Spatial T-H precoding for packet data systems with scheduling

This paper combines spatial Tomlinson-Harashima (T-H) precoding with packet scheduling at the transmitter to improve the system-level performance of packet data systems. Under the assumptions of instantaneous and perfect channel state information (CSI) at the transmitter and independent and identically distributed (i.i.d.) user channels with flat fading, the spatially equalized and decoupled multiuser channels are shown to be independently faded with distinct orders of diversity. The potential power gain obtained by multiuser scheduling indicates that at medium to high SNR the average total system throughput can be greatly improved with high spatial multiplexing as compared to a single-antenna system.

[1]  Robert W. Heath,et al.  Transmit selection in spatial multiplexing systems , 2002, IEEE Communications Letters.

[2]  David Tse,et al.  Sum capacity of the multiple antenna Gaussian broadcast channel , 2002, Proceedings IEEE International Symposium on Information Theory,.

[3]  David Tse,et al.  Opportunistic beamforming using dumb antennas , 2002, IEEE Trans. Inf. Theory.

[4]  G.D. Forney,et al.  Combined equalization and coding using precoding , 1991, IEEE Communications Magazine.

[5]  Gerard J. Foschini,et al.  Dirty paper coding: Perturbing off the infinite dimensional lattice limit , 2003, Multiantenna Channels: Capacity, Coding and Signal Processing.

[6]  Andrea J. Goldsmith,et al.  On the capacity of multiple input multiple output broadcast channels , 2002, 2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333).

[7]  J. Cioffi,et al.  Achievable rates for Tomlinson-Harashima precoding , 1995, Proceedings of 1995 IEEE International Symposium on Information Theory.

[8]  Robert F. H. Fischer,et al.  MIMO precoding for decentralized receivers , 2002, Proceedings IEEE International Symposium on Information Theory,.

[9]  Shlomo Shamai,et al.  Capacity and lattice strategies for canceling known interference , 2005, IEEE Transactions on Information Theory.

[10]  Max H. M. Costa,et al.  Writing on dirty paper , 1983, IEEE Trans. Inf. Theory.

[11]  H. Miyakawa,et al.  Matched-Transmission Technique for Channels With Intersymbol Interference , 1972, IEEE Trans. Commun..

[12]  A. Jalali,et al.  Data throughput of CDMA-HDR a high efficiency-high data rate personal communication wireless system , 2000, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).

[13]  M. Tomlinson.  New automatic equaliser employing modulo arithmetic , 1971 .

[14]  R. Muirhead.  Aspects of Multivariate Statistical Theory , 1982, Wiley Series in Probability and Statistics.

[15]  G. Ginis,et al.  A multi-user precoding scheme achieving crosstalk cancellation with application to DSL systems , 2000, Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154).

[16]  Gene H. Golub,et al.  Matrix computations , 1983 .

[17]  John M. Cioffi,et al.  On the relation between V-BLAST and the GDFE , 2001, IEEE Communications Letters.

[18]  Shlomo Shamai,et al.  On the achievable throughput of a multiantenna Gaussian broadcast channel , 2003, IEEE Transactions on Information Theory.

[19]  Reinaldo A. Valenzuela,et al.  V-BLAST: an architecture for realizing very high data rates over the rich-scattering wireless channel , 1998, 1998 URSI International Symposium on Signals, Systems, and Electronics. Conference Proceedings (Cat. No.98EX167).