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5 papers found.
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Air quality forecasting based on cloud model granulation

This paper proposes a novel algorithm based on cloud model granulation (CMG) for air quality forecasting. Through data exploration of three different types of monitoring localities in Wuhan City, the determinative pollutants were reduced to NO2, PM10, O3, and PM25 for modeling. After iterative granulation of original time series, the concepts of cloud model were extracted for...

Joint timing synchronization and channel estimation based on ZCZ sequence set in SC-MIMO-FDE system

In this paper, we investigate the channel estimation and time synchronization problem based on the zero correlation zone (ZCZ) sequence set for single carrier multiple-input multiple-output frequency domain equalization (SC-MIMO-FDE). A factorized construction of ZCZ sequence set considering the properties of both ZCZ and nonzero correlation zone (NCZ) is proposed with efficient...

Burst allocation method to enable decision-directed channel estimation for mobile WiMAX downlink transmission

Yu-Sun Liu 0 Shingchern D You Reui-kai Wu 0 0 Department of Electronic Engineering, National Taipei University of Technology , 1, Sec. 3, Chung-Hsiao E. Rd., Taipei 106, Taiwan An easy-to-implement

Minimum decoding trellis length and truncation depth of wrap-around Viterbi algorithm for TBCC in mobile WiMAX

Yu-Sun Liu 0 Yao-Yu Tsai 0 0 Department of Electronic Engineering, National Taipei University of Technology , Taipei, 10608, Taiwan , ROC The performance of the wrap-around Viterbi decoding

Robust SINR-constrained MISO downlink beamforming: when is semidefinite programming relaxation tight?

We consider the multiuser beamforming problem for a multi-input single-output downlink channel that takes into account the errors in the channel state information at the transmitter side (CSIT). By modeling the CSIT errors as elliptically bounded uncertainty regions, this problem can be formulated as minimizing the transmission power subject to the worst-case signal-to...