Cdpd systems engineering group, lucents network systems, naperville, illinois. Digital predistortion using adaptive basis functions. Chiaming chang member of technical staff bell labs. Today hong jiang and pals from bell labs show off another capability of their new design. Video coding using compressive video sensing exhibits many characteristics that are desirable for transmission in a video network. First, we establish a theoretical framework for a generic predistorte. Cellular digital packet data networks nokia bell labs journals. Gang huang, hong jiang, kim matthews and paul wilford. The transmittance of each aperture element is independently controllable. Blockwise lensless compressive camera xin yuan, gang. His research interests include video analytics and understanding, object recognition, context modeling, probabilistic graphical models, machine learning. Jiang established big data system lab, xilinxhkust joint lab, and optics lab at hkust.
This paper is concerned with digital predistortion for linearization of rf high power amplifiers hpas. This cited by count includes citations to the following articles in scholar. A hierarchical modulation method is proposed for providing local content in a hybrid satellite and terrestrial single frequency network such dvbsh. Digital predistortion using stochastic conjugate gradient. He was a research associate with nec laboratories america, princeton, nj, usa, from 2003 to 2005. Video coding using compressive sensing for wireless. A new class of imaging device from bell labs can take more than one view of a scene at the same time. He worked in academia and for a startup network technology company before joining lucent technologies and alcatellucent, where he was with the wireless design center, the systems engineering department, and the bell labs research. Since then, he has been working in nokia bell labs, murray hill, nj as a video analysis and coding researcher.
The reconstruction algorithm is an efficient tv minimization algorithm based on the augmented lagrangian method and an. Video reconstruction is based on minimizing the total variation tv of the pixelwise dct coefficients along temporal direction. Scalable video coding using compressive sensing jiang. Lensless imaging by compressive sensing gang huang, hong jiang, kim matthews and paul wilford bell labs, alcatellucent, murray hill, nj 07974 abstract in this paper, we propose a lensless compressive imaging architecture. The talks cover a wide variety of research areas related to applied mathematics, and are aimed at both faculty members and graduate students.
Bell labs and the great age of american innovation paperback february 26, 20. The book covers bell labs seminal work on multiplexing, information theory, transistors, lasers, fiber optics, communications satellites, the cosmic microwave background, and mobile phone networks, among other things. In 1957, wolfgang pauli visited bell labs, and i had the daunting. See the complete profile on linkedin and discover chiaming. Emtech hong kong is not an average tech conference. An iterative stochastic conjugate gradient scg method is used in computing the predistorter in the digital predistortion. Advance program hong kong university of science and. Gang huang, hong jiang, kim matthews, paul wilford. Paul wilford research director bell laboratories linkedin. Cab 657 a stochastic conjugate gradient method for the approximation of functions hong jiang bell labs abstract we consider the best approximation of a function by a linear combination of a set of linearly independent basis functions, for example, by a polynomial of a certain degree. Bell laboratoriescolumbia university in the city of new york. How do you build a twoway digital radio for well under one dollar.
The scg has the advantage of reducing the complexity and, at the same time, increasing the convergence rate and stability of iteration. Jeanphilippe joseph massive scale access nokia bell labs. A new video coding method based on compressive sampling is proposed, in which a video is coded using compressive measurements on video cubes. Aditya akella, michael swift university of wisconsinmadison. Surveillance video analysis using compressive sensing with low latency. President jiang zemin of china, a permanent smile on his face, basked today in the prestige of harvard university, where the white house, fearing large protests, had urged him not to go. He received his phd from princeton university and worked at bell labs, nec labs, and a startup company before joining hkust. Add open access links from to the list of external document links if available. View chiaming changs profile on linkedin, the worlds largest professional community. His research interests include signal processing, digital communications, and image and video compression.
He worked at bell labs, nec labs, and a startup company before joining the hong kong university of science and technology. Join facebook to connect with jiang xu and others you may know. Find all the books, read about the author, and more. Gang huang, hong jiang, kim m atthews and paul wilford. Hong jiang redefining our relationship with information bell labs. A correlation for the detection of time and frequency offsets. Digital predistortion for power amplifiers using separable.
A correlation is proposed for use to detect time and frequency offsets in a received signal in a digital transmission system. The idea factory is a fascinating look at the lives of some of the key men who shaped bell labs and created its greatest inventions. Nokia bell labs operates its headquarters in murray hill, new jersey, united states, and has research and development facilities throughout the world. From 2001 to 2002, he was with bell labs, murray hill, nj, usa, as a research associate. Jiang is with the bell labs, alcatellucent, murray hill, nj 07974. A few years ago, ncr came to bell labs the research arm of lucent technologies with an unusual challenge. Redefining our relationship with information bell labs. Not everything bell labs did was a resounding success, though. Digital predistortion using adaptive basis functions xin yu and hong jiang o.
The correlation is formed with the products of two pairs of transmitted samples and received samples. Performance analysis department, bell labs, holmdel, new jersey. Jiang xu is a full professor at hong kong university of science and technology hkust. Multiview images are acquired by a lensless compressive imaging architecture, which consists of an aperture assembly and multiple sensors.
The architecture consists of two components, an aperture assembly and a sensor. The ones marked may be different from the article in the profile. Applications include time and frequency synchronization in a single frequency network. Inspire a love of reading with prime book box for kids discover delightful childrens books with prime book box, a subscription that delivers new books every 1. In this paper, we propose a lensless compressive imaging architecture.
He invented key algorithms for vsb demodulation and hdtv video processing in the first. Hong jiang, gang huang, paul wilford submitted on 17 jun 20, last revised 12 sep 20 this version, v2 abstract. Fei mei, qiang cao huazhong university of science and technology, hong jiang university of texas at arlington, lei tian tintri, inc. The original camera makes an ordinary image with a. The invention could revolutionize optical, infrared and millimeterwave imaging. The aperture assembly consists of a two dimensional array of aperture elements. The tenacity with which narain repeats that there is a conflict between basic and applied research is impressive, but ultimately pointless. Facebook gives people the power to share and makes the world more open and connected. Ami seminar series the ami maintains an active research seminar series, which typically runs on fridays at 3. Xin does research in computational imaging, artificial neural network, artificial intelligence and computing in mathematics, image and video processing. Surveillance video analysis using compressive sensing with.
Wilford nokia bell labs, 600 montain avenue, murray hill, nj, 07974, usa abstract the existing lensless compressive camera l2c2 1 suffers from low capture rates, resulting in low resolution images when acquired over a short time. Joint source deblending and reconstruction for seismic data. In this work, we propose a new regime to mitigate these drawbacks. Scalable video coding using compressive sensing bell. Pdf lensless imaging by compressive sensing researchgate. Symposium on numerical methods and algorithms for wireless communications organizer. He invented key algorithms for vsb demodulation and hdtv video processing in. But he did it, and the reference to the bible appeared only later in a book by low 97. It is a curation of the worlds leading tech executives, scientists and investors. In particular, the coded video is inherently scalable with channel capacity, decoding complexity, display resolution, and quality. He worked in academia and for a startup network technology company before joining lucent technologies and alcatellucent, where he was with the wireless design center, the systems engineering department, and the bell labs. Gmu downtown campus compressive video sensing hong jiang bell labs abstract video coding using compressive video sensing exhibits many characteristics that are desirable for transmission in a video network. First, we establish a theoretical framework for a generic predistorter system, and show that if a postdistorter exists, then it is also a predistorter, and therefore, the predistorter and postdistorter are equivalent.
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