無線接入協議 的英文怎麼說
中文拼音 [wúxiànjiērùxiéyì]
無線接入協議
英文
wireless access protocol- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 入 : Ⅰ動詞1 (進來或進去) enter 2 (參加) join; be admitted into; become a member of 3 (合乎) conf...
- 協 : Ⅰ形容詞(共同) joint; common Ⅱ動詞(協助) assist; help; aid
- 議 : Ⅰ名詞(意見; 言論) opinion; view Ⅱ動詞(商議) discuss; exchange views on; talk over
- 無線 : wireless無線電報 wireless telegram; radiotelegram; 無線話筒 radio microphone ; 無線裝訂 unsewn binding
- 接入 : insert; join up; switch on; cut over; turn on; switch in; reset; put in; place in; cut in; throw ...
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Indoor wireless optical local area network ( wlan ) has advantages of wide bandwidth, strong anti - jamming and good handiness. it is the best resolution for future communications : mobility, personality, and multimedia application, and will have wide applying foreground. how to use the network bandwidth resource fairly and effectively is key to qos guarantee
在室內無線光通道中,如何公平、高效地利用網路帶寬是保障局域網通信可用性、可靠性和服務質量的關鍵所在,也正是無線光局域網媒質接入控制( mediumaccesscontrol , mac )協議需要解決的核心問題。The design built the wireless lan application platform with the modes of switching in the wireless lan and bar - code scan technology of wireless hand terminal ; made ap switch in warehouse exchanger by lineate method to get in lineate lan of the corporation, and joined the wireless lan into lineate lan by the wireless hand terminal communication to ap with protocols
整個硬體環境設計採用了無線網路接入方式和無線手持終端、條碼掃描技術建立無線網路應用平臺, ap以有線方式接入立體倉庫交換機與企業有線網路接通,無線手持終端通過協議與ap通信實現無線網路與有線網路連通。A qos - support protocol, m - dcf, and its schedule model are proposed. by providing different contention window for different classes, the higher class frames the higher access probability. the simulation proves that m - dcf has better performance than dcf protocol on system throughput, discard ratio, frame discard ratio of higher classes, average access delay of different classes
提出了為不同等級幀提供不同競爭窗口的改進型dcf : m - dcf協議,並給出了m - dcf的調度模型,通過採用不同的競爭窗口,為不同n西安電子科技大學博士學位論文:無線局域網和ip服務質量關鍵技術的研究的應用提供了不同的接入概率,保證了qos ;模擬結果證明了m一dcf在系統吞吐率、丟包率、高等級業務丟包率、不同等級業務的平均接入時延等方面都優于dcf協議。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。But traditional fieldbus has been widly used in factory field and will act an important part for a long time, so it is necessary that to realize fieldbus connect to office network, make it has the capability of inter - connection and inter - operation, and keep it ’ s architecture unchanged. the paper discusses a method to slove the problem. that is making use of ethernet / ip protocol which is one of industrial ethernet protocols, to design an embedded fieldbus gateway. the gateway mainly consists of s3c2410, a 32bit high performance microprocessor based on arm core, to realize interconnection devicenet network, controlnet to ethernet
本文提出利用高性能、低功耗32位risc結構的arm處理器與armlinux嵌入式操作系統相結合,並利用ethernet / ip工業以太網協議構造嵌入式網關,實現設備的現場總線與企業信息網路無縫鏈接,並保證了devicenet和controlnet兩種網路的互操作性,構建一個可跨地域共享、便於實現高層次集中管理、監控和決策的新型嵌入式實時在線監控網路。Based on 3gpp standard, the author analyzed and researched the higher protocol layers of radio interface in wcdma, including radio resource control layer ( rrc ), medium access control layer ( mac ) and radio link control layer ( rlc ), in which, the rlc is emphasis
