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tti

  • 基于AT89C51应用系统的串行通信设计

    基于AT89C51应用系统的串行通信设计:介绍了基于AT89C51应用系统中的串行通信软硬件设计方法和实现过程,在基于红外成像技术的电力设备状态检测系统中,将红外测温仪检测到设备的温度数据传给控制电路,进行数据格式的转换后,在RAM 中存储,同时上传给PC机。系统利用MAX232实现RS 232C的EIA 电平与单片机的tti 电平之闻转换,利用通用串口芯片8251A扩展串行接13',实现PC机与单片机之问的串行通信。 关键词:串行通信;单片机;接口;RS232C

    标签: 89C C51 AT 89

    上传时间: 2014-12-21

    上传用户:aeiouetla

  • Full-Duplex+Small+Cells

    The recent developments in full duplex (FD) commu- nication promise doubling the capacity of cellular networks using self interference cancellation (SIC) techniques. FD small cells with device-to-device (D2D) communication links could achieve the expected capacity of the future cellular networks (5G). In this work, we consider joint scheduling and dynamic power algorithm (DPA) for a single cell FD small cell network with D2D links (D2DLs). We formulate the optimal user selection and power control as a non-linear programming (NLP) optimization problem to get the optimal user scheduling and transmission power in a given tti. Our numerical results show that using DPA gives better overall throughput performance than full power transmission algorithm (FPA). Also, simultaneous transmissions (combination of uplink (UL), downlink (DL), and D2D occur 80% of the time thereby increasing the spectral efficiency and network capacity

    标签: Full-Duplex Cells Small

    上传时间: 2020-05-27

    上传用户:shancjb

  • 深入理解LTE

    本书详细介绍了LTE物理层相关协议及算法实现,包括LTE协议栈结构、LTE时域、频域和空间域资源、下行参考信号、下行L1、L2控制信道、PDSCH信道、传输模式、上行参考信号、PUCCH信道、PUSCH信道、CSI资源指示、上行HARQ、下行HARQ、SR、BSR、DRX、MAC复用与逻辑信道优先级、上行同步、小区搜索过程、系统信息、随机接入过程、寻呼、载波聚合、SPS、tti bundling、RLC等相关协议和算法,所涉及的专题内容分析非常细致,非常详尽,能很好地帮助读者深入理解LTE物理层相关协议。

    标签: LTE 物理层

    上传时间: 2022-06-01

    上传用户: