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Author details

Zhi-Yuan Li

Also published under: Zhiyuan Li, Zhi-yuan Li

Publications

19

Citations

14

Publications by Year

20062016

Co-Authors:

Steve AndrewsYu-Hui ChenBingying ChengWei DingZhi-Fang Feng

Show All Co-Authors (31)

Zhi-Yuan Li

Also published under: Zhiyuan Li, Zhi-yuan Li

Affiliation

Chinese Academy of Sciences Institute of Physics, Beijing, CN

Publication Topics

Photonic Bandgap,
Band Gap,
Photonic Integrated Circuits,
Air Holes,
Finite-difference Time-domain,
High Quality Factor,
Optical Processing,
Photonic Structures,
Polymeric Materials,
Quality Factor,
Silicon Photonics,
Solid-state Laser

Biography

Zhiyuan Li born in 1972. He received the B.S. degree in optoelectronics from the University of Science and Technology of China (USTC), Hefei, in 1994 and the Ph.D. degree from Institute of Physics, Chinese Academy of Sciences, Beijing, in 1999.,Then he was a Postdoctoral Fellow at the Hong Kong University of Science and Technology, the University of Washington, and the Ames National Laboratory. He is currently a Professor in physics and a Deputy Director of the Optical Physics Laboratory, Institute of Physic, Chinese Academy of Science. His research interests include photonic crystals, nonlinear optics, nanophotonics, plasmonics, and near-field optics. He has published over 160 peer-reviewed scientific papers in physics, chemistry, and mate...

Publications

19

Citations

14

Publications by Year

20062016

Co-Authors:

Steve Andrews
Yu-Hui Chen
Bingying Cheng
Wei Ding
Zhi-Fang Feng

Show All Co-Authors (31)

Author's Published Works

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Showing 1-25 of 32 results

Journals (18)

Conferences (11)

Magazines (3)

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State Key Laboratory of Integrated Services Networks, Xidian University, Xi’an, China(9)
State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, China(5)
State Key Laboratory of RCS, Beijing Jiaotong University, Beijing, China(4)
School of Telecommunications Engineering, Xidian University, Xi’an, China(3)
Xidian University, Xian, Shaanxi, CN(3)
IEEE Sensors Journal(4)
IEEE Transactions on Consumer Electronics(4)
IEEE Access(3)
IEEE Communications Letters(3)
2012 8th International Conference on Wireless Communications, Networking and Mobile Computing(2)
IEEE(32)
Shanghai, China(3)
Xi'an, China(2)
Beijing, China(1)
Guilin, China(1)
Hangzhou, China(1)
Orthogonal Frequency Division Multiplexing(16)
Indoor Environments(11)
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A Multiple Wi-Fi Sensors Assisted Human Activity Recognition Scheme for Smart Home

Jianyang Ding;Yong Wang;Qian Xie;Jiajun Niu

IEEE Sensors Journal

Year: 2025 | Volume: 25, Issue: 3 | Journal Article |

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With the development of wireless communication technology, wireless signals have been expanded from mobile communication to behavioral sensing. In particular, human activity recognition (HAR) relying on Wi-Fi signals has attracted increasing attention and demonstrated its great potential in the field of smart healthcare. However, most HAR solutions fail to capture the full scope of the relationshi...Show More

A Multiple Wi-Fi Sensors Assisted Human Activity Recognition Scheme for Smart Home

Jianyang Ding;Yong Wang;Qian Xie;Jiajun Niu

IEEE Sensors Journal

Year: 2025 | Volume: 25, Issue: 3 | Journal Article |

Light Convolutional Neural Network for Digital Predistortion of Radio Frequency Power Amplifiers

Qian Xie;Yong Wang;Jianyang Ding;Jiajun Niu

IEEE Communications Letters

Year: 2024 | Volume: 28, Issue: 10 | Journal Article |

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Predistortion models of radio frequency (RF) power amplifier (PA), such as the generalized memory polynomial (GMP) model and artificial neural networks (ANNs) model, suffer from limited predistortion precision and high complexity. In this letter, we propose an enhanced digital predistortion (DPD) model based on a light convolutional neural network (CNN) with augmented real-valued and cross-memoriz...Show More

