Subcarrier selection and power allocation for amplify-and-forward relaying over OFDM links

Authors:
O. Duval;Z. Hasan;E. Hossain;F. Gagnon;V. K. Bhargava
Affiliations:
École de Technologie Supérieure, Montreal, Quebec, Canada;University of British Columbia;University of Manitoba;École de Technologie Supérieure;University of British Columbia
Venue:
IEEE Transactions on Wireless Communications
Year:
2010

Citing 4
Cited 3

Convex Optimization

Convex Optimization
Bit loading algorithms for cooperative OFDM systems

EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
Bit and Power Loading for OFDM-Based Three-Node Relaying Communications

IEEE Transactions on Signal Processing - Part II
Multiuser OFDM with adaptive subcarrier, bit, and power allocation

IEEE Journal on Selected Areas in Communications

Resource allocation for QOS-aware OFDMA cellular networks with cooperative relaying

WSEAS TRANSACTIONS on COMMUNICATIONS
Fair resource allocation and DF relay selection for multiuser OFDMA-based cooperative networks

Wireless Networks
Joint resource allocation for lifetime-aware cooperative multi-carrier DF system

International Journal of Automation and Computing

Quantified Score

Hi-index	0.01

Visualization

Abstract

We study the end-to-end capacity of a cooperative relaying scheme using OFDM modulation, under power constraints for both the base station and the relay station. The relay uses an amplify-and-forward cooperative relaying technique to retransmit messages on a subset of the available subcarriers. The power used in the base station and the relay station transmitters is allocated in such a manner that the overall system capacity is maximized. The subcarrier selection and power allocation are obtained based on convex optimization formulations and an iterative algorithm. The proposed technique outperforms non-selective relaying schemes over a range of relay power budgets.