Joint Transceiver Optimization for Two-Way MIMO Relay Systems With MSE Constraints

He, Zhiqiang; Lang, Zhouhao; Rong, Yue; Qu, Sicong

doi:10.1109/lwc.2014.2357814

Cited by 10 publications

(3 citation statements)

References 14 publications

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“…Both transmit and receive BF systems are jointly implemented at relay nodes to maximize the signal to noise interference plus leakage ratio [25]. A novel BF design problem is formulated with energy extraction at the relay nodes, while MSE is minimized under precise power constraints [26]. Total network transmission power is minimized with QoS constraints for a two-way MIMO relay networks with novel transceiver design [27].…”

Section: A Related Workmentioning

confidence: 99%

Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

Ashok

Sudha

2020

IEEE Access

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The use of MIMO networks in wireless communication results in increased data rate but leads to severe interference issues and power losses. Promising beamforming (BF) architecture with Conditional Time split-Energy Extraction (CT-EE) is proposed to maximize the Energy Efficiency while optimizing the Mean Square Error (MSE) and Achievable Sum Rate (ASR). A distributed BF system using Minimum Mean Square Error algorithm is jointly implemented at all cooperating nodes. Energy Extraction (EE) from RF signal at the relay nodes facilitates full connectivity among the users. The signal transmission and EE phases are jointly implemented using time-split architecture, without using fixed pre-assigned time slots. Time split from information decoding to EE phase is done only if the battery life is found to be critical. The paper investigates the scope of bypassing the EE phase after ensuring the required power level. The performance of the proposed architecture is compared with the conventional BF and existing EE methods in terms of MSE, ASR and energy efficiency. The proposed architecture is well suitable to establish uninterrupted connectivity between user nodes which are frequently used and have severe power drain-off issues as they can be a part of natural disaster like flood affected wireless networks.

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Section: A Related Workmentioning

confidence: 99%

Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

Ashok

Sudha

2020

IEEE Access

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“…For same data rate, two-way relaying protocol improves transmission power consumption and spectral than one-way relaying protocol [8]. For this reason, two way relaying protocols have been studied actively to improve performance [9,10]. The relay can be used to decentralize the overload of cell nodes in a heterogeneous UDN system [11].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Relay Selection Scheme by Using Compound Channel

Lee

Paek

et al. 2020

Applied Sciences

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As a cellular network of the fifth generation (5G) is commercialized, mobile devices and data throughput have rapidly increased. According to the spatial density for communication increases, the nodes of cell are overloaded. Therefore, the heterogeneous ultra dense network (UDN) is suggested. Furthermore, the techniques for selecting a relay have been proposed in the Heterogeneous Net (HetNet). The relays are needed to improve communication performance and mitigate overload of nodes. In this paper, an adaptive relay selection scheme is proposed to obtain the diversity gain from multiple relays. To enhance the reliability of communication, the proposed scheme suggests a new algorithm considering outage probability and diversity gain of compound channel. Furthermore, the selected relays use an antenna selection algorithm to improve the channel capacity. Simulation results show that the proposed scheme improves the bit error rate (BER) and the data throughput.

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“…A unified framework has been developed in [5] to optimize the source and relay matrices for a broad class of frequently used objective functions. The impact of mean-squared error (MSE) constraints on two-way MIMO relay systems has been studied in [6]. For a single-user two-way MIMO relay system with multiple parallel relay nodes, a gradient descent based transceiver design algorithm has been proposed in [7].…”

Section: Introductionmentioning

confidence: 99%

Simplified MMSE Precoding Design in Interference Two-Way MIMO Relay Systems

Nguyen

Rong

Nordholm

2016

IEEE Signal Process. Lett.

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Abstract-We investigate the transceiver design for interference two-way amplify-and-forward multiple-input multipleoutput relay communication systems. A novel algorithm with a closed-form solution is developed to optimize the relay precoding matrix based on its optimal structure and a modified transmission power constraint at the relay node. An iterative algorithm is proposed to minimize the sum mean-squared error of the signal waveform estimation. Simulation results demonstrate that the proposed algorithm achieves a better performance-complexity tradeoff compared with existing techniques.

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Joint Transceiver Optimization for Two-Way MIMO Relay Systems With MSE Constraints

Cited by 10 publications

References 14 publications

Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

Uninterrupted Connectivity Using Conditional Time Split Energy Extraction With Beamforming System for Disaster Affected Wireless Networks

Adaptive Relay Selection Scheme by Using Compound Channel

Simplified MMSE Precoding Design in Interference Two-Way MIMO Relay Systems

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