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Big Data Computing and Communications: First International by Yu Wang, Hui Xiong, Shlomo Argamon, XiangYang Li, JianZhong

By Yu Wang, Hui Xiong, Shlomo Argamon, XiangYang Li, JianZhong Li

This e-book constitutes the lawsuits of the 1st foreign convention on enormous facts Computing and Communications, BigCom 2015, held in Taiyuan, China, in August 2015. The forty-one papers awarded during this quantity have been rigorously reviewed and chosen from seventy four submissions. They have been prepared in topical sections named: instant conversation and networks; database and massive information; clever mobilephone and sensing software; safeguard and privateness; structure and functions; sensor networks and RFID; social networks and advice; sign processing and development acceptance; and routing and source management.

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Extra info for Big Data Computing and Communications: First International Conference, BigCom 2015, Taiyuan, China, August 1-3, 2015, Proceedings

Sample text

The proposed 0 -CSKF may run faster than DS and BP when Np ≥ 80. 2. Fig. 2(b) demonstrates the MSE versus SNR performance of these schemes for Sk = 16 and Np = 50 identically. It can be seen that 0 -atan CSKF, 0 -tanh CSKF and 0 -2order CSKF outperform the other methods more than 3dB both in BER and MSE performance comparison, however, 0 -Gaussian CSKF fails to work due to that ˆ 0 = 0 and Σ0 = 100 forced to be used there is a time uncorrelated initial value h at each time step without any prior knowledge of the channel sparsity.

Stated differently, the algorithms presented here are slightly superior to the ones proposed in [3] in the approximate static scenario (without any prior knowledge of the channel) and considerable better in the dynamic scenario (a part of path number and path delays is available according to the previous channel estimation). The paper is organized as follows. In Section 2, we introduce the system model and the problem definition for DSCE of OFDM systems. Some basic facts about CS are reviewed in Section 3.

We assume that each seller contributes one distinct channel while each buyer requiring one single channel. The channels are homogenous to everyone who takes apart in the auction. As sellers, P U s submit their bids to the auctioneer privately. Buyers submit the information of locations and the requirements of time slots besides bids privately to the auctioneer. For a seller i, Bis is its bid of a channel, which is the minimum payment required to sell a channel. Vis is its true valuation of a channel.

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