Robust THP Transceiver Design for MIMO Interference Channel

Geng, Xuan; An, Bowen; Liu, Feng; Cao, Fang

doi:10.1109/lcomm.2015.2458963

Cited by 7 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To solve problem ( 28), the long-timescale variables are updated at the end of each frame by solving an approximation problem obtained via replacing the objective function of problem (28) with a quadratic surrogate function. Thus, we introduce the following quadratic surrogate function to approximate the objective function for frame t:…”

Section: B Long-timescale Master Problemmentioning

confidence: 99%

See 1 more Smart Citation

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser mmWave Systems Relying on Tomlinson-Harashima Precoding

Zhao

Niu

et al. 2020

Preprint

View full text Add to dashboard Cite

Hybrid analog-digital (A/D) transceivers designed for millimeter wave (mmWave) systems have received substantial research attention, as a benefit of their lower cost and modest energy consumption compared to their fully-digital counterparts. We further improve their performance by conceiving a Tomlinson-Harashima precoding (THP) based nonlinear joint design for the downlink of multiuser multiple-input multiple-output (MIMO) mmWave systems. Our optimization criterion is that of minimizing the mean square error (MSE) of the system under channel uncertainties subject both to realistic transmit power constraint and to the unit modulus constraint imposed on the elements of the analog beamforming (BF) matrices governing the BF operation in the radio frequency domain. We transform this optimization problem into a more tractable form and develop an efficient block coordinate descent (BCD) based algorithm for solving it. Then, a novel two-timescale nonlinear joint hybrid transceiver design algorithm is developed, which can be viewed as an extension of the BCD-based joint design algorithm for reducing both the channel state information (CSI) signalling overhead and the effects of outdated CSI. Moreover, we determine the near-optimal cancellation order for the THP structure based on the lower bound of the MSE. The proposed algorithms can be guaranteed to converge to a Karush-Kuhn-Tucker (KKT) solution of the original problem. The simulation results demonstrate that our proposed nonlinear joint hybrid transceiver design algorithms significantly outperform the existing linear hybrid transceiver algorithms and approach the performance of the fully-digital transceiver, despite its lower cost and power dissipation.

show abstract

Section: B Long-timescale Master Problemmentioning

confidence: 99%

“…The THP-based nonlinear transceiver algorithms have a remarkable performance gain over their linear counterparts and thus have found numerous applications [28]- [30]. However, determining the optimal cancellation order under the THP structure, which achieves the optimal performance gain is quite a challenge [31].…”

Section: Introductionmentioning

confidence: 99%

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser mmWave Systems Relying on Tomlinson-Harashima Precoding

Zhao

Niu

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…In parallel to the low-complexity linear transceiver structures, more sophisticated nonlinear transceivers, such as the Tomlinson-Harashima precoding (THP) have also evolved from the seminal contributions of [29], [30], leading to powerful spatial-domain MIMO solutions [31]. The THP-based nonlinear transceiver algorithms have a remarkable performance gain over their linear counterparts and thus have found numerous applications [32]- [34]. However, determining the optimal cancellation order under the THP structure, which achieves the optimal performance gain is quite a challenge [35].…”

Section: Introductionmentioning

confidence: 99%

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser Mmwave Systems Relying on Tomlinson-Harashima Precoding

Zhao

Niu

et al. 2021

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

Hybrid analog-digital (A/D) transceivers designed for millimeter wave (mmWave) systems have received substantial research attention, as a benefit of their lower cost and modest energy consumption compared to their fully-digital counterparts. We further improve their performance by conceiving a Tomlinson-Harashima precoding (THP) based nonlinear joint design for the downlink of multiuser multiple-input multipleoutput (MIMO) mmWave systems. Our optimization criterion is that of minimizing the mean square error (MSE) of the system under channel uncertainties subject both to realistic transmit power constraint and to the unit modulus constraint imposed on the elements of the analog beamforming (BF) matrices governing the BF operation in the radio frequency domain. We transform this optimization problem into a more tractable form and develop an efficient block coordinate descent (BCD) based algorithm for solving it. Then, a novel two-timescale nonlinear joint hybrid transceiver design algorithm is developed, which can be viewed as an extension of the BCD-based joint design algorithm for reducing both the channel state information (CSI) signalling overhead and the effects of outdated CSI. Moreover, we determine the near-optimal cancellation order for the THP structure based on the lower bound of the MSE. The proposed algorithms can be guaranteed to converge to a Karush-Kuhn-Tucker (KKT) solution of the original problem. The simulation results demonstrate that our proposed nonlinear joint hybrid transceiver design algorithms significantly outperform the existing linear hybrid transceiver algorithms and approach the performance of the fully-digital transceiver, despite its lower cost and power dissipation.

show abstract

“…Originally, THP has been introduced to avoid intersymbol interference on frequency-selective single-input single-output channels [2,3], but THP has also been applied to spatial multiplexing systems operating over flat channels. Depending on the scenario, one distinguishes between single-user (SU) multiple-input multipleoutput (MIMO) THP, where the both the TX and the RX are equipped with multiple antennas [4][5][6] multi-user (MU) multiple-input single-output (MISO) THP, where a multi-antenna TX sends to several single-antenna RXs [7][8][9][10][11][12][13][14][15][16][17][18]; and MU-MIMO THP, involving a multi-antenna TX sending to several multi-antenna RXs [19][20][21]. Moreover, THP is envisaged also in communication systems providing physical-layer security [22], and for simultaneous wireless information and power transfer (SWIPT) [23].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, THP is envisaged also in communication systems providing physical-layer security [22], and for simultaneous wireless information and power transfer (SWIPT) [23]. To implement THP, the TX requires channel information; whereas in many contributions, perfect channel information is assumed, the design of THP in the presence of imperfect channel information is considered in [4,6,11,16,20,23].…”

Section: Introductionmentioning

confidence: 99%

SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding

Debels

Moeneclaey

2018

J Wireless Com Network

View full text Add to dashboard Cite

Compared to linear precoding, Tomlinson-Harashima precoding (THP) requires less transmit power to eliminate the spatial interference in a multiuser downlink scenario involving a multi-antenna transmitter and geographically separated receivers. However, THP gives rise to certain performance losses, referred to as modulo loss and power loss. Based on the observation that part of the users can omit the modulo operation at the receiver during an entire frame, we present an alternative detector, which reduces the modulo loss compared to the conventional detector. In addition, this contribution compares several existing and novel algorithms for selecting the user ordering and the rotation of the constellations at the transmitter, to increase the SNR at the detector and decrease the modulo loss for the alternative detector. Compared to the better of linear precoding and THP with conventional detector, the optimized alternative detector achieves significant gains (up to about 4 dB) for terrestrial wireless communication, whereas smaller gains (up to about 1 dB) are obtained for multi-beam satellite communication.

show abstract

Robust THP Transceiver Design for MIMO Interference Channel

Cited by 7 publications

References 10 publications

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser mmWave Systems Relying on Tomlinson-Harashima Precoding

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser mmWave Systems Relying on Tomlinson-Harashima Precoding

MIMO-Aided Nonlinear Hybrid Transceiver Design for Multiuser Mmwave Systems Relying on Tomlinson-Harashima Precoding

SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding

Contact Info

Product

Resources

About