Robust MMSE Transceiver Design for Nonregenerative Multicasting MIMO Relay Systems

Gopal, Lenin; Rong, Yue; Zang, Zhuquan

doi:10.1109/tvt.2017.2703641

Cited by 15 publications

(13 citation statements)

References 24 publications

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“…The proposed algorithm improves the performance of the existing transceiver design [14]. • This paper extends the existing works in [15]- [18], which consider only a single source node and a single relay node, to systems with multiple source nodes and multiple serial relay nodes. Thus the system model investigated in this paper supports a longer communication range.…”

mentioning

confidence: 69%

“…Such CSI mismatch degrades the performance of the algorithms in [12]- [14], and thus, a more robust transceiver design is needed. The works in [12] and [13] have been extended in [15]- [17] to consider the mismatch between the exact and estimated CSI in the transceiver optimization. This improves the transceiver performance against the channel mismatch.…”

mentioning

confidence: 99%

“…This improves the transceiver performance against the channel mismatch. But the transceiver design algorithms in [15]- [18] are for systems with only one source node and one relay node.…”

mentioning

confidence: 99%

“…Thus, a more general system model is considered in this paper where multiple sources transmit signals simultaneously to multiple destinations by exploiting the broadcasting nature of the wireless channel. • Compared with the existing works [15]- [21], multiple serial relay nodes are considered in this paper which significantly increases the challenges in solving the transceiver optimization problem, as a large number of mutually coupled matrix variables are involved in the optimization problem.…”

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confidence: 99%

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Robust Transceiver Design for Multi-Hop AF MIMO Relay Multicasting From Multiple Sources

Bing

Gopal

Rong

et al. 2021

IEEE Trans. Veh. Technol.

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In this article, the transceiver design optimization problem is investigated for multi-hop multicasting amplifyand-forward (AF) multiple-input multiple-output (MIMO) relay systems, where multiple source nodes broadcast their message to multiple destination nodes via multiple serial relay nodes. Multiple antennas are installed at the sources, relays, and the destination nodes. In the transceiver design, we consider the mismatch between the true and the estimated channel state information (CSI), where the CSI mismatch follows the Gaussian-Kronecker model. A robust transceiver design algorithm is developed to jointly optimize the source, relay, and destination matrices to minimize the maximal weighted mean-squared error (WMSE) of the received message at all destination nodes. In particular, the WMSE is made statistically robust against the CSI mismatch by averaging through the distributions of the true CSI. Moreover, the WMSE decomposition is exploited to reduce the computational complexity of the transceiver optimization. Numerical simulations show a better performance of the proposed robust transceiver design against the channel mismatch.

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mentioning

confidence: 69%

mentioning

confidence: 99%

“…This improves the transceiver performance against the channel mismatch. But the transceiver design algorithms in [15]- [18] are for systems with only one source node and one relay node.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Robust Transceiver Design for Multi-Hop AF MIMO Relay Multicasting From Multiple Sources

Bing

Gopal

Rong

et al. 2021

IEEE Trans. Veh. Technol.

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“…Robust design is addressed in the literature mostly for unicast or relayassisted communications, see e.g. [9], [10]. Only one reference is dealing with robust multicast [11].…”

Section: Introductionmentioning

confidence: 99%

Multi-Cell MIMO Transceiver Design for Mission-Critical Communication

Jagyasi

Coupechoux

Daher³

2019

2019 IEEE Global Communications Conference (GLOBECOM)

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Business and Mission critical communication (MCC) is a major communication paradigm that is used by public agencies, e.g., during emergency situations, or critical infrastructure companies, e.g., airports, transportation, etc. MCC has very stringent requirements in terms of reliability, coverage and should offer group communications. Coordinated Multimedia Multicast/Broadcast single frequency network (MBSFN) is considered as a potential technology for MCC as it benefits from increased coverage and inter-cell interference mitigation. In this paper, we propose multi-input-multi-output (MIMO) multimedia MBSFN system design wherein each base station (BS) of a coordinated cluster multicasts a common message to all the users in a group. We use a greedy algorithm to dynamically form the cluster of synchronized BSs for optimal utilization of resources within an MBSFN. We assume the availability of perfect channel state information (CSI) knowledge and jointly obtain the optimal precoder and receive filters by minimizing the overall sum-meansquare-error (sum-MSE) constrained over the total transmit power. We further extend the proposed design to a robust case by considering the imperfections in available channel knowledge and obtain the transceiver matrices that are resilient to channel errors. We also present both the joint and robust system design for Single-Cell point-to-multipoint (SC-PTM) which is an alternative solution to MBSFN in MCC. Numerical results show the effectiveness of the proposed network architecture for future mission critical communication. Furthermore, the comparison results show that the proposed robust design demonstrate better performance and is resilient to the presence of CSI errors.

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Robust hybrid beamforming designs for full-duplex OFDM millimeter wave systems with imperfect channel estimates

Luo

Liu

et al. 2023

Digital Signal Processing

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Robust MMSE Transceiver Design for Nonregenerative Multicasting MIMO Relay Systems

Cited by 15 publications

References 24 publications

Robust Transceiver Design for Multi-Hop AF MIMO Relay Multicasting From Multiple Sources

Robust Transceiver Design for Multi-Hop AF MIMO Relay Multicasting From Multiple Sources

Multi-Cell MIMO Transceiver Design for Mission-Critical Communication

Robust hybrid beamforming designs for full-duplex OFDM millimeter wave systems with imperfect channel estimates

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