MMSE relaying and power allocation over frequency-selective rayleigh fading channels

Authors:
Tung T. Pham;Ha H. Nguyen;Duy H. N. Nguyen;Hoang D. Tuan
Affiliations:
University of Saskatchewan, Saskatoon, SK, Canada;University of Saskatchewan, Saskatoon, SK, Canada;University of Saskatchewan, Saskatoon, SK, Canada;The University of New South Wales, Sydney, NSW, Australia
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 8
Cited 0

Convex Optimization

Convex Optimization
Performance of Single-Carrier Block Transmissions Over Multipath Fading Channels With Linear Equalization

IEEE Transactions on Signal Processing
Bit and Power Loading for OFDM-Based Three-Node Relaying Communications

IEEE Transactions on Signal Processing - Part II
Practical algorithms for a family of waterfilling solutions

IEEE Transactions on Signal Processing
Power Allocation Schemes for Amplify-and-Forward MIMO-OFDM Relay Links

IEEE Transactions on Wireless Communications
Power control in distributed cooperative OFDMA cellular networks

IEEE Transactions on Wireless Communications - Part 2
Cooperative communications protocol for multiuser OFDM networks

IEEE Transactions on Wireless Communications
Joint optimization of relay strategies and resource allocations in cooperative cellular networks

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper develops an amplify-and-forward relaying technique for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency division multiple-access with frequency-domain equalization technique is employed at both the relay and destination to combat the inter-block and inter-symbol interference caused by multipath propagation. With the assumption that the full channel state information (CSI) is available at the destination, the relay only knows the uplink channels while no CSI is available at the sources, two power allocation schemes are obtained: (i) to minimize the total transmit power at the relay while maintaining the signal-to-interference-plus-noise ratio (SINR) for each user at the destination above a certain level, and (ii) to maximize the worst SINR among all the users subject to a constraint on total relay transmit power. Analysis and simulation results are provided to illustrate the effectiveness of the proposed schemes.