mac layer 中文意思是什麼

mac layer 解釋
第二層
  • mac : n. 1. 麥克〈男子名， cf. Mac-〉。2. 〈俚語〉（稱呼用）老兄，老弟，伙計。n. 〈口語〉 ＝ mackintosh. n. 麥克〈男子名〉。
  • layer : n 1 放置者，鋪設者，計劃者。2 【賽馬】（一般）賭客。3 產卵的雞。4 【軍事】瞄準手。5 層；階層；地...
  1. Because of the unique issues in the networks, including mobility - induced disconnection, network partition, high out - of - order delivery ratios and channel errors, the congestion control and the error recovery in the network is challenging. in this environment, the interaction between tcp and mac layer protocols, the affection of route protocols on the performance of tcp and the particular congestion control and error recovery mechanism are first discussed. then a particular transport layer protocol scheme based on the non - feedback mechanism is presented, with emphasis on the analysis and simulation of the key parameter

    文中主要討論了兩種不同網路結構中的無線tcp協議改進方案，其一在最後一跳為無線鏈路的網路環境中，針對基本tcp擁塞控制機制存在的缺陷，文中在現有解決方案的基礎上提出一綜合性的方案，其中包括無線鏈路的高誤碼率和連接斷開問題的解決，並重點對方案中出現的交叉層問題進行分析和模擬；其二，考慮的是分散式網路（ adhoc ） ，在文中較為詳細的分析了tcp和mac層機制間的相互作用、路由協議中造成tcp性能降低的因素、 adhoc網路中應採取的特殊擁塞控制和差錯恢復機制，在此基礎上提出了一種採用非反饋機制的解決方案，重點對方案中的關鍵參數進行分析和模擬，分析和模擬結果表明此機制可在很大程度上提高adhoc網路中tcp的性能。
  2. A developing standard for remote bridging at the mac layer

    正在開發的用於mac層遠端橋接的標準。
  3. Modeling mac layer for powerline communication networks

    電力線通訊網路中媒質接入層的模擬模型
  4. Mac mac layer

    媒介存取控制層
  5. The medium access control ( mac ) layer protocol of the airlink interface between the mobile data base station ( mdbs ) and mobile end systems ( m - ess ) in cellular digital packet data ( cdpd ) is studied firstly. the access method of slotted non - persistent digital sense multiple access with collision detection ( dsma / cd ) is described mainly

    本文首先研究了蜂窩數字分組數據（ cdpd ）空中介面中的介質接入控制層（ mac ）協議，詳細論述了基於時隙的非堅持的、帶沖突檢測的數字載波偵聽多址接入協議（ dsma cd ） 。
  6. In order to save the energy and based on the protocol of ieee 802. 15. 4, we add a timer to maintain the physical and mac layer automatically. our mac protocol can sleep and listen circularly to satisfy the goal of energy saving. in the consideration of the design the software of layers of network and application, we bring forward an idea to fulfill the function of routing and data fusion

    在設計過程中，本文首先基於ieee802 . 15 . 4標準，對物理層和mac層需要符合的標準的ieee802 . 15 . 4協議增加了定時器的自動維護工作，從而形成了我們自己的物理層、 mac層協議，解決了節點的媒體訪問和定時休眠、監聽控制，達到了節能的目的;本文在網路層和應用層協議設計中，提出了路由表維護和數據融合的思想，並進行了設計的實現。
  7. The content of this article is the research on the protocols for wireless communications on the media access control ( mac ) layer, which is a sublayer of the link layer, one of the five layers ( the physics layer, the link layer, the network layer, the transmission layer and the application layer ) which construct the stack of protocols for wireless communications. the emphasis of the research is on the applicability and superiority of two protocols on the mac layer

    本文的研究內容是mac （ mediaaccesscontrol ）層? ?無線傳輸的五層協議棧結構（物理層、鏈路層、網路層、傳輸層、應用層）中數據鏈路層的媒體接入控制子層? ?無線通信協議，重點研究兩種協議在傳感器網路應用中的適用性和優越性。
  8. Ieee practices recommended for bridging ethernet lans at the mac layer. approved in 1995

    Ieee實踐標準，推薦用於mac層以太網局域網橋接， 1995年獲得批準。
  9. In wireless network data link layer is built on the physical layer, and it consists of two part : mac layer and llc ( logic link control ) layer

    在此基礎上進行了無線收發電路的設計和調試。數據鏈路層建立在無線通道之上，包括mac層和llc層。
  10. For a plc network, the length of the mac layer frame is associated not only with the method used in media access control but also with the nature of the interferences, since it suffers from a variety of interferences which are non - periodic and asynchronous

