1) hidden & exposed terminal
隐藏/暴露终端
1.
It presents a Tri-channel-based MAC scheme in Ad Hoc networks to resolve the hidden & exposed terminal problem.
给出一种基于三信道协作的方案TCMAC(Tri-channel-based MAC(媒体访问控制)),解决了已有MAC方案中具备收发条件的隐藏/暴露终端不能合理建立链路的问题,使节点能够相对及时地接入信道。
2) exposed terminal
暴露终端
1.
The formation of exposed terminal problems is expanded in this paper.
阐述了 S-TDMA系统中暴露终端问题的形成 ,给出了解决这一问题的一种方案。
2.
In order to resolve the hidden terminals and exposed terminals problems and improve the ratio of channel in ad hoc networks,this paper proposd a new MAC protocol named NSBMA,in which each node modifies state values of sending and receiving for every time-fragment according to neighbors time-scheduling and nodes reserve time-fragments based on state values.
仿真结果表明,NSBMA协议比MACA和TRAMA协议在更大程度上解决暴露终端问题,提高了网络吞吐量。
3.
In the MAC layer s research, there’re some key technical problems need to be solved, including hidden terminal problem, exposed terminal problem and fairness problem, as well as QoS guarantee, rate adaptation and so on.
在MAC层的研究中,有一些关键的技术问题有待解决,包括隐藏终端和暴露终端问题,公平性问题,QoS保证,速率自适应等。
3) hidden terminal
隐藏终端
1.
In the MAC layer s research, there’re some key technical problems need to be solved, including hidden terminal problem, exposed terminal problem and fairness problem, as well as QoS guarantee, rate adaptation and so on.
在MAC层的研究中,有一些关键的技术问题有待解决,包括隐藏终端和暴露终端问题,公平性问题,QoS保证,速率自适应等。
2.
First,the hidden terminal problem and exposed terminal problem in Ad hoc network are analyzed,then,a new channel access protocol—NISCAP(node information stack channel access protocol) is presented,based on the node information stack.
AdHoc网络是共享无线传输媒体的多点网络,首先研究了AdHoc网络存在的特有的隐藏终端和暴露终端问题,围绕结点信息栈,提出了一种新的AdHoc网络信道接入协议——NISCAP(nodeinformationstackchannelaccessprotocol)。
3.
In detail analyzes the problems such as hidden terminal,exposed terminal and t he fairness issues of channel access and proposes the solutions of its MAC layer and introduces the hot research of some MAC protocols.
文章详细分析了移动自组网MAC层的隐藏终端、暴露终端和信道访问的公平性问题以及解决方案,并介绍了当前一些MAC层协议的研究热点。
4) hidden nodes
隐藏终端
1.
Modeling analysis of multi-hop wireless networks using IEEE 802.11e protocol with hidden nodes;
存在隐藏终端的IEEE802.11e多跳无线网络模型分析
2.
These conclusions show that RE-NAD can solve the problems of hidden nodes and exposed nodes.
验证了RE-NAD能从一定程度上解决隐藏终端和暴露终端的问题。
5) exposed terminal problem
暴露终端问题
1.
An improved multi-channel media access control(MAC) protocol was developed to solve the erroneous reservation problem(ERP,the hidden terminal problem(HTP and the exposed terminal problem(ETP caused by the IEEE 802.
11 M AC协议存在的“错误资源预留问题”(ERP)、“隐藏终端问题”(HTP)以及“暴露终端问题”(ETP),提出了一种改进的多通道媒体接入控制(m ed ia access con tro l,M AC)协议(M CM AC)。
6) hidden terminal problem
隐藏终端问题
1.
An improved multi-channel media access control(MAC) protocol was developed to solve the erroneous reservation problem(ERP,the hidden terminal problem(HTP and the exposed terminal problem(ETP caused by the IEEE 802.
11 M AC协议存在的“错误资源预留问题”(ERP)、“隐藏终端问题”(HTP)以及“暴露终端问题”(ETP),提出了一种改进的多通道媒体接入控制(m ed ia access con tro l,M AC)协议(M CM AC)。
补充资料：Pm和隐藏式pm7.62mm狙击步枪
Image:11557266295155940.jpg
pm和隐藏式pm7.62mm狙击步枪
中文名称: 英国pm和隐藏式pm7.62mm狙击步枪
研制国别: 英国
研制机构: 精密仪器制造公司
分类: e922.12
关键词: 枪械 步枪 陆军装备
简介
pm7.62mm狙击步枪是英国精密仪器制造公司为执行狙击任务而研制的步枪，其设计思想是：不管枪管清洁是与否，都要做到首发命中。
pm 7．62mm狙击步枪系统主要有步兵用、警用和隐藏式3种。步兵用pm狙击步枪已装备英国陆军，被命名为l96a1式，非洲、中东和远东一些国家的陆军也装备有此枪。
警用pm狙击步枪采用单发射击方式，可发射多种口径马格努姆枪弹。1000m距离内使用0．300in温彻斯特马格努姆和7mm雷明顿马格努姆枪弹，1000m以外距离使用8．6mm枪弹。
带消声装置的pm狙击步枪也在生产，这种枪发射特种亚音速弹，在300m射程内弹道较低伸、风偏不大的情况下，命中率较高。
隐藏式pm 7.62mm狙击步枪是pm狙击步枪系统的最新型，也是带消声装置的pm狙击步枪的可拆卸型，已投入批量生产。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。