Subcarrier-Chunk Assignment With Power Allocation and Multiple-Rate Constraints for Downlink OFDMA

We consider downlink OFDMA in which users are imposed with different proportional-rate constraints, and a base station would like to maximise user rate over subcarrier assignment (SA) and power allocation (PA). To attain the objective, we propose a chunk-based SA and low-complexity PA algorithms. Numerical results show that the proposed SA and PA can provide higher average minimum achievable rate than the existing schemes while keeping the deviation from the rate constraint small for both single-cell and multi-cell systems with fractional frequency reuse.

[1]  Rui Chang,et al.  Interference coordination and cancellation for 4G networks , 2009, IEEE Communications Magazine.

[2]  Harald Haas,et al.  The Distribution of Path Losses for Uniformly Distributed Nodes in a Circle , 2008, J. Electr. Comput. Eng..

[3]  Haitham S. Hamza,et al.  A Survey on Inter-Cell Interference Coordination Techniques in OFDMA-Based Cellular Networks , 2013, IEEE Communications Surveys & Tutorials.

[4]  Jeffrey G. Andrews,et al.  Adaptive resource allocation in multiuser OFDM systems with proportional rate constraints , 2005, IEEE Transactions on Wireless Communications.

[5]  Bo Hu,et al.  Proportional Resource Allocation with Subcarrier Grouping in OFDM Wireless Systems , 2013, IEEE Communications Letters.

[6]  John M. Cioffi,et al.  Increase in capacity of multiuser OFDM system using dynamic subchannel allocation , 2000, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).

[7]  Jiangzhou Wang,et al.  Chunk-based resource allocation in OFDMA systems - part I: chunk allocation , 2009, IEEE Transactions on Communications.

[8]  Theodore S. Rappaport,et al.  Wireless Communications: Principles and Practice (2nd Edition) by , 2012 .

[9]  Jiangzhou Wang,et al.  Chunk-Based Resource Allocation in OFDMA Systems—Part II: Joint Chunk, Power and Bit Allocation , 2012, IEEE Transactions on Communications.

[10]  Mohamad Assaad,et al.  Optimal Fractional Frequency Reuse (FFR) and resource allocation in multiuser OFDMA system , 2009, 2009 International Conference on Information and Communication Technologies.

[11]  Dacheng Yang,et al.  A Novel Multi-Cell OFDMA System Structure using Fractional Frequency Reuse , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[12]  B.L. Evans,et al.  A low complexity algorithm for proportional resource allocation in OFDMA systems , 2004, IEEE Workshop onSignal Processing Systems, 2004. SIPS 2004..

[13]  Geoffrey Ye Li,et al.  Cross-layer optimization for OFDM wireless networks-part I: theoretical framework , 2005, IEEE Trans. Wirel. Commun..

[14]  Wiroonsak Santipach,et al.  Chunk-based subcarrier assignment with power allocation and rate constraints for downlink OFDMA , 2014, 2014 14th International Symposium on Communications and Information Technologies (ISCIT).

[15]  Jeffrey G. Andrews,et al.  Comparison of Fractional Frequency Reuse Approaches in the OFDMA Cellular Downlink , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.

[16]  Kwang Bok Lee,et al.  Transmit power adaptation for multiuser OFDM systems , 2003, IEEE J. Sel. Areas Commun..