Light Convolutional Neural Network for Digital Predistortion of Radio Frequency Power Amplifiers

Qian Xie;Yong Wang;Jianyang Ding;Jiajun Niu

IEEE Communications Letters

Year: 2024 | Volume: 28, Issue: 10 | Journal Article |

Multi-AP CSI Fusion and Features Optimization-Based Behavioral Sensing on WiFi Platform

Jianyang Ding;Yong Wang;Jing Zhang;Haiming Chen;Hongyan Si;Jie Liu

IEEE Sensors Journal

Year: 2023 | Volume: 23, Issue: 22 | Journal Article |

Cited by: Papers (2)

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The prevalence of WiFi infrastructures has enabled the advancement of a wide range of WiFi-based intelligent applications. Behavioral sensing, as an increasingly popular example, is attracting growing research interest in developing a device-free, accurate, and privacy-friendly interaction. Recent advances in behavioral research have shown great promise, but most of existing systems fail to captur...Show More

Multi-AP CSI Fusion and Features Optimization-Based Behavioral Sensing on WiFi Platform

Jianyang Ding;Yong Wang;Jing Zhang;Haiming Chen;Hongyan Si;Jie Liu

IEEE Sensors Journal

Year: 2023 | Volume: 23, Issue: 22 | Journal Article |

Multi-Antenna Information Fusion-Based Indoor Localization Using Signals Reflections

Jianyang Ding;Yong Wang;Mianxiong Dong;Kaoru Ota

IEEE Communications Letters

Year: 2023 | Volume: 27, Issue: 12 | Journal Article |

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With the ubiquitous of WiFi infrastructure, wireless signals-based indoor localization is attracting intensive attentions and fostered a range of intelligent applications. However, most of existing schemes fail to capture the full scope of the relationship between WiFi signals and physical locations. To tackle this issue, we present a framework for device-free localization by estimating the channe...Show More

Multi-Antenna Information Fusion-Based Indoor Localization Using Signals Reflections

Jianyang Ding;Yong Wang;Mianxiong Dong;Kaoru Ota

IEEE Communications Letters

Year: 2023 | Volume: 27, Issue: 12 | Journal Article |

WiFi Fingerprint-Based Multi-user Localization for Smart Home by WiFi Sensing

Jianyang Ding;Yong Wang;Shaozhong Fu;Haiming Chen;Wendong Xie;Yunsong Liu

2022 IEEE 22nd International Conference on Communication Technology (ICCT)

Year: 2022 | Conference Paper |

Cited by: Papers (1)

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Device-free and passive indoor localization based on WiFi channel state information (CSI) has attracted a great deal of research interest and yielded a broad range of related applications. However, most of existing approaches are influenced heavily by random noises, and also they fail in the presence of multiple users in the same area. In this paper, we present an accurate indoor localization sche...Show More

WiFi Fingerprint-Based Multi-user Localization for Smart Home by WiFi Sensing

Jianyang Ding;Yong Wang;Shaozhong Fu;Haiming Chen;Wendong Xie;Yunsong Liu

2022 IEEE 22nd International Conference on Communication Technology (ICCT)

Year: 2022 | Conference Paper |

Multimodal Fusion-GMM based Gesture Recognition for Smart Home by WiFi Sensing

Jianyang Ding;Yong Wang;Hongyan Si;Jiannan Ma;Jingwen He;Kai Liang;Shaozhong Fu

2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring)

Year: 2022 | Conference Paper |

Cited by: Papers (5)

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With the thriving development of communication systems and the ubiquity of commodity WiFi devices, wireless intelligent sensing has attracted increasingly attention owing to its importance in Human-Computer Interaction (HCI) where hand gesture recognition has been widely studied these years. However, most of gesture recognition approaches have a limited performance owing to the background noises. ...Show More

Multimodal Fusion-GMM based Gesture Recognition for Smart Home by WiFi Sensing

Jianyang Ding;Yong Wang;Hongyan Si;Jiannan Ma;Jingwen He;Kai Liang;Shaozhong Fu

2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring)

Year: 2022 | Conference Paper |

Multiview Features Fusion and AdaBoost Based Indoor Localization on WiFi Platform

