phy

this algorithm combined sub-carrier allocation in the physical ( phy) layer with traffic scheduling at the data link layer ( dll) by employing the channel state information.

利用物理层的信道状态信息，该算法将物理层（PHY）的子载波分配同数据链路层（DLL）的数据包业务调度结合起来。

some of these changes are in the physical layer ( phy), in particular in the modulation and multiple access schemes.

这些变化中有些是在物理层，特别是在调制和多址接入方案中。

to achieve large capacity and subscribers' requirements of high-date-rate multimedia service, great breakthroughs in phy layer are supposed to be made for future mobile communication system.

未来移动通信系统要达到大容量的要求，并满足用户高速移动多媒体业务的需求，需要在物理层技术上有所突破。

because of international physical ( phy) layer harmonization, the algorithm can be equally applicable to the other wireless local area network standards.

由于无线局域网物理层的一致性，此方法也适用于其他无线局域网标准。

and this chip contains phy layer, so it can connect to rj45 socket which has built-in transformer directly.

另外该芯片内置以太网物理层可直接连接内置变压器的RJ45插座，而不需要专用的物理层芯片。

Local help phy shows health officials then can plan the best times to vaccinate people.

然后地方的健康官员能计划最佳的时机给人们疫苗.

a cross-layer study of mac layer and phy layer for broadband wireless access system

宽带无线通信系统中MAC层和PHY层联合优化的研究

it introduces the most important part of ethernet-the mac layer and the overall design which includes the design of send module, receive module and implementation of phy.

介绍了以太网中最主要的部分MAC层的原理和总体设计实现，其中包括发送模块的设计，接收模块的设计以及PHY层的实现。

the work in this paper was grounded by the project of wimax phy& mac layer fpga prototype from shanghai research center of wireless communication, china academic science.

本文以中科院上海无线通信研究中心的WiMAX基带FPGA原型系统研制项目为背景，对WiMAX自适应调制编码系统进行了算法研究、性能仿真测试和基于FPGA的硬件实现。

the channel is shared by all nodes in the wireless networks. phy layer provides the wireless channel and mac layer manages the transmission of information over the channel.

所有的无线网络都是共享媒介的，物理层提供了信息的通道，MAC层则定义了信息的传输方式，对网络的性能起非常重要的作用。

the latest draft of 802.11n ( draft 11.0) offers the potential of physical layer ( phy) data rates up to 600 mbps.

在802.11n最近的草案（草案11.0）中，物理层的数据传输速率可达600Mbps。

so it is very important to establish the seamless connection between np and phy.

因此，实现网络处理器与物理层设备的无缝连接就具有重要的现实意义。

the test validated the registers of llc and phy operated correctly, bus connection with testing device established successfully and data traffic accurately.

经过验证，该设计可以实现对总线接口芯片寄存器的正确配置和读取操作；与总线测试设备连接正常，数据通讯正确。

this scheme is proposed to optimize the total system energy, and fulfill the joint cross layer optimization through channel allocation in mac layer and dynamic power allocation in phy layer.

该方案也是通过MAC层的信道资源分配和物理层的动态功率分配的跨层联合优化来实现。

this thesis only studies the upstream of phy layer.

本文的研究仅仅限于PHY层的上行信道。

ofdm phy layer simulation the method of computer system performance simulation

OFDM物理层系统性能仿真分析

this paper explains the ultra-high-speed phy technology offering a viable solution to the technical challenges of streaming video to consumer products over wireless networks.

流视频对消费产品在技术上提出了挑战，而超高速PHY技术对此挑战提供通过无线网络的可行解决方案。

a study on the data streams of the phy sub-layer in the dedicated multimedia fiber industrial network

多媒体光纤工业专用网中物理层数据流的研究

mdio interface module block is an interface that is used in mac level to control and manage phy devices.

MDIO接口模块为以太网接口芯片中MAC层对PHY器件的控制管理接口。

the mac layer and phy layer specifications are defined in wimax standard.

WiMAX标准定义了无线城域网的MAC层和物理层技术规范。

in phy layer, ofdm technique is introduced to guarantee the reliable data transmission in complicated physical environments.

在物理层，采用OFDM等技术为数据在复杂的物理环境中传输提供可靠的保证。

this research is a breakthrough for study of relationship of mac and phy, and is worthy of reference.

此研究是对无线光局域网MAC协议与物理层关系研究的突破，具有重要的参考价值。

the key techniques of multi mode in dual band wlan ( wireless local area network) in phy ( physical) and mac ( medium access control) layers are analyzed.

从物理层和介质访问控制层对双频多模无线局域网的关键技术进行了较深入的分析。

each phy choice depends on the application requirements.

每个PHY的选择取决于应用要求。

The tag tap: aio is used to represent a logical disk based on the image file, while the tag phy represents a physical disk.

标记tap：aio用于表示基于镜像文件的一个逻辑磁盘，而标记phy表示一个物理磁盘。

corresponding to the use of frequency hopping ( fh) technology in phy, a slot synchronization scheme based on fh synchronization is proposed.

在此方案的基础上，考虑到物理层采用跳频技术，提出了一种利用跳频同步的时隙同步方案。

algorithms are presented to design universal test& operations phy interface for an atm ( utopia) level-4 interface in a ten gigabit ethernet access system.

为了解决10G以太网接入系统中ATM通用测试及操作物理层接口（UTOPIA接口）的设计问题，提出了并行状态机的设计方法。

it emphasizes the specific design methods of phy level and mac level and gives the software realization methods of network functions.

重点研究了PHY层和MAC层的具体实现方法，给出了网络功能的软件实现方法。

design and realization of the interface protocol of the pos-phy level 4 based on fpga

PL4接口在FPGA中的设计与实现

modeling and simulation for the phy of the ofdm-based wlan system

OFDM-WLAN系统的物理层建模与仿真