Detection With Erasure in Relay for Decode-and-Forward Cooperative Communications

Lee, Yinman; Shieh, Hong-Wei

doi:10.1109/tvt.2012.2226482

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…Simulations reveal that in terms of the end-to-end SER performance, the proposed detection with erasure can outperform some signal-to-noise ratio (SNR) threshold-based relaying approaches, and can perform quite similarly as compared with those decoding/ combining methods realised at the destination with the advantage of less CSI exchange. This paper is the extension of our previous work in which only the simple binary phase-shift keying (BPSK) signal in a single-relay environment was considered [20]. Continuing the research, more general settings and important scenarios are investigated.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore the error-propagation phenomenon can be mitigated in a wide range of applications. All these are not examined in the previous publication [20]. 2.…”

Section: Introductionmentioning

confidence: 99%

“…(1) in (20), the destination will make its decision based on the source-destination link only. It is straightforward to see that the SER at the destination employing 4-PAM signals can be written as [22,Eq.…”

mentioning

confidence: 99%

“…3.1.3 End-to-end SER of three-node cooperation network: Summarising all the event probabilities at the relay, (18), (19) and (20), and the corresponding SER at the destination, (21), (23) and (24), the end-to-end SER of the considered three-node cooperation network employing 4-PAM signals can be formulated as…”

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confidence: 99%

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Detection with erasure for error‐propagation mitigation in decode‐and‐forward relaying with general pulse amplitude‐modulated/quadrature amplitude‐modulated signals

Lee

Shieh

2014

IET Communications

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In the research of decode-and-forward (DF) cooperative communications, it is often supposed that the included relay only transmits correctly decoded signals. This simplifies the analysis of DF cooperation. However, in practical circumstances, erroneous messages may be forwarded which makes the decision at the destination even worst. In this study, the authors formulate a special detection way, named 'detection with erasure', to make certain that the relay-forwarded signals are mostly correct. Specifically, whenever the decoded result at the relay falls into some preset 'erasure regions', the relay will not process and transmit it anymore. This effectively prevents the forwarding of erroneous messages. With general pulse amplitude-modulated or squared quadrature amplitude-modulated signals, the authors demonstrate that these erasure regions can be adjusted to minimise the end-to-end symbol error rate (SER). This detection scheme can be extended to be used in the DF cooperation employing multiple relays as well. Simulations reveal that in terms of the end-to-end SER performance, the proposed detection with erasure can outperform some signal-to-noise ratio threshold-based relaying approaches, and can perform quite similarly as compared with those decoding/combining methods realised at the destination with the advantage of less channel state information exchange.

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Section: Introductionmentioning

confidence: 99%

“…Therefore the error-propagation phenomenon can be mitigated in a wide range of applications. All these are not examined in the previous publication [20]. 2.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Detection with erasure for error‐propagation mitigation in decode‐and‐forward relaying with general pulse amplitude‐modulated/quadrature amplitude‐modulated signals

Lee

Shieh

2014

IET Communications

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“…In practice, this situation can be approached by several methods. Detection with erasure is used in [30] to decide when the relay forwards. If the decision variable belongs to an erasure region, the relay remains silent.…”

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confidence: 99%

Regularized WDFDC Receivers for Selective Detect-and-Forward Multi-Relaying Systems

Zhang

Leib

2020

IEEE Open J. Veh. Technol.

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This article considers regularized Weighted Decision Feedback Differential Coherent (WDFDC) receivers for selective Detect-and-Forward multi-relaying systems, operating over fast fading channels. Non-regularized WDFDC receivers have been employed in such One-Way Relay Network (OWRN) with DQPSK modulation, and shown to provide significant performance gains over Conventional Differential Detection (CDD). This paper demonstrates, however, that such non-regularized WDFDC receivers are plagued by a BER increase phenomenon in the high SNR range due to decision feedback error propagation and intermittent transmissions from relays. Because of this effect, the non-regularized WDFDC receivers are unable to provide very low error rates, making them unsuitable for ultra-reliable communication systems. To address this problem, our paper introduces a novel WDFDC receiver based on a regularized linear predictor (RLP) for relay to destination channels. We show that such regularized WDFDC receivers yield significant performance gains over their non-regularized counterparts in the high SNR range, without noticeable degradation at low SNR. Regularized WDFDC receivers on relay to destination links enable OWRN systems to provide very low error rates, making them suitable for ultra-reliable communication over fast fading channels.

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Selective decode-and-forward two-way relay network with weighted decision-feedback differential coherent detectors

Zhang

Leib

2016

2016 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)

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Detection With Erasure in Relay for Decode-and-Forward Cooperative Communications

Cited by 6 publications

References 17 publications

Detection with erasure for error‐propagation mitigation in decode‐and‐forward relaying with general pulse amplitude‐modulated/quadrature amplitude‐modulated signals

Detection with erasure for error‐propagation mitigation in decode‐and‐forward relaying with general pulse amplitude‐modulated/quadrature amplitude‐modulated signals

Regularized WDFDC Receivers for Selective Detect-and-Forward Multi-Relaying Systems

Selective decode-and-forward two-way relay network with weighted decision-feedback differential coherent detectors

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