Jianyang Ding;Yong Wang;Shaozhong Fu;Hongyan Si;Jing Zhang;Shang Gao

IEEE Sensors Journal

Year: 2022 | Volume: 22, Issue: 16 | Journal Article |

Cited by: Papers (13)

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With the increasing demand for location-based service (LBS), WiFi-based localization has attracted considerable attentions due to the wide deployment and low cost of WiFi devices. However, most of existing approaches need to work within line-of-sight (LoS) range or require users to take dedicated devices. Thus, a device-free and passive indoor localization scheme is still desired. In this paper, a...Show More

Multiview Features Fusion and AdaBoost Based Indoor Localization on WiFi Platform

Jianyang Ding;Yong Wang;Shaozhong Fu;Hongyan Si;Jing Zhang;Shang Gao

IEEE Sensors Journal

Year: 2022 | Volume: 22, Issue: 16 | Journal Article |

Three-Dimensional Indoor Localization and Tracking for Mobile Target Based on WiFi Sensing

Jianyang Ding;Yong Wang;Hongyan Si;Shang Gao;Jiwei Xing

IEEE Internet of Things Journal

Year: 2022 | Volume: 9, Issue: 21 | Journal Article |

Cited by: Papers (26)

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With the prevalence of commodity WiFi devices and development of the Internet of Things (IoT), the usage of WiFi has been extended from communication to context aware. Based on this, indoor localization has attracted increasing attention in the academic community, without the need for additional sensors and any active engagement from the users. However, the localization performance is vulnerable t...Show More

Three-Dimensional Indoor Localization and Tracking for Mobile Target Based on WiFi Sensing

Jianyang Ding;Yong Wang;Hongyan Si;Shang Gao;Jiwei Xing

IEEE Internet of Things Journal

Year: 2022 | Volume: 9, Issue: 21 | Journal Article |

Multimodal Fusion-AdaBoost Based Activity Recognition for Smart Home on WiFi Platform

Jianyang Ding;Yong Wang;Hongyan Si;Shang Gao;Jiwei Xing

IEEE Sensors Journal

Year: 2022 | Volume: 22, Issue: 5 | Journal Article |

Cited by: Papers (22)

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With the ubiquity of commodity WiFi devices and the rapid development of Internet of Things (IoT), there are increasingly intelligent sensing applications emerging by utilizing fine-grained channel state information (CSI) from WiFi signals, which can realize contactless human-computer interaction (HCI) for smart home. However, most of CSI-based activity recognition approaches are vulnerable to ran...Show More

Multimodal Fusion-AdaBoost Based Activity Recognition for Smart Home on WiFi Platform

Jianyang Ding;Yong Wang;Hongyan Si;Shang Gao;Jiwei Xing

IEEE Sensors Journal

Year: 2022 | Volume: 22, Issue: 5 | Journal Article |

A WiFi-Based Smart Home Fall Detection System Using Recurrent Neural Network

Jianyang Ding;Yong Wang

IEEE Transactions on Consumer Electronics

Year: 2020 | Volume: 66, Issue: 4 | Journal Article |

Cited by: Papers (69)

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Falls among the elderly living on their own have been regarded as a major public health worry that can even lead to death. Fall detection system (FDS) that alerts caregivers or family members can potentially save lives of the elderly. However, conventional FDS involves wearable sensors and specialized hardware installations. This article presents a passive device-free FDS based on commodity WiFi f...Show More

A WiFi-Based Smart Home Fall Detection System Using Recurrent Neural Network

Jianyang Ding;Yong Wang

IEEE Transactions on Consumer Electronics

Year: 2020 | Volume: 66, Issue: 4 | Journal Article |

Wihi: WiFi Based Human Identity Identification Using Deep Learning

Jianyang Ding;Yong Wang;Xiangcong Fu

Year: 2020 | Volume: 8 | Journal Article |

Cited by: Papers (27)

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Human identity identification based on channel state information (CSI) using commercial WiFi devices has drawn increasingly attention, and it can be used in many applications such as smart home, intrusion detection, building monitoring, activity recognition, etc. However, most of the existing identity identification approaches are sensitive to the influence of random noise derived from indoor envi...Show More

