Filters








4,901 Hits in 4.9 sec

Inter carrier interference removal in MIMO-OFDM system

Jasdeep Singh, Komal Arora
2014 IOSR Journal of Electronics and Communication Engineering  
In the wireless channel estimation the inter carrier interference is removed by the parallel interference cancellation and the decision statistically combining method .The parallel interference cancellation  ...  This review paper is about the schemes of removing the inter carrier interference in the multiple input multiple output-orthogonal frequency division multiplexing system.  ...  This has been removed by the way of parallel interference cancellation. This is couple with the decision statistical combining.  ... 
doi:10.9790/2834-09278791 fatcat:2fxom4zsabfo5dgsazvjeyr25a

High-speed and broadband optical transmission system special issue based on selected IEEE ICOCN 2015 papers

Shilong Pan, Alan Pak Tao Lau, Lei Guo, Hoon Kim
2016 Photonic network communications  
Simulation results of 4 × 56 Gbit/s QPSK mode-division multiplexed system show that the maximum required optical signal to noise ratios (OSNRs) with CMA are less than that of DA-TDE by 0.8 and 4.6 dB for  ...  In "Optical time-division multiplexing signal processing using electro-optic modulators," L. Huo, D. Wang, Q. Wang, Y. F. Xing, X. Y. Jiang and C. Y.  ... 
doi:10.1007/s11107-016-0663-y fatcat:76dy4lu2cfgldgla7wgwxbrmd4

Page 761 of Mathematical Reviews Vol. , Issue 2003A [page]

2003 Mathematical Reviews  
access to the subsystems of multiplexing at fixed points in time defined by the synchronization system.  ...  providing implementation of parallel computations.  ... 

Multiple-symbol parallel decoding for variable length codes

J. Nikara, S. Vassiliadis, J. Takala, P. Liuha
2004 IEEE Transactions on Very Large Scale Integration (vlsi) Systems  
In this paper, a multiple-symbol parallel variable length decoding (VLD) scheme is introduced. The scheme is capable of decoding all the codewords in an -bit block of encoded input data stream.  ...  First, all possible codewords in the block are detected in parallel and lengths are returned.  ...  The critical path, according to Fig. 3(c) , consists of a CD unit, multiplexer, and a cascade of MA units.  ... 
doi:10.1109/tvlsi.2004.825840 fatcat:yj7xgdxg3fhevdgdelyww3i2be

Boosting the secret key rate in a shared quantum and classical fibre communication system

Davide Bacco, Beatrice Da Lio, Daniele Cozzolino, Francesco Da Ros, Xueshi Guo, Yunhong Ding, Yusuke Sasaki, Kazuhiko Aikawa, Shigehito Miki, Hirotaka Terai, Taro Yamashita, Jonas S. Neergaard-Nielsen (+5 others)
2019 Communications Physics  
In this work, we picture how to overcome the rate limitation by using a 37-core fibre to generate 2.86 Mbit/s per core that can be space multiplexed into the highest secret key rate of 105.7 Mbit/s to  ...  During the last 20 years, the advance of communication technologies has generated multiple exciting applications.  ...  Portions of this work were presented at the International Photonic Conference (IPC) in 2018 (ref. 56  ... 
doi:10.1038/s42005-019-0238-1 fatcat:tyst5rhofnc6xeyersg5vofhmu

Position multiplexing multiple-image encryption using cascaded phase-only masks in Fresnel transform domain

Hsuan T. Chang, Hone-Ene Hwang, Cheng-Ling Lee
2011 Optics Communications  
The simulation results show that the crosstalk between multiplexed images is significantly reduced compared with an existing similar method [20] .  ...  A position multiplexing method based on the modified Gerchberg-Saxton algorithm (MGSA) and a cascaded phase modulation scheme in the Fresnel transform domain is proposed in the multiple-image-encryption  ...  Acknowledgements This study was supported by National Yunlin University of Science and Technology, Chung  ... 
doi:10.1016/j.optcom.2011.04.065 fatcat:smlcrxtwk5bmvoxuuja2cppevi

A New MIMO HF Data Link: Designing for High Data Rates and Backwards Compatibility

Robert C. Daniels, Steven W. Peters
2013 MILCOM 2013 - 2013 IEEE Military Communications Conference  
We include simulation results based on our channel measurements to show that this new standard provides 116% improvement in overall throughput and a 15 dB signal-to-noise ratio (SNR) improvement over the  ...  in parallel.  ...  Puncturing enables rates of 2/3, 3/4, 5/6, 8/9, 9/10, and 9/16. Cascaded repetition coding enables rates of 1/3, 1/4, 1/6, 1/8, 1/12, 1/16, 2/5, and 2/7.  ... 
doi:10.1109/milcom.2013.214 dblp:conf/milcom/DanielsP13 fatcat:atx6xtu3m5a2lhxx7eos5nnf3a

26 Tbit s−1 line-rate super-channel transmission utilizing all-optical fast Fourier transform processing

D. Hillerkuss, R. Schmogrow, T. Schellinger, M. Jordan, M. Winter, G. Huber, T. Vallaitis, R. Bonk, P. Kleinow, F. Frey, M. Roeger, S. Koenig (+22 others)
2011 Nature Photonics  
To the best of our knowledge, this is the largest line rate ever encoded onto a single light source.  ...  Experiments show the feasibility and ease of handling terabit per second data with low energy consumption.  ...  Acknowledgements The authors acknowledge support from the Karlsruhe School of Optics & Photonics (KSOP), the Center for Functional Nanostructures (CFN), the German Research Foundation (DFG), the BMBF project  ... 
doi:10.1038/nphoton.2011.74 fatcat:2jyn24muyrdldbgrgtilgtktf4

