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相关论文: Weighted Selection Combinings for Differential Dec…

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We present a novel multi-channel front-end based on channel shortening with theWeighted Prediction Error (WPE) method followed by a fixed MVDR beamformer used in combination with a recently proposed self-attention-based channel combination…

音频与语音处理 · 电气工程与系统科学 2022-03-29 Dushyant Sharma , Rong Gong , James Fosburgh , Stanislav Yu. Kruchinin , Patrick A. Naylor , Ljubomir Milanovic

Speech dereverberation aims to alleviate the negative impact of late reverberant reflections. The weighted prediction error (WPE) method is a well-established technique known for its superior performance in dereverberation. However, in…

音频与语音处理 · 电气工程与系统科学 2023-12-07 Ziye Yang , Mengfei Zhang , Jie Chen

We introduce a new family of codes, termed weighted superimposed codes (WSCs). This family generalizes the class of Euclidean superimposed codes (ESCs), used in multiuser identification systems. WSCs allow for discriminating all bounded,…

信息论 · 计算机科学 2008-12-18 Wei Dai , Olgica Milenkovic

We consider the full-duplex two-way relay channel with direct link between two users and propose two coding schemes: a partial decode-forward scheme, and a combined decode-forward and compute-forward scheme. Both schemes use rate-splitting…

信息论 · 计算机科学 2011-08-19 Peng Zhong , Mai Vu

In this work, we propose buffer-aided distributed space-time coding (DSTC) schemes and relay selection algorithms for cooperative direct-sequence code-division multiple access (DS-CDMA) systems. We first devise a relay pair selection…

信息论 · 计算机科学 2016-10-04 J. Gu , R. C. de Lamare

This paper deals with distributed beamforming techniques for wireless networks with half-duplex amplify-and-forward relays. Existing schemes optimize the beamforming weights based on the assumption that channel state information (CSI) is…

信息论 · 计算机科学 2016-11-18 Peter Fertl , Ari Hottinen , Gerald Matz

The paper studies the scenario of wireless multicast with a single transmitter and a relay that deliver scalable source symbols to the receivers in a decode-and-forward (DF) fashion. With the end-to-end mean square error distortion (EED) as…

信息论 · 计算机科学 2017-09-05 Z. Chen , P. Ho , L. Peng

In this paper, we contribute to the theoretical understanding, the design, and the performance evaluation of multi-source multi-relay network-coded cooperative diversity protocols. These protocols are useful to counteract the spectral…

信息论 · 计算机科学 2016-11-17 Marco Di Renzo , Michela Iezzi , Fabio Graziosi

"Amplify and Forward" and "Decode and Forward" are the two main relaying functions that have been proposed since the advent of cooperative communication. "\textit{Soft} Decode and Forward" is a recently introduced relaying principle that is…

信息论 · 计算机科学 2012-02-10 Mehdi M. Molu , Norbert Goertz

To achieve the available performance gains in half-duplex wireless relay networks, several cooperative schemes have been earlier proposed using either distributed space-time coding or distributed beamforming for the transmitter without and…

信息论 · 计算机科学 2015-05-13 Javier M. Paredes , Babak H. Khalaj , Alex B. Gershman

In this paper, we investigate a cell-free massive multiple-input multiple-output system with both access points and user equipments equipped with multiple antennas over the Weichselberger Rayleigh fading channel. We study the uplink…

信息论 · 计算机科学 2023-01-09 Zhe Wang , Jiayi Zhang , Hien Quoc Ngo , Bo Ai , Mérouane Debbah

Two-way real-time video communication in wireless networks requires high bandwidth, low delay and error resiliency. This paper addresses these demands by proposing a system with the integration of Network Coding (NC), user cooperation using…

信息论 · 计算机科学 2012-05-16 Xiaozhong Xu , Ozgu Alay , Elza Erkip , Yao Wang , Shivendra Panwar

In this paper, the performance of the selection combining (SC) scheme over Fisher-Snedecor $\mathcal{F}$ fading channels with independent and non-identically distributed (i.n.i.d.) branches is analysed. The probability density function…

信息论 · 计算机科学 2019-05-15 Hussien Al-Hmood , H. S. Al-Raweshidy

Weighted belief propagation (WBP) for the decoding of linear block codes is considered. In WBP, the Tanner graph of the code is unrolled with respect to the iterations of the belief propagation decoder. Then, weights are assigned to the…

信息论 · 计算机科学 2025-07-29 Alireza Tasdighi , Mansoor Yousefi

In this study, we consider the selective combining in hybrid cooperative networks (SCHCNs scheme) with one source node, one destination node and $N$ relay nodes. In the SCHCN scheme, each relay first adaptively chooses between…

信息论 · 计算机科学 2016-02-02 Qiang Huo , Tianxi Liu , Shaohui Sun , Lingyang Song , Bingli Jiao

In this paper, a multi-source multi-relay cooperative wireless network with binary modulation and binary network coding is studied. The system model encompasses: i) a demodulate-and-forward protocol at the relays, where the received packets…

信息论 · 计算机科学 2012-04-24 Marco Di Renzo , Michela Iezzi , Fabio Graziosi

This paper addresses joint transceiver and relay design for a wireless multiple-input-multiple-output (MIMO) switching scheme that enables data exchange among multiple users. Here, a multi-antenna relay linearly precodes the received…

信息论 · 计算机科学 2016-11-18 Fanggang Wang , Xiaojun Yuan , Soung Chang Liew , Dongning Guo

In this paper, an incremental selective decode-and-forward (ISDF) relay strategy is proposed for power line communication (PLC) systems to improve the spectral efficiency. Traditional decode-and-forward (DF) relaying employs two time slots…

信号处理 · 电气工程与系统科学 2018-03-05 A. Dubey , C. Kundu , T. M. N. Ngatched , O. A. Dobre , R. K. Mallik

In this paper, relay selection is considered to enhance security of a cooperative system with multiple threshold-selection decode-and-forward (DF) relays. Threshold-selection DF relays are the relays in which a predefined signal-to-noise…

信号处理 · 电气工程与系统科学 2018-03-05 C. Kundu , T. M. N. Ngatched , O. A. Dobre

Joint network-channel codes (JNCC) can improve the performance of communication in wireless networks, by combining, at the physical layer, the channel codes and the network code as an overall error-correcting code. JNCC is increasingly…

信息论 · 计算机科学 2012-02-15 Dieter Duyck , Michael Heindlmaier , Daniele Capirone , Marc Moeneclaey