Wihi: WiFi Based Human Identity Identification Using Deep Learning

Jianyang Ding;Yong Wang;Xiangcong Fu

Year: 2020 | Volume: 8 | Journal Article |

FiPR: A Fine-grained Human Posture Recognition

Jianyang Ding;Yong Wang;Yinghua Qi;Chengcheng Ma;Yuan Leng

2019 IEEE 19th International Conference on Communication Technology (ICCT)

Year: 2019 | Conference Paper |

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Various pioneering human posture recognition techniques based on Channel State Information (CSI) of WiFi devices have been proposed. The main issue of existing techniques, however, lies in such recognition methods are extremely sensitive to the impacts of random noise derived from indoor environments. In this paper, we present a fine-grained human posture recognition (FiPR) scheme to overcome this...Show More

FiPR: A Fine-grained Human Posture Recognition

Jianyang Ding;Yong Wang;Yinghua Qi;Chengcheng Ma;Yuan Leng

2019 IEEE 19th International Conference on Communication Technology (ICCT)

Year: 2019 | Conference Paper |

Novel ACE Scheme for PAPR Reduction of High Broadband OFDM Systems

Yuzhuo Liu;Yong Wang

2019 IEEE 19th International Conference on Communication Technology (ICCT)

Year: 2019 | Conference Paper |

Cited by: Papers (1)

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The high broadband Orthogonal Frequency Division Multiplexing (OFDM) system is characterized by high-order constellation and a large of sub-carriers. In order to overcome the major drawback of high Peak-to-Average Power Ratio (PAPR) of OFDM signal, traditional Active Constellation Extension (ACE) techniques maybe pay more price, such as increasing the iteration numbers, thus, costing the more syst...Show More

Novel ACE Scheme for PAPR Reduction of High Broadband OFDM Systems

Yuzhuo Liu;Yong Wang

2019 IEEE 19th International Conference on Communication Technology (ICCT)

Year: 2019 | Conference Paper |

WiFi CSI-Based Human Activity Recognition Using Deep Recurrent Neural Network

Jianyang Ding;Yong Wang

Year: 2019 | Volume: 7 | Journal Article |

Cited by: Papers (62)

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Human activity recognition based on channel state information (CSI) using commercial WiFi devices plays an increasingly important role in many applications, such as smart home and interactive games. In this paper, we propose a WiFi CSI based human activity recognition approach using deep recurrent neural network (HARNN). HARNN mainly exploits four key techniques to recognize different human activi...Show More

WiFi CSI-Based Human Activity Recognition Using Deep Recurrent Neural Network

Jianyang Ding;Yong Wang

Year: 2019 | Volume: 7 | Journal Article |

An Efficient ACE Scheme for PAPR Reduction of OFDM Signals With High-Order Constellation

Yuzhuo Liu;Yong Wang;Bo Ai

Year: 2019 | Volume: 7 | Journal Article |

Cited by: Papers (8)

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In this paper, an efficient Active Constellation Extension (ACE) based on Extension Projection Onto the Convex Sets (EPOCS-ACE) scheme is proposed for reducing Peak-to-Average Power Ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) signals especially with a large number of sub-carriers and high-order constellation. Utilizing the specially designed iterative procedure, considerable ...Show More

An Efficient ACE Scheme for PAPR Reduction of OFDM Signals With High-Order Constellation

Yuzhuo Liu;Yong Wang;Bo Ai

Year: 2019 | Volume: 7 | Journal Article |

Fog-Enabled WLANs for Indoor Positioning

Yanjun Guo;Liqiang Zhao;Yong Wang;Qi Liu;Jiahui Qiu

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)

Year: 2019 | Conference Paper |

Cited by: Papers (4)

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This paper presents fog-enabled WLANs for indoor positioning, which can meet its requirements of low latency and high precision. Firstly, we present software-defined and virtualized WLANs, which could be divided into four layers, i.e., application layer, control layer, infrastructure layer and terminal layer. Secondly, we introduce fog computing into software-defined and virtualized WLANs to build...Show More

Fog-Enabled WLANs for Indoor Positioning

Yanjun Guo;Liqiang Zhao;Yong Wang;Qi Liu;Jiahui Qiu

2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring)

