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Comparison of swarm intelligence methods for suppressing PAPR in CO-OFDM systems
Shaoying Wang;Jianfei Liu;Ziyao Yi;Xiangye Zeng;Jia Lu;Mengjun Wang
2016 15th International Conference on Optical Communications and Networks (ICOCN)
Year: 2016 | Conference Paper |
Swarm intelligence algorithms are applied to suppressing peak to average power ratio (PAPR) in CO-OFDM system by optimizing phase of subcarriers. The result shows that all of these algorithms can effectively reduce PAPR, and the PAPR of CSO optimized signal is reduced by 1.5dB, 0.77dB and 0.28dB compared with that of PSO, BSA and BA optimized signals.Show More
Research on timing synchronization algorithms for CO-OFDM systems
2016 15th International Conference on Optical Communications and Networks (ICOCN)
Year: 2016 | Conference Paper |
A timing synchronization algorithm with a new timing metric function is proposed for CO-OFDM system. Simulation results show that the MSE of the proposed algorithm is very close to zero in the system without chromatic dispersion, even though the OSNR is low. And it can provide higher accuracy comparing with other methods when the dispersion reaches 18ps/nm/km.Show More
mmWave channel sounder based on COTS instruments for 5G and indoor channel measurement
Zhu Wen;Hongwei Kong;Qi Wang;Shu Li;Xiongwen Zhao;Mengjun Wang;Shaohui Sun
2016 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)
Year: 2016 | Conference Paper |
Cited by: Papers (4)
5G, the new generation of mobile networks, attracts lots of interests and attentions in wireless communication with its aggressive performance goals. To be able to provide much higher data rate than today, 5G mobile networks will operate at frequencies higher than the crowded frequency bands used today, with broader bandwidth. Understanding the propagation characteristics of the wireless channel u...Show More
Correlation analysis between crystalline behavior and aging degradation of insulating paper
Qiang Fu;Jing Zhang;Mengjun Wang;Tiansheng Chen;Jian Li;Feipeng Wang;Xi Li
2016 IEEE International Conference on Dielectrics (ICD)
Year: 2016 | Conference Paper |
Cited by: Papers (6)
The insulating paper in the transformer undergoes degradation during operation. Condition monitoring and assessment for insulating paper is of great significance as the life of insulating paper mainly determines that of transformers. Accelerated thermal aging experiments were performed for insulating papers at 120°C and 130°C, respectively. The crystallinity index of insulating paper was calculate...Show More
Adaptive self-interference cancellation in broadband full-duplex MIMO relays
2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)
Year: 2016 | Conference Paper |
Full-duplex relays simultaneously receive and transmit at the same frequency, thus employ less frequency resource. The undesired feedback from the coverage antennas to donor antennas is, however, created by the radio echoes at the same time because of the lack of isolation between antennas. The feedback results in electromagnetic interference in process of reception, and even causes instability in...Show More
Transmission performance of bonding wire at high frequency
2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)
Year: 2016 | Conference Paper |
Cited by: Papers (1)
Bonding wire is used to make an interconnection between ICs and the PCB board. It is small but critical in the structure. In this paper, educational 3D electromagnetic analysis software CST MWS was used to model and simulate several bonding wires with different parameters at high frequency. This paper focuses on relations between parameter changes and transmission performance of bonding wires, for...Show More
A photoelectric type tunable frequency probe for near-field EMI measurement
2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)
Year: 2016 | Conference Paper |
The accurate measurement of near-field EMI of Printed circuit board (PCB) and electronic equipment is essential nowadays. The photoelectric type probe could provide a better solution to the near-field measurement. In this paper, a combined with copper-clad laminate and electron component, the strip line embedded into PCB basal lamina is designed to get a specific frequency response. However, in co...Show More
Multi-objective dispatching model and algorithm of railway emergency materials
IEEE Conference Anthology
Year: 2013 | Conference Paper |
In order to solve the problem of railway emergency materials dispatching optimization considering the difference of the emergency time limit of the materials, the uniqueness of this problem is analyzed and a multi-objective dispatching model is established with multi-objective programming method. On base of satisfying the requirement of emergency time limit of different materials, the model achiev...Show More
Multi-objective dispatching model and algorithm of railway emergency materials
Year: 2013 | Conference Paper |
Downlink channel estimation algorithm in TD-LTE digital relay systems
2012 IEEE 14th International Conference on Communication Technology
Year: 2012 | Conference Paper |
In this paper, focusing on the downlink channel estimation of TD-LTE digital relay system, we present a new channel estimation method which is based on LS algorithm at scattered pilot frequencies with cascaded one-dimension linear interpolation both in time and frequency domains. Meanwhile, different algorithms for channel estimation, such as LS and LMMSE, are investigated and comparison of linear...Show More
Algorithm of car license plates location based on multi-feature fusion
2008 7th World Congress on Intelligent Control and Automation
Year: 2008 | Conference Paper |
Videos in an intersection were taken synchronously by panoramic camera and close-range camera, the image was sampled by close-range camera in calibrated location of panoramic camera, car license plate is located in this close-range image. Aiming to some features of car license plate, edges are detected by using improved color Sobel operator, and the binary image is processed by adopting the method...Show More
Extracting Lip Parameters in Speech Synthesis System Driven by Visual-Speech
First International Conference on Innovative Computing, Information and Control - Volume I (ICICIC'06)
Year: 2006 | Conference Paper |
A speech synthesis system is designed for automatically recognizing visual speech generated by the speech impaired and present a new communication approach for the speech-impaired people. In order to acquire more parameters of lip contours, a new model is made up, which can extract the degree of pouting from it. At the same time, the differential coefficients of some parameters are calculated to d...Show More
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