A high speed multi-level-parallel array processor for vision chips

Cong Shi, Jie Yang, NanJian Wu, ZhiHua Wang
2014 Science China Information Sciences  
Recently, a novel vision chip based on multiple levels of parallel processors was reported [18] .  ...  The array processor was implemented on an FPGA device, and was successfully tested for various algorithms, including real-time face detection based on PPED algorithm.  ...  The operands of op1 and op2 are taken from the left and right cascaded multiplexer groups, respectively.  ... 
doi:10.1007/s11432-013-4969-4 fatcat:3k4gwosuqfgtvf6yyeinmkrwda

Guaranteeing statistical QoS to regulated traffic: the single node case

M. Reisslein, K.W. Ross, S. Rajagopal
1999 IEEE INFOCOM '99. Conference on Computer Communications. Proceedings. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. The Future is Now (Cat. No.99CH36320)  
The scheme consists of (i) cascaded leaky-buckets for tra c regulation, (ii) smoothers at the ingresses, and (iii) bu erless statistical multiplexing within the node.  ...  Finally, we compare the bu erless scheme with bu ered statistical multiplexing.  ...  Acknowledgements: We gratefully acknowledge interactions with Jim Roberts at the early stages of this research.  ... 
doi:10.1109/infcom.1999.751661 dblp:conf/infocom/ReissleinRR99 fatcat:3h27ztwzinew7krr5arrsjqbmm

An optimal low-power/high performance DDP-based Cobra-H64 cipher

A. Rjoub, M. Musameh, O. Koufopavlou
2007 Proceedings of the 3rd International ICST Conference on Mobile Multimedia Communications  
Simulation results based on the layout level have confirmed the validity of the proposed technique, as well as confirmed that low power, speed and performance can be optimized through design at the layout  ...  Through the technique of pipelining in the internal rounding blocks of the Cobra cipher and an increase in the frequency of the circuit from 90MHz to 140MHz, the design achieves increased speed and performance  ...  In the ripple method, the delay time is greater than the delay time in case of parallel as well as the power is more also.  ... 
doi:10.4108/icst.mobimedia2007.1915 dblp:conf/mobimedia/RjoubMK07 fatcat:tenrjyphnngv3bd4olumshz7mu

Clustering determines the dynamics of complex contagions in multiplex networks

Yong Zhuang, Alex Arenas, Osman Yağan
2017 Physical review. E  
Using the generating functions formalism, we determine the conditions, probability, and expected size of the emergent global cascades.  ...  We present the mathematical analysis of generalized complex contagions in clustered multiplex networks for susceptible-infected-recovered (SIR)-like dynamics.  ...  ACKNOWLEDGMENT This research was supported in part by National Science Foundation through grant CCF #1422165, and in part by the Department of ECE at Carnegie Mellon University.  ... 
doi:10.1103/physreve.95.012312 pmid:28208373 fatcat:4hhsptbi25fv5bnqx4nixoxw3q

Study of cosmic ray composition in the knee region using multiple muon events in the Soudan 2 detector

S. M. Kasahara, W. W. M. Allison, G. J. Alner, D. S. Ayres, W. L. Barrett, C. R. Bode, P. M. Border, C. B. Brooks, J. H. Cobb, D. J. A. Cockerill, R. J. Cotton, H. Courant (+41 others)
1997 Physical Review D, Particles and fields  
of the cosmic ray energy spectrum.  ...  Deep underground muon events recorded by the Soudan 2 detector, located at a depth of 2100 meters of water equivalent, have been used to infer the nuclear composition of cosmic rays in the "knee" region  ...  ACKNOWLEDGEMENTS We are very grateful to Tom Gaisser for making the HEMAS/SIBYLL cascade simulation package available to us, and for providing valuable advice. This work was supported by the U.S.  ... 
doi:10.1103/physrevd.55.5282 fatcat:2pdaqhmymba3zokf4ovoqlbv54

PAPR Reduction Algorithm Based on Improved m-law Companding Transform and PTS Technology

Gewei TAN, Xian Huang
2014 Sensors & Transducers  
As a new multicarrier modulation system, orthogonal wavelet packet multiplexing (OWPM) system also has the problem of high peak to average power ratio (PAPR).  ...  Simulation results show that the proposed algorithm compared with the original algorithm has corresponding improvement of performance, and the combined processing with m-law companding transformation and  ...  Fig. 8 is the statistical results of simulating 1000 times in Gauss white noise channel.  ... 
doaj:2c0a7ab7cb2042cdbbfa1cbbd9222372 fatcat:heohoy6rhngm5ffjqogdy66ium

Inferring Multiplex Diffusion Network via Multivariate Marked Hawkes Process [article]

Peiyuan Suny, Jianxin Li, Yongyi Mao, Richong Zhang, Lihong Wang
2018 arXiv   pre-print
The results show that our model is more effective in terms of uncovering the multiplex network structure.  ...  We propose the Multiplex Diffusion Model (MDM) which incorporates the multivariate marked Hawkes process and topic model to infer the multiplex structure of social network.  ...  * t ∼ lognormal(0, 1) • repeat this process until no events are triggered or event time exceeds the observed time window By the generative process of our multiplex diffusion model, we can derive the cascades  ... 
arXiv:1809.07688v1 fatcat:4svludgdg5afbj7u4lkmg3vcfi
« Previous Showing results 1 — 15 out of 4,901 results