Year: 2019 | Conference Paper |

Joint resource allocation and coordinated computation offloading for fog radio access networks

Kai Liang;Liqiang Zhao;Xiaohui Zhao;Yong Wang;Shumao Ou

China Communications

Year: 2016 | Volume: 13, Issue: Supplement2 | Magazine Article |

Cited by: Papers (17)

The cloud radio access network (C-RAN) and the fog computing have been recently proposed to tackle the dramatically increasing traffic demands and to provide better quality of service (QoS) to user equipment (UE). Considering the better computation capability of the cloud RAN (10 times larger than that of the fog RAN) and the lower transmission delay of the fog computing, we propose a joint resour...Show More

Joint resource allocation and coordinated computation offloading for fog radio access networks

Kai Liang;Liqiang Zhao;Xiaohui Zhao;Yong Wang;Shumao Ou

China Communications

Year: 2016 | Volume: 13, Issue: Supplement2 | Magazine Article |

Enhanced PSO based energy-efficient resource allocation and CQI based MCS selection in LTE-A heterogeneous system

Jianbo Du;Liqiang Zhao;Jie Feng;Jie Xin;Yong Wang

China Communications

Year: 2016 | Volume: 13, Issue: 11 | Magazine Article |

Cited by: Papers (10)

In order to maximize system energy efficiency (EE) under user quality of service (QoS) restraints in Long Term Evolution-Advanced (LTE-A) networks, a constrained joint resource optimization allocation scheme is presented, which is NP-hard. Hence, we divide it into three sub-problems to reduce computation complexity, i.e., the resource block (RB) allocation, the power distribution, and the modulati...Show More

Enhanced PSO based energy-efficient resource allocation and CQI based MCS selection in LTE-A heterogeneous system

Jianbo Du;Liqiang Zhao;Jie Feng;Jie Xin;Yong Wang

China Communications

Year: 2016 | Volume: 13, Issue: 11 | Magazine Article |

On Stochastic Analysis of Greedy Routing in Vehicular Networks

Lina Zhu;Changle Li;Yong Wang;Zhe Luo;Zhe Liu;Bingbing Li;Xinbing Wang

IEEE Transactions on Intelligent Transportation Systems

Year: 2015 | Volume: 16, Issue: 6 | Journal Article |

Cited by: Papers (29)

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Even the greedy routing is widely used in wireless networks, its theoretical study is still limited in vehicle environments. In this paper, we theoretically analyze the performance of the greedy routing under three typical vehicle scenarios, i.e., the single-lane road, the multilane road, and the multilevel road. We first propose the analytical model by analyzing characteristics of traffic environ...Show More

On Stochastic Analysis of Greedy Routing in Vehicular Networks

Lina Zhu;Changle Li;Yong Wang;Zhe Luo;Zhe Liu;Bingbing Li;Xinbing Wang

IEEE Transactions on Intelligent Transportation Systems

Year: 2015 | Volume: 16, Issue: 6 | Journal Article |

Iterative companding transform and filtering for reducing PAPR of OFDM signal

Yong Wang;Chao Yang;Bo Ai

IEEE Transactions on Consumer Electronics

Year: 2015 | Volume: 61, Issue: 2 | Journal Article |

Cited by: Papers (20)

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In this paper, an efficient Iterative Companding Transform and Filtering (ICTF) technique is proposed for reducing the Peak-to-Average Power Ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) signal. By means of a specially designed iterative procedure, ICTF is able to obtain both an improved Bit Error Rate (BER) and minimized Out-of-Band Interference (OBI) while reducing the PAPR s...Show More

Iterative companding transform and filtering for reducing PAPR of OFDM signal

Yong Wang;Chao Yang;Bo Ai

IEEE Transactions on Consumer Electronics

Year: 2015 | Volume: 61, Issue: 2 | Journal Article |

A Fuse-and-Forward Protocol for Two-Way Relaying Networks With Relay Having Its Own Broadcasting Information

Guo Li;Fengkui Gong;Nan Zhang;Yong Wang

IEEE Communications Letters

Year: 2015 | Volume: 19, Issue: 8 | Journal Article |

Cited by: Papers (5)

