Robust Transceiver Optimization in Downlink Multiuser MIMO Systems with Channel Uncertainty

Vučić, Nikola; Boche, Holger; Shi, Shuhui

doi:10.1109/icc.2008.661

Cited by 29 publications

(43 citation statements)

References 16 publications

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“…Also, the effect of different CSIT uncertainty size δ on the transmit power are studied. From the simulation results, we can observe the superior performance of the proposed THP design compared to the linear design in [16]. By comparing the results for N t = 4, M = 2 and N t = 6, M = 2, we find that the performance gap between the robust linear and the robust THP transceivers reduces when the number of transmit antennas is increased while keeping the number of receive antennas fixed.…”

Section: Simulation Resultsmentioning

confidence: 75%

“…The proposed robust THP design meets the desired MSE costraint with less transmit power compared to the robust linear design. In the third experiment, we compare the performance of the proposed robustt MSE balancing design with THP and the corresponding linear design in [16]. We compare the performance in terms of minmax MSE for different transmit power constraints.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…We compare the performance of the proposed robust THP designs with the robust linear transceiver designs in [16]. The channel fading is modeled as Rayleigh, with the channel matrices H k , 1 ≤ k ≤ M , comprising of independent and identically distributed (i.i.d) samples of a complex Gaussian process with zero mean and unit variance.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In the first experiment, we compare the performance of the proposed THP design with MSE constraints and the linear design in [16], in terms of the total BS transmit power P T = B 2 F for different MSE constraints at the user terminals. The simulation results are shown in Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…An alternate optimization problem is to minimize the total BS transmit power with constraints on the MSE at the user terminals. A linear transceiver design based on this criterion has been reported in [16]. To our knowledge, non-linear transceiver design based on this criterion has not been reported so far.…”

Section: Introductionmentioning

confidence: 99%

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Non-Linear Transceiver Designs with Imperfect CSIT Using Convex Optimization

Ubaidulla

Chockalingam

2009

2009 IEEE Wireless Communications and Networking Conference

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Abstract-In this paper, we consider non-linear transceiver designs for multiuser multi-input multi-output (MIMO) downlink in the presence of imperfections in the channel state information at the transmitter (CSIT). The base station (BS) is equipped with multiple transmit antennas and each user terminal is equipped with multiple receive antennas. The BS employs Tomlinson-Harashima precoding (THP) for inter-user interference pre-cancellation at the transmitter. We investigate robust THP transceiver designs based on the minimization of BS transmit power with mean square error (MSE) constraints, and balancing of MSE among users with a constraint on the total BS transmit power. We show that these design problems can be solved by iterative algorithms, wherein each iteration involves a pair of convex optimization problems. The robustness of the proposed algorithms to imperfections in CSIT is illustrated through simulations.

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Section: Simulation Resultsmentioning

confidence: 75%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Non-Linear Transceiver Designs with Imperfect CSIT Using Convex Optimization

Ubaidulla

Chockalingam

2009

2009 IEEE Wireless Communications and Networking Conference

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Robust linear transceivers for downlink multi-user multiple-input multiple-output systems using second-order cone programming optimisation

Xie

2011

IET Communications

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Robust transceiver design for K-pairs quasi-static MIMO interference channels via semi-definite relaxation

Chiu

Lau

et al. 2010

2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers

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In this paper, we propose a robust transceiver design for the K-pair quasi-static MIMO interference channel. Each transmitter is equipped with M antennas, each receiver is equipped with N antennas, and the k th transmitter sends L k independent data streams to the desired receiver. In the literature, there exist a variety of theoretically promising transceiver designs for the interference channel such as interference alignment-based schemes, which have feasibility and practical limitations. In order to address practical system issues and requirements, we consider a transceiver design that enforces robustness against imperfect channel state information (CSI) as well as fair performance among the users in the interference channel. Specifically, we formulate the transceiver design as an optimization problem to maximize the worst-case signal-to-interference-plus-noise ratio among all users. We devise a low complexity iterative algorithm based on alternative optimization and semi-definite relaxation techniques. Numerical results verify the advantages of incorporating into transceiver design for the interference channel important practical issues such as CSI uncertainty and fairness performance. Index Terms-Interference channel, robust transceiver, imperfect CSI, precoder design, decorrelator design, max-min fair, alternative optimization, semi-definite relaxation. Technology as Professor. His current research interests include robust and delay-sensitive cross-layer scheduling of MIMO/OFDM wireless systems with imperfect channel state information, cooperative and cognitive communications as well as stochastic approximation and Markov Decision Process. Huang Huang received the B.Eng. and M.Eng. (Gold medal) from the Harbin Institute of Technology (HIT) in 2005 and 2007 respectively, all in Electrical Engineering. He is currently a PhD student at the Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology. His recent research interests include cross layer design, interference management in interference network, and embedded system design.

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Robust Transceiver Optimization in Downlink Multiuser MIMO Systems with Channel Uncertainty

Cited by 29 publications

References 16 publications

Non-Linear Transceiver Designs with Imperfect CSIT Using Convex Optimization

Non-Linear Transceiver Designs with Imperfect CSIT Using Convex Optimization

Robust linear transceivers for downlink multi-user multiple-input multiple-output systems using second-order cone programming optimisation

Robust transceiver design for K-pairs quasi-static MIMO interference channels via semi-definite relaxation

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