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Approximate adder design has drawn wide attention as it can achieve good trade-offs between computation accuracy and cost. We observe that all existing approximate adders may produce completely incorrect result with up to 100% relative error. The big errors happen when higher bits have inconsistent views on certain lower carry-ins due to long carry chain. In this paper, we build a theoretical model...
This work considers the performance of none-light-of-sight (NLOS) target localization method using a distributed receiver array. The multipath propagation is modeled with single bounce reflection from unknown random scatters. A Simultaneous Target and Multipath Positioning (STAMP) method is proposed for jointly estimating the target and scatter positions given Time-of-Arrival (TOA) observations. The...
In this paper, we propose a new traffic flow model, aiming to provide a possible explanation and meanwhile a useful simulation tool for the multi-fractal network traffic. It is shown that the Hurst exponent for the mainline traffic flow will appear crossover phenomena, if it consists of several self similar components with different Hurst exponents. Therefore, crossover phenomena are pervasive in...
Because user's feedback is help to build trust in online transaction, we develop a function about the buyer's bidding, and describe the risk under the feedback mechanism. Then, we analyze the double effects on the buyers and sellers' behavior chosen. After that, we use MATLAB to design a program of Monte-Carlo sampling method to simulate the actual online business. The experimental results show that...
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