On antenna calibration for the TDD-based network MIMO system

Antenna calibration to enhance the channel reciprocity between the uplink and downlink channels is necessary for the practical wireless system operating in the time division duplexing (TDD) mode. This paper investigates on the computation of the antenna calibration coefficients of the cooperative base stations' antennas in the network multiple-input and multiple-output (MIMO) system. An efficient scheme for computing the calibration coefficients for an arbitrary number of distributed antennas is proposed. In addition, we also propose two methods of refining the calibration coefficients for the proposed scheme. The evaluations of the proposed scheme and methods are performed through computer simulations.

[1]  Wilhelm Keusgen,et al.  Investigation of front-end requirements for MIMO-systems using downlink pre-distortion , 2003 .

[2]  Jing Shi,et al.  An efficient method for enhancing TDD over the air reciprocity calibration , 2011, 2011 IEEE Wireless Communications and Networking Conference.

[3]  Jiann-Ching Guey,et al.  Modeling and evaluation of MIMO systems exploiting channel reciprocity in TDD mode , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[4]  Hugo De Man,et al.  On the impact of multi-antenna RF transceivers' amplitude and phase mismatches on transmit MRC , 2005, Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005..

[5]  Yoshitaka Hara,et al.  Antenna Array Calibration Using Frequency Selection in OFDMA/TDD Systems , 2008, IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference.

[6]  Wei Yu,et al.  Multi-Cell MIMO Cooperative Networks: A New Look at Interference , 2010, IEEE Journal on Selected Areas in Communications.

[7]  Kentaro Nishimori,et al.  Automatic calibration method using transmitting signals of an adaptive array for TDD systems , 2001, IEEE Trans. Veh. Technol..

[8]  N. Khaled,et al.  Non-reciprocal transceivers in OFDM/SDMA systems: impact and mitigation , 2003, Radio and Wireless Conference, 2003. RAWCON '03. Proceedings.

[9]  Reinaldo A. Valenzuela,et al.  Network coordination for spectrally efficient communications in cellular systems , 2006, IEEE Wireless Communications.

[10]  Raymond Knopp,et al.  A practical method for wireless channel reciprocity exploitation through relative calibration , 2005, Proceedings of the Eighth International Symposium on Signal Processing and Its Applications, 2005..