2016, 6(3): 297-304. doi: 10.3934/naco.2016012

A low-complexity zero-forcing Beamformer design for multiuser MIMO systems via a dual gradient method

1. 

Department of Mathematics and Statistics, Curtin University, GPO Box U1987, Perth, WA 6845

2. 

School of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009

Received  March 2015 Revised  September 2016 Published  September 2016

In this paper, we consider the zero-forcing beamforming (ZFBF) under the per-antenna power constraints (PAPC). Our objective is to maximize the minimum user information rate. Traditionally, ZFBF under PAPC with a max-min performance measure can be transformed into a second order cone problem and then solved by applying the interior point method. However, it is expensive to realize this design in practice due to high computational complexity per iteration. An alternative low complexity zero-forcing beamformer design is proposed for MU-MIMO systems by applying a dual gradient method. Different from the step size rule in the literature, a backtracking line search is adopted. A numerical example is provided to show the effectiveness of the proposed method.
Citation: Bin Li, Hai Huyen Dam, Antonio Cantoni. A low-complexity zero-forcing Beamformer design for multiuser MIMO systems via a dual gradient method. Numerical Algebra, Control & Optimization, 2016, 6 (3) : 297-304. doi: 10.3934/naco.2016012
References:
[1]

S. J. Benson, Y. Ye and X. Zhang, Solving large-scale sparese semidefinite programs for combinational optimization,, \emph{SIAM J. Optim.}, 10 (2000), 443.  doi: 10.1137/S1052623497328008.  Google Scholar

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G. Caire and S. Shamai (Shitz), On the achievable throughput of multiatenna Gaussian broadcast channel,, \emph{IEEE Trans. Inf. Theory.}, 49 (2003), 1691.  doi: 10.1109/TIT.2003.813523.  Google Scholar

[4]

H. H. Dam and A. Cantoni, Interior point method for optimum zero-forcing beamforming with per-antenna power constraints and optimal step size,, \emph{Signal Process.}, 106 (2015), 10.   Google Scholar

[5]

K. Karakayali, R. Yates, G. Foschini and R. Valenzuela, Optimal zero-forcing beamforming with per-antenna power constraints,, \emph{IEEE International Symposium on Information Theory}, (2007), 101.   Google Scholar

[6]

S. R. Lee, J. S. Kim, S. H. Moon, H. B. Kong and I. Lee, Zero-forcing beamforming in multiuser MISO downlink systems under per-antenna power constraint and equal-rate metric,, \emph{IEEE Trans. Wireless Commun.}, 12 (2013), 228.   Google Scholar

[7]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A global optimal zero-forcing beamformer esign with signed Power-of-Two coefficients,, \emph{Journal of Industrial and Management Optimization}, 12 (2016), 625.   Google Scholar

[8]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A first-order optimal zero-forcing beamformer design for multiuser MIMO systems via a regularized dual accelerated gradient method,, \emph{IEEE Commun. Lett.}, 19 (2015), 195.   Google Scholar

[9]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas,, \emph{J. Glob. Optim.}, 62 (2015), 877.  doi: 10.1007/s10898-014-0237-4.  Google Scholar

[10]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A primal-dual interior point method for optimal zero-forcing beamformer design under per-antenna power constraints,, \emph{Optim. Lett.}, 8 (2014), 1829.  doi: 10.1007/s11590-013-0673-y.  Google Scholar

[11]

B. Li, C. Z. Wu, H. H. Dam, A. Cantoni and K. L. Teo, A parallel low complexity zero-forcing beamformer design for multiuser MIMO systems via a regularized dual decomposition method,, \emph{IEEE Trans. Signal Process.}, 63 (2015), 4179.  doi: 10.1109/TSP.2015.2437846.  Google Scholar

[12]

H. Suzuki, D. Robertson, N. L. Ratnayake and K. Ziri-Castro, Prediction and measurement of multiuser MIMO-OFDM channel in rural Australia,, \emph{IEEE 75th Vehicular Technology Conference}, (2012), 1.   Google Scholar

[13]

L. Vandenberghe, Lecture Notes: Optimization Methods for Large-Scale Systems,, UCLA, (): 2013.   Google Scholar

[14]

