This paper explores the existence of 3 equilibria for symmetric 2-individual 2-good CES/LES pure exchange economies. For certain parameterizations in the economies, we show analytically that there are no more than 3 e...This paper explores the existence of 3 equilibria for symmetric 2-individual 2-good CES/LES pure exchange economies. For certain parameterizations in the economies, we show analytically that there are no more than 3 equilibria. We generalize our analytical results of existence of 3 equilibria for a wide range of parameterizations. Then we provide examples of 3 equilibria and parameter zones of 3 equilibria for CES and CES/LES economies.展开更多
Two utility-optimization dynamic subcarrier allocation(DSA) algorithms are designed for single carrier frequency division multiple access system(SC-FDMA).The two proposed algorithms aim to support diverse transmission...Two utility-optimization dynamic subcarrier allocation(DSA) algorithms are designed for single carrier frequency division multiple access system(SC-FDMA).The two proposed algorithms aim to support diverse transmission capacity requirements in wireless networks,which consider both the channel state information(CSI) and the capacity requirements of each user by setting appropriate utility functions.Simulation results show that with considerable lower computational complexity,the first utility-optimization algorithm can meet the system capacity requirements of each user effectively.However,the rate-sum capacity performance is poor.Furthermore,the second proposed utility-optimization algorithm can contribute a better trade-off between system rate-sum capacity requirement and the capacity requirements of each user by introducing the signal to noise ratio(SNR) information to the utility function based on the first utility-optimization algorithm,which can improve the user requirements processing capability as well as achieve a better sum-rate capacity.展开更多
为了使得大规模多输入多输出(MIMO)系统的上行链路可达速率最大化,提出一种基于匹配博弈的导频分配(PA-MG)算法.在用户侧,根据用户效用函数生成对导频的偏好列表,并向排列最优的导频发出申请;在基站侧,根据导频效用函数生成对请求用户...为了使得大规模多输入多输出(MIMO)系统的上行链路可达速率最大化,提出一种基于匹配博弈的导频分配(PA-MG)算法.在用户侧,根据用户效用函数生成对导频的偏好列表,并向排列最优的导频发出申请;在基站侧,根据导频效用函数生成对请求用户的偏好列表,并依次将导频分配给排列最优的用户,直到完成所有用户的导频分配.仿真结果表明:相比于潜博弈的导频分配(PG-PA)算法,所提PA-MG算法支持的小区规模更大、复杂度更低;相比于WGC-PD(Weighted Graph Coloring Based Pilot Decontamination)算法,PA-MG算法能够获得更大的上行链路可达速率,各用户的信干噪比分布更均匀,且对阴影衰落的鲁棒性更强.展开更多
基金Supported by National Social Science Foundation of China 2007(07AJL002)National Natural Science Foundation of China(70825003, 70972001)
文摘This paper explores the existence of 3 equilibria for symmetric 2-individual 2-good CES/LES pure exchange economies. For certain parameterizations in the economies, we show analytically that there are no more than 3 equilibria. We generalize our analytical results of existence of 3 equilibria for a wide range of parameterizations. Then we provide examples of 3 equilibria and parameter zones of 3 equilibria for CES and CES/LES economies.
基金Supported by the National Basic Research Program of China(No.61393010101-1)the Defense-related Science & Technology Pre-Research Project of Shipbuilding Institute(No.10J3.1.6)
文摘Two utility-optimization dynamic subcarrier allocation(DSA) algorithms are designed for single carrier frequency division multiple access system(SC-FDMA).The two proposed algorithms aim to support diverse transmission capacity requirements in wireless networks,which consider both the channel state information(CSI) and the capacity requirements of each user by setting appropriate utility functions.Simulation results show that with considerable lower computational complexity,the first utility-optimization algorithm can meet the system capacity requirements of each user effectively.However,the rate-sum capacity performance is poor.Furthermore,the second proposed utility-optimization algorithm can contribute a better trade-off between system rate-sum capacity requirement and the capacity requirements of each user by introducing the signal to noise ratio(SNR) information to the utility function based on the first utility-optimization algorithm,which can improve the user requirements processing capability as well as achieve a better sum-rate capacity.
文摘为了使得大规模多输入多输出(MIMO)系统的上行链路可达速率最大化,提出一种基于匹配博弈的导频分配(PA-MG)算法.在用户侧,根据用户效用函数生成对导频的偏好列表,并向排列最优的导频发出申请;在基站侧,根据导频效用函数生成对请求用户的偏好列表,并依次将导频分配给排列最优的用户,直到完成所有用户的导频分配.仿真结果表明:相比于潜博弈的导频分配(PG-PA)算法,所提PA-MG算法支持的小区规模更大、复杂度更低;相比于WGC-PD(Weighted Graph Coloring Based Pilot Decontamination)算法,PA-MG算法能够获得更大的上行链路可达速率,各用户的信干噪比分布更均匀,且对阴影衰落的鲁棒性更强.
