
Nächster Artikel Channel Estimation in Long Term Evolution Uplink Using Minimum Mean Square Error-Support Vector Regression

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Metadaten
Titel
Cooperative Subcarrier Allocation and Power Allocation in the Downlink of an Amplify-and-Forward OFDM Relaying System
verfasst von
H. Rasouli
H. Y. Kong
A. Anpalagan
Publikationsdatum
01.12.2014
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 3/2014
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-014-1984-8

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