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Direct vs. Two-Step Approach for Unique Word Generation in UW-OFDM
Direct vs. Two-Step Approach Unique Word Generation UW-OFDM
2010/12/8
Unique word OFDM is a novel technique for constructing OFDM symbols, that has many advantages
over cyclic prefix OFDM. In this paper we investigate two different approaches for the generation of an O...
Quantum Kinetic Evolution of Marginal Observables
quantum kinetic equation mean-field limit dual quantum BBGKY hierarchy evolution of observables
2010/12/3
We develop a rigorous formalism for the description of the evolution of observables of quantum systems of particles in the mean-field scaling limit. The corresponding asymptotics of a solution of the ...
考虑资源约束和变质期的订货批量与定价的联合决策
动态规划 变质期 定价 能力受限批量问题
2009/9/27
传统的订货计划一般假定需求事先已知.研究了需求是价格的函数、订货能力有限情形时，
订货商对变质性产品协调地进行定价决策和订货决策，使得利润最大化.建立了二次规划数学模型. 提出了基于动态规划的算法，可以在多项式时间内求解原问题的最优定价策略和最优订货计划.实验结果表明，与分散决策相比，联合决策可以给订货商带来更多的利润.通过订货能力的灵敏度分析，表明订货能力变化对利润和价格产生显著影响，有助于订...