    對于plc網路，由於通道存在嚴重的非周期的異步脈沖干擾，其mac層的幀長度不僅與採用的介質訪問控制方式有關，而且與電力線上的脈沖干擾有關。
  11. Hf manet is a kind of manet that uses short wave channel as the physics medium. mac layer protocols are the core of hf manet to become a network. link layer protocols mainly research on medium access protocol, mac address, automatic link establishment technologies, protocol data structure and data transmission protocol

    鏈路層協議是短波自組織網技術的核心，其主要研究為通道接入協議、鏈路層地址標識、自動鏈路建立、協議幀格式及數據幀傳輸協議等。
  12. 25 zhang b, shirazi m n. implementation of explicit wireless loss notification using mac - layer information. in proc. ieee wireless communications and networking conference, vol. 2, new orleans, usa, march 2003, pp. 1339 - 1343

    1易損耗的無線通道導致了高比特誤碼率，從而引發數據包錯誤甚至無法恢復，發送端就誤認為網路擁塞，導致頻繁進入慢啟動，造成tcp性能下降。
  13. It is an extreme challenge research subject for such network due to the dynamical topology change, bandwidth limitation and power constraint. the state - of - the - art of the manet technology in 5 layer : physical layer, mac layer protocols, routing protocols, transport protocol and application and middle ware issuses are summarized in this thesis. five typical routing protocols dsdv, dsr, tora, aodv and zrp are studied

    本文介紹了移動自組網的起源、特徵和當前的發展狀況，並歸納了其主要的應用領域；分別從物理層、 mac層、路由層、傳輸層、中間件和應用層等5個層次分析和介紹了當前manet採用的技術和協議，尤其對路由協議（ dsdv 、 dsr 、 tora 、 aodv和zrp ）進行了詳細的研究。
  14. Specifically, for the first time all factors impairing tcp performance are identified based on network protocol hierarchy, i. e., lossy wireless channel at the physical layer ; excessive contention and unfair access at the mac layer ; frail routing protocol at the network layer, the mac layer and the network layer related mobile node ; unfit congestion window size at the transport layer and the transport layer related asymmetric path

    Tcp是一種面向連接的可靠傳輸層協議，最初是針對有線網路設計的。由於有線網路鏈路可靠性高，傳統tcp認為丟包和亂序是由網路擁塞所導致。然而，在manets中，眾多非擁塞因素導致了丟包和亂序。
  15. To avoid a terminal occupy channel excessively, access admission - base m - dcf ( aa - mdcf ) and its suggestion model are proposed. by combining subnet bandwidth management and ack mechanism in mac layer together, aa - mdcf can reduce the send rate of ack frame and prevent a terminal consuming wireless resource excessively

    為防止一個終端過多地佔用無線資源，提出了基於接入允許的改進型dcf : aa -入idcf ，通過子網帶寬管理sbm和mac層確認機制的結合，降低ack的發送速率，限制一個終端對無線資源的過度消耗，並給出了建議的實現模型。
  16. In detail, the author narrates the function and working elements of network card, and the signal processing from baseband to if to rf, also the protocol process of medium access control ( mac ) layer

    詳細講述了網卡的功能構成、工作原理、從射頻到中頻到基帶的信號處理過程、以及媒體訪問控制層（ mac ）協議處理方法等。
  17. 14 sun m t, huang l, arora a, lai t h. mac layer multicast in ieee 802. 11 wireless networks. in proc. the international conference on parallel processing icpp 2002, 2002

    簡言之， busy tone是在數據通道之外的一個控制通道上傳輸的無線信號，因為busy tone僅要求能夠被檢測出存在與否，所以傳輸busy tone的控制通道只需要佔用很小的帶寬。
  18. In this chapter, we began with the mac - layer and then briefly explained the three types of ieee 802. 11 physical ( phy ) layers ( frequency hopping spread spectrum ( fhss ) physical layer, direct sequence spread spectrum ( dsss ) physical layer and infrared ( or photonic ) physical layer )

    本章從mac層開始，簡要解釋了三種類型的ieee802 11物理層：跳頻擴譜（ fhss ）物理層、直接序列擴譜（ dsss ）物理層、紅外（或光子）物理層。
  19. Resilient packet ring ( rpr ) is a new solution method to metropolitan area network ( man ). ieee802. 17 working group is developing the rpr standard as a mac. layer protocol independent of physical layer

    彈性分組環（ resilientpacketring ， rpr ）是近年來出現的一種城域骨幹網技術， ieee802 . 17工作組正在進行彈性分組環的標準化工作。
  20. From a large amount of experiment data, we get the conclusion that compared with ieee 802. 11, the protocol of ieee 802. 11e on the mac layer has the characteristics that are more suitable for wsns

    大量的實驗數據得出結論:同ieee802 . 11mac層協議相比， ieee802 . 11emac層協議具有更加適合傳感器網路的特點。
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