Cross-layer optimization for OFDM wireless networks-part I: theoretical framework
Top Cited Papers
- 4 April 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Wireless Communications
- Vol. 4 (2), 614-624
- https://doi.org/10.1109/twc.2004.843065
Abstract
In this paper, we provide a theoretical framework for cross-layer optimization for orthogonal frequency division multiplexing (OFDM) wireless networks. The utility is used in our study to build a bridge between the physical layer and the media access control (MAC) layer and to balance the efficiency and fairness of wireless resource allocation. We formulate the cross-layer optimization problem as one that maximizes the average utility of all active users subject to certain conditions, which are determined by adaptive resource allocation schemes. We present necessary and sufficient conditions for utility-based optimal subcarrier assignment and power allocation and discuss the convergence properties of optimization. Numerical results demonstrate a significant performance gain for the cross-layer optimization and the gain increases with the number of active users in the networks.Keywords
This publication has 32 references indexed in Scilit:
- Cross-layer optimization for OFDM wireless networks-part II: algorithm developmentIEEE Transactions on Wireless Communications, 2005
- Optimal power allocation over parallel Gaussian broadcast channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- FDMA-based multiuser transmit optimization for broadcast channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Opportunistic beamforming using dumb antennasIEEE Transactions on Information Theory, 2002
- Hierarchical SIR and rate control on the forward link for CDMA data users under delay and error constraintsIEEE Journal on Selected Areas in Communications, 2001
- Beyond 3G: wideband wireless data access based on OFDM and dynamic packet assignmentIEEE Communications Magazine, 2000
- Adaptation techniques in wireless packet data servicesIEEE Communications Magazine, 2000
- Variable-rate variable-power MQAM for fading channelsIEEE Transactions on Communications, 1997
- Microwave Mobile CommunicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1994
- Convex AnalysisPublished by Walter de Gruyter GmbH ,1970