A. Wiesel, Y. C. Eldar and S. Shamai (Shitz), Linear precoding via conic optimizaiton for fixed MIMO receivers,, \emph{IEEE Trans. Signal Process.}, 54 (2006), 161.   Google Scholar

[15]

A. Wiesel, Y. C. Eldar and S. Shamai (Shitz), Zero-forcing precoding and generalized inverses,, \emph{IEEE Trans. Signal Process.}, 56 (2008), 4409.  doi: 10.1109/TSP.2008.924638.  Google Scholar

show all references

References:
[1]

S. J. Benson, Y. Ye and X. Zhang, Solving large-scale sparese semidefinite programs for combinational optimization,, \emph{SIAM J. Optim.}, 10 (2000), 443.  doi: 10.1137/S1052623497328008.  Google Scholar

[2]

S. Boyd and L. Vandenberghe, Covex Optimization,, Cambrige, (2004).  doi: 10.1017/CBO9780511804441.  Google Scholar

[3]

G. Caire and S. Shamai (Shitz), On the achievable throughput of multiatenna Gaussian broadcast channel,, \emph{IEEE Trans. Inf. Theory.}, 49 (2003), 1691.  doi: 10.1109/TIT.2003.813523.  Google Scholar

[4]

H. H. Dam and A. Cantoni, Interior point method for optimum zero-forcing beamforming with per-antenna power constraints and optimal step size,, \emph{Signal Process.}, 106 (2015), 10.   Google Scholar

[5]

K. Karakayali, R. Yates, G. Foschini and R. Valenzuela, Optimal zero-forcing beamforming with per-antenna power constraints,, \emph{IEEE International Symposium on Information Theory}, (2007), 101.   Google Scholar

[6]

S. R. Lee, J. S. Kim, S. H. Moon, H. B. Kong and I. Lee, Zero-forcing beamforming in multiuser MISO downlink systems under per-antenna power constraint and equal-rate metric,, \emph{IEEE Trans. Wireless Commun.}, 12 (2013), 228.   Google Scholar

[7]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A global optimal zero-forcing beamformer esign with signed Power-of-Two coefficients,, \emph{Journal of Industrial and Management Optimization}, 12 (2016), 625.   Google Scholar

[8]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A first-order optimal zero-forcing beamformer design for multiuser MIMO systems via a regularized dual accelerated gradient method,, \emph{IEEE Commun. Lett.}, 19 (2015), 195.   Google Scholar

[9]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, Some interesting properties for zero-forcing beamforming under per-antenna power constraints in rural areas,, \emph{J. Glob. Optim.}, 62 (2015), 877.  doi: 10.1007/s10898-014-0237-4.  Google Scholar

[10]

B. Li, H. H. Dam, A. Cantoni and K. L. Teo, A primal-dual interior point method for optimal zero-forcing beamformer design under per-antenna power constraints,, \emph{Optim. Lett.}, 8 (2014), 1829.  doi: 10.1007/s11590-013-0673-y.  Google Scholar

[11]

B. Li, C. Z. Wu, H. H. Dam, A. Cantoni and K. L. Teo, A parallel low complexity zero-forcing beamformer design for multiuser MIMO systems via a regularized dual decomposition method,, \emph{IEEE Trans. Signal Process.}, 63 (2015), 4179.  doi: 10.1109/TSP.2015.2437846.  Google Scholar

[12]

H. Suzuki, D. Robertson, N. L. Ratnayake and K. Ziri-Castro, Prediction and measurement of multiuser MIMO-OFDM channel in rural Australia,, \emph{IEEE 75th Vehicular Technology Conference}, (2012), 1.   Google Scholar

[13]

L. Vandenberghe, Lecture Notes: Optimization Methods for Large-Scale Systems,, UCLA, (): 2013.   Google Scholar

[14]

A. Wiesel, Y. C. Eldar and S. Shamai (Shitz), Linear precoding via conic optimizaiton for fixed MIMO receivers,, \emph{IEEE Trans. Signal Process.}, 54 (2006), 161.   Google Scholar

[15]

A. Wiesel, Y. C. Eldar and S. Shamai (Shitz), Zero-forcing precoding and generalized inverses,, \emph{IEEE Trans. Signal Process.}, 56 (2008), 4409.  doi: 10.1109/TSP.2008.924638.  Google Scholar

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