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The design of highly scalable multiple access schemes is a main challenge in the evolution towards future massive machine-type communications, where reliability and latency constraints must be ensured to a large number of uncoordinated…

信息论 · 计算机科学 2022-03-01 Lorenzo Valentini , Alberto Faedi , Marco Chiani , Enrico Paolini

We consider a full-duplex decode-and-forward system, where the wirelessly powered relay employs the time-switching protocol to receive power from the source and then transmit information to the destination. It is assumed that the relay node…

信息论 · 计算机科学 2016-11-15 Mohammadali Mohammadi , Himal A. Suraweera , Gan Zheng , Caijun Zhong , Ioannis Krikidis

In this letter, we proposed a shared-antenna full-duplex massive MIMO model for the multiuser MIMO system. This model exploits a single antenna array at the base station (BS) to transmit and receive the signals simultaneously. It has the…

信息论 · 计算机科学 2015-10-02 Pengbo Xing , Ju Liu , Chao Zhai , Xinhua Wang , Lina Zheng

Acoustic Echo Cancellation (AEC) plays a key role in voice interaction. Due to the explicit mathematical principle and intelligent nature to accommodate conditions, adaptive filters with different types of implementations are always used…

声音 · 计算机科学 2020-05-20 Lu Ma , Hua Huang , Pei Zhao , Tengrong Su

In this paper, we employ Cooperative Rate-Splitting (CRS) technique to enhance the Secrecy Sum Rate (SSR) for the Multiple Input Single Output (MISO) Broadcast Channel (BC), consisting of two legitimate users and one eavesdropper, with…

信号处理 · 电气工程与系统科学 2020-06-05 Ping Li , Ming Chen , Yijie Mao , Zhaohui Yang , Bruno Clerckx , Mohammad Shikh-Bahaei

Radio frequency (RF) chain circuits play a major role in digital receiver architectures, allowing passband communication signals to be processed in baseband. When operating at high frequencies, these circuits tend to be costly. This…

信号处理 · 电气工程与系统科学 2020-12-30 Tierui Gong , Nir Shlezinger , Shahar Stein Ioushua , Moshe Namer , Zhijia Yang , Yonina C. Eldar

Full duplex (FD) communications has the potential to double the capacity of a half duplex (HD) system at the link level. However, FD operation increases the aggregate interference on each communication link, which limits the capacity…

网络与互联网体系结构 · 计算机科学 2015-10-01 Sanjay Goyal , Pei Liu , Shivendra Panwar , Rui Yang , Robert A. DiFazio , Erdem Bala

This paper addresses the modeling and digital cancellation of self-interference in in-band full-duplex (FD) transceivers with multiple transmit and receive antennas. The self-interference modeling and the proposed nonlinear spatio-temporal…

信息论 · 计算机科学 2014-10-14 Lauri Anttila , Dani Korpi , Emilio Antonio-Rodríguez , Risto Wichman , Mikko Valkama

The increasingly demanding objectives for next generation wireless communications have spurred recent research activities on multi-antenna transceiver hardware architectures and relevant intelligent communication schemes. Among them belong…

信息论 · 计算机科学 2022-05-18 George C. Alexandropoulos , Md Atiqul Islam , Besma Smida

This paper introduces a dual-signal transformation LSTM network (DTLN) for real-time speech enhancement as part of the Deep Noise Suppression Challenge (DNS-Challenge). This approach combines a short-time Fourier transform (STFT) and a…

音频与语音处理 · 电气工程与系统科学 2020-10-23 Nils L. Westhausen , Bernd T. Meyer

Full duplex communication promises a paradigm shift in wireless networks by allowing simultaneous packet transmission and reception within the same channel. While recent prototypes indicate the feasibility of this concept, there is a lack…

网络与互联网体系结构 · 计算机科学 2015-12-15 Rahman Doost-Mohammady , M. Yousof Naderi , Kaushik Roy Chowdhury

In this paper, we present the ergodic sum secrecy rate (ESSR) analysis of an underlay spectrum sharing non-orthogonal multiple access (NOMA) system. We consider the scenario where the power transmitted by the secondary transmitter (ST) is…

信息论 · 计算机科学 2021-05-18 Vaibhav Kumar , Mark F. Flanagan , Daniel Benevides da Costa , Le-Nam Tran

This paper studies secrecy rate optimization in a wireless network with a single-antenna source, a multi-antenna destination and a multi-antenna eavesdropper. This is an unfavorable scenario for secrecy performance as the system is…

信息论 · 计算机科学 2016-08-24 Gan Zheng , Ioannis Krikidis , Jiangyuan Li , Athina P. Petropulu , Bjorn Ottersten

Will Multi-Link Operation (MLO) be able to improve the latency of Wi-Fi networks? MLO is one of the most disruptive MAC-layer techniques included in the IEEE 802.11be amendment. It allows a device to use multiple radios simultaneously and…

网络与互联网体系结构 · 计算机科学 2021-11-19 Marc Carrascosa , Giovanni Geraci , Edward Knightly , Boris Bellalta

In this work, we analyze the performance of full-duplex relay selection (FDRS) in spectrum-sharing networks. Contrary to half-duplex relaying, full-duplex relaying (FDR) enables simultaneous listening/forwarding at the secondary relay(s),…

信息论 · 计算机科学 2017-10-03 Mohammad Galal Khafagy , Mohamed-Slim Alouini , Sonia Aissa

Blind Null Space Learning (BNSL) has recently been proposed for fast and accurate learning of the null-space associated with the channel matrix between a secondary transmitter and a primary receiver. In this paper we propose a channel…

信息论 · 计算机科学 2012-04-03 Alexandros Manolakos , Yair Noam , Andrea J. Goldsmith

Rate-Splitting Multiple Access (RSMA) has emerged as a novel multiple access technique that enlarges the achievable rate region of Multiple-Input Multiple-Output (MIMO) broadcast channels with linear precoding. In this work, we jointly…

信息论 · 计算机科学 2025-03-11 Sibo Zhang , Bruno Clerckx , David Vargas , Oliver Haffenden , Andrew Murphy

In this paper, we study simultaneous wireless information and power transfer (SWIPT) in orthogonal frequency division multiple access (OFDMA) systems with the coexistence of information receivers (IRs) and energy receivers (ERs). The IRs…

信息论 · 计算机科学 2016-11-17 Meng Zhang , Yuan Liu , Rui Zhang

A critical hindrance in realizing frequency division duplex (FDD) massive multi-input multi-output (MIMO) systems is the overhead associated with the downlink (DL) channel state information at the transmitter (CSIT) acquisition. To address…

信息论 · 计算机科学 2024-11-19 Namhyun Kim , Ian P. Roberts , Jeonghun Park

The polarization domain provides an extra degree of freedom (DoF) for improving the performance of multiple-input multiple-output (MIMO) systems. This paper takes advantage of this additional DoF to alleviate practical issues of successive…