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A fuse-and-forward (FF) relaying protocol is proposed and analyzed for two-way relaying networks where the relay node has its own information to broadcast. In our FF protocol, the relay node will firstly process the received signals to obtain a new signal version by fusing with its own information, then broadcast to all the source nodes. We assume that multiple antennas are deployed to the relay n...Show More

A Fuse-and-Forward Protocol for Two-Way Relaying Networks With Relay Having Its Own Broadcasting Information

Guo Li;Fengkui Gong;Nan Zhang;Yong Wang

IEEE Communications Letters

Year: 2015 | Volume: 19, Issue: 8 | Journal Article |

Variable step-size MLMS algorithm for digital predistortion in wideband OFDM systems

F. Zhang;Y. Wang;B. Ai

IEEE Transactions on Consumer Electronics

Year: 2015 | Volume: 61, Issue: 1 | Journal Article |

Cited by: Papers (12)

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As one of the most promising linearization techniques, adaptive Digital Predistortion (PD) has been widely utilized in modern wireless communication systems for improving the efficiency of Power Amplifier (PA). In view of the non-stationary signal environment for the wideband PAs, an efficient indirect learning adaptive PD is proposed in the paper based on the Memory Polynomial Model (MPM). The co...Show More

Variable step-size MLMS algorithm for digital predistortion in wideband OFDM systems

F. Zhang;Y. Wang;B. Ai

IEEE Transactions on Consumer Electronics

Year: 2015 | Volume: 61, Issue: 1 | Journal Article |

An Energy-Efficient and Swarm Intelligence-Based Routing Protocol for Next-Generation Sensor Networks

Yong Wang;Changle Li;Yulong Duan;Jin Yang;Xiang Cheng

IEEE Intelligent Systems

Year: 2014 | Volume: 29, Issue: 5 | Magazine Article |

Cited by: Papers (14)

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After providing a brief overview of routing protocols for next-generation sensor networks (NGSNs), the authors propose Bee-Sensor-C, an energy-efficient, swarm intelligence-based, and scalable multipath routing protocol that integrates dynamic clustering, multipath routing, and bee-inspired routing to meet the performance requirements of NGSNs. A performance evaluation is also provided.Show More

An Energy-Efficient and Swarm Intelligence-Based Routing Protocol for Next-Generation Sensor Networks

Yong Wang;Changle Li;Yulong Duan;Jin Yang;Xiang Cheng

IEEE Intelligent Systems

Year: 2014 | Volume: 29, Issue: 5 | Magazine Article |

Novel adaptive digital predistortion based on the hybrid indirect learning algorithm

F. Zhang;Y. Wang;B. Ai

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

Year: 2014 | Conference Paper |

Cited by: Papers (2) | Patents (1)

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Adaptive digital predistortion (DPD) is one of the most promising linearization technique, which leads to more efficient and cost-effective high power amplifier (HPA). In this paper, we propose a novel adaptive DPD based on the hybrid indirect learning (HIL) algorithm, which can not only remedy the effect caused by measurement noise in the feedback loop effectively, but also improve the convergenc...Show More

Novel adaptive digital predistortion based on the hybrid indirect learning algorithm

F. Zhang;Y. Wang;B. Ai

2014 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting

Year: 2014 | Conference Paper |

Nonlinear Companding Transform for Reduction of Peak-to-Average Power Ratio in OFDM Systems

Yong Wang;Jianhua Ge;Lihua Wang;Jing Li;Bo Ai

IEEE Transactions on Broadcasting

Year: 2013 | Volume: 59, Issue: 2 | Journal Article |

Cited by: Papers (46) | Patents (2)

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High peak-to-average power ratio (PAPR) of the transmitted signal is one of the limitations to employing orthogonal frequency division multiplexing (OFDM) system. In this paper, we propose a new nonlinear companding algorithm that transforms the OFDM signals into the desirable statistics form defined by a linear piecewise function. By introducing the variable slopes and an inflexion point in the t...Show More

Nonlinear Companding Transform for Reduction of Peak-to-Average Power Ratio in OFDM Systems

Yong Wang;Jianhua Ge;Lihua Wang;Jing Li;Bo Ai

IEEE Transactions on Broadcasting

Year: 2013 | Volume: 59, Issue: 2 | Journal Article |

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