移动云计算中的时变通信信道估计算法  

Variable Communication Channel Estimation Algorithm in Mobile Cloud Computing

作　　者：周漪[1] 时军艳[2] 

机构地区：[1]许昌市耕新信息科学研究院,河南许昌461000 [2]许昌职业技术学院,河南许昌461000

出　　处：《科技通报》2015年第10期169-171,共3页Bulletin of Science and Technology

摘　　要：在移动云计算中,通过无线通信方式实现数据调度和传输,移动云计算通信信道具有时变特性,对其有效的信道均衡和相位估计是保证云计算质量的基础。传统的时变通信信道估计算法采用多模盲均衡算法,出现码间干扰和相位失衡。提出一种基于二次调频双稳态检测的移动云计算中的时变通信信道估计算法。首先进行移动云计算的通信信道模型构建,基于协议信道邻居构建的通信功率增益模型,进行信道划分协议设计,设计二次调频双稳态检测算法,采用同步算法减少系统子载波间的正交性抑制,得到移动云计算通信系统信道均衡系统,检测移动云计算信道的时变特征,实现准确估计,通过仿真实验进行性能验证。仿真结果表明,该算法具有较大的信道估计性能,抗干扰能力提高,信息增益提高,在云计算通信中具有较好的稳健性。In mobile cloud computing, realize the data scheduling and transmission through wireless communication, mobile cloud computing communication channel with time-varying characteristics, the effective channel equalization and phase es-timation is the foundation and guarantee of the quality of cloud computing. Variable communication channel estimation al-gorithm using multimodulus blind equalization algorithm when traditional appearance, intersymbol interference and phase imbalance. Based on the mobile cloud two FM double steady state detection in the calculation of the time-varying communi-cation channel estimation algorithm is obtained. First carries on the construction of communication channel model of mo-bile cloud computing, communication protocol channel power gain model based on neighbor construction, design channel partition protocol, design two FM double steady-state detection algorithm, using synchronous algorithm to reduce the or-thogonality between sub carrier suppression system, mobile cloud computing communication system, channel equalization system, detection of mobile cloud computing the channel time-varying characteristics, to achieve accurate estimation, per-formance is verified by simulation experiment. The simulation results show that the algorithm has a larger estimation perfor-mance of channel, improve anti-interference ability, information gain is increased, the cloud computing robust communica-tion.

关 键 词：移动通信 云计算 信道估计 

分 类 号：TN911[电子电信—通信与信息系统]