Interference Management with Block Diagonalization for Macro/Femto Coexisting Networks

ETRI Journal

关键词: coexisting networks;    CoMP;    interference mitigation;    Femtocells;   

Others  :  1186361
DOI  :  10.4218/etrij.12.0110.0793

【 摘 要 】

A femtocell is a small cellular base station, typically designed for use in a home or small business. The random deployment of a femtocell has a critical effect on the performance of a macrocell network due to co-channel interference. Utilizing the advantage of a multiple-input multiple-output system, each femto base station (FBS) is able to form a cluster and generates a precoding matrix, which is a modified version of conventional single-cell block diagonalization, in a cooperative manner. Since interference from clustered-FBSs located at the nearby macro user equipment (MUE) is the dominant interference contributor to the coexisting networks, each cluster generates a precoding matrix considering the effects of interference on nearby MUEs. Through simulation, we verify that the proposed algorithm shows better performance respective to both MUE and femto user equipment, in terms of capacity.

   

【 参考文献 】

• [1]V. Chandrasekhar, J. Andrew, and A. Gatherer, “Femtocell Networks: A Survey,” IEEE Commun. Mag., vol. 46, no. 9, Sept. 2008, pp. 59-67.
• [2]Femto Forum, “Interference Management in OFDMA Femtocells,” Mar. 2010. Available: http://www.femtoforum.org
• [3]H. Claussen, “Performance of Macro- and Co-channel Femtocells in a Hierarchical Cell Structure,” Proc. IEEE PIMRC, Sept. 2007.
• [4]3GPP TS32.591, “Telecommunications Management; Home eNode B (HeNB) Operations, Administration, Maintenance and Provisioning (OAM&P); Concepts and Requirements for Type 1 Interface HeNB to HeNB Management System (HeMS).”
• [5]V. Chandrasekhar et al., “Power Control in Two-Tier Femtocell Networks,” IEEE Trans. Wireless Commun., vol. 8, no. 8, Aug. 2009, pp. 4316-4328.
• [6]P. Kulkarni et al., “Radio Resource Management Considerations for LTE Femtocells,” ACM SIGCOMM Computer Commun. Rev., vol. 40, no. 1, Jan. 2010, pp. 26-30.
• [7]N. Arulselvan et al., “Distributed Power Control Mechanisms for HSDPA Femtocells,” Proc. IEEE VTC Spring, 2009.
• [8]S. Rangan, “Femto-Macro Cellular Interference Control with Subband Scheduling and Interference Cancelation.” Available: http://arxiv.org/abs/1007.0507
• [9]S. Vishwanath, N. Jindal, and A. Goldsmith, “Duality, Achievable Rates, and Sum-Rate Capacity of Gaussian MIMO Broadcast Channels,” IEEE Trans. Inf. Theory, vol. 49, no. 10, Oct. 2003, pp. 2658-2668.
• [10]T. Yoo and A. Goldsmith, “On the Optimality of Multiantenna Broadcast Scheduling Using Zero-Forcing Beamforming,” IEEE J. Sel. Areas Commun., vol. 24, no. 3, Mar. 2006, pp. 528-541.
• [11]H.-S. Jo, “Codebook-Based Precoding for SDMA-OFDMA with Spectrum Sharing,” ETRI J., vol. 33, no. 6, Dec. 2011, pp. 831-840.
• [12]H. Long et al., “Improved Wideband Precoding with Arbitrary Subcarrier Grouping in MIMO-OFDM Systems,” ETRI J., vol. 34, no. 1, Feb. 2012, pp. 9-16.
• [13]Q.H. Spencer, A.L. Swindlehurst, and M. Haardt, “Zero-Forcing Methods for Downlink Spatial Multiplexing in Multiuser MIMO Channels,” IEEE Trans. Signal Process., vol. 52, no. 2, Feb. 2004, pp. 461-471.
• [14]Z. Shen et al., “Low Complexity User Selection Algorithms for Multiuser MIMO System with Block Diagonalization,” IEEE Trans. Signal Process., vol. 54, no. 9, Sept. 2006, pp. 3658-3663.
• [15]U. Jang et al., “CoMP-CSB for ICI Nulling with User Selection,” IEEE Trans. Wireless Commun., vol. 10, no. 9, Sept. 2011, pp. 2982-2993.
• [16]J. Zhang et al., “Networked MIMO with Clustered Linear Precoding,” IEEE Trans. Wireless Commun., vol. 8, no. 4, Apr. 2009, pp. 1910-1921.
• [17]D. Gesbert et al, “Cooperative Spatial Multiplexing with Hybrid Channel Knowledge,” Proc. IEEE ICASSP, 2006.
• [18]B.L. Ng et al., “Distributed Downlink Beamforming with Cooperative Base Stations,” IEEE Trans. Inf. Theory, vol. 54, no. 12, 2008, pp. 5491-5499.
• [19]H. Zhang et al., “Asynchronous Interference Mitigation in Cooperative Base Station Systems,” IEEE Trans. Wireless Commun., vol. 7, no. 1, Jan. 2008, pp. 55-65.
• [20]3GPP TS25.996, “Spatial Channel Model for Multiple Input Multiple Output (MIMO) Simulations.”