依據3gpp協議,作者對wcdma空中介面的高層協議部分進行了分析和研究,包括無線資源控制層( rrc層) 、媒體接入控制層( mac層)和無線鏈路控制層( rlc層) ,其中,對rlc層進行了重點研究。Optical code division multiple access ( ocdma ) technology possess the characteristics of combating interference, high frequency efficiency, security, and simply network protocol, random access, so it is competitive to apply ocdma to wireless optical access network
光碼分多址( ocdma )技術具有的抗干擾能力強、頻率利用率高、保密性好、網路協議簡單、支持隨機接入等優點,將其應用到無線光接入網中,不僅具有cdma技術的優點又保持了無線光通信的優點,實現二者優勢互補。The reliability of software is analyzed at the same time. then the mac protocols of prn is studied. a kind of modified r - nad algorithm based on 220b is put forward and emulated in the paper
再后,研究了分組無線網多址接入協議,分析了幾種多址協議的實現方法和性能,還根據軍標220b提出了一種修正的r - nad接入方式,並進行了計算機模擬。We firstly study some aspects, such as the modulation ( ofdm ) in the physical layer and the media access control ( mac ) protocols, combining reliable data transmission with high - throughput access methods and real - time, quality - of - service ( qos ) features. some problems exist in tcp applications over plc, because the high bit error rate makes it difficult to estimate the round trip time ( rtt ) and causes unnecessary retransmission
通過對現有的兩種產品( homeplug和inari )的mac協議:類似無線通訊csma ca協議(以競爭為基礎)和集中式的令牌環( ctp )協議(避免競爭)的媒質接入控制的原理進行分析和計算,對兩個協議進行了性能評價及分析了它們對qos的支持。The design and realization of ranap plays a very important role in the independent development of the third generation mobile communication system device of our china. the system utilizes finite state machine ( fsm ) as the basement of system design and realization.
無線接入網路應用部分( ranap )協議軟體是第三代移動通信信令處理協議棧的重要組成部分,它的設計和實現為國家早日實現自主生產的第三代移動通信設備具有重要的意義。With the rapid development of wireless communication technology and computer technology , people wish to get reliable data communication service any time and any where. traditional network can not supply communication service if the whole network need to move because the network devices are fixed by wires and can not move. so, ad hoc network comes. it can provide mobile data communication service compared with traditional network. ad hoc is a network with plat structure and all the nodes is equal. all the nodes need provide relay. but not all the nodes will provide relay and the performance of plat structure is poor in large scale. so the wireless mobile self - organized network adopts a two - level structure by referencing the cell mobile communication system. wmsn uses wireless routers to construct network. it can provide wireless access, relay services to users
考慮到不是所有的站點都願意提供中繼服務及平面結構的局限性(在網路規模較大時性能會很差) ,本課題的無線移動自組織網路參考了蜂窩移動通信系統的特點,是一種具有兩級結構的網路。使用專門的無線設備? ? 「無線路由器」構成具有用戶無線接入、無線組網和路由功能的無線互連網路,為移動用戶提供無線接入、路由和中繼服務。 ieee802 . 11b可以提供很高的通信速率,可以提供很好的接入性能,並且支持ieee802 . 11b協議的設備正成普及的態勢,因此成為我們所選擇的鏈路層協議。16 hanbali a a, altman e, nain p. a survey of tcp over mobile ad hoc networks. available at http : www. inria. fr rrrt rr - 5182. html, may 2004. 17 jain s, lv y, das s r. exploiting path diversity in the link layer in wireless ad hoc networks
我們指出,這些非擁塞因素包括易損耗的無線通道mac層中的過度競爭和不公平接入節點移動脆弱的路由協議不適合的擁塞窗口不對稱路徑。Based on the studies of gprs streaming service model, radio access network communication protocol and qos related specification of 3gpp, we discussed the scheme of streaming traffic in ( e ) gprs radio access network, including mainly qos management module such as access control, flow control and scheduling
通過對3gpp中gprs流業務服務模型、無線子網路的通信協議以及qos相關規范的研究,討論了具體流式數據業務傳輸在( e ) gprs無線接入網路中實現方案,包括接入控制、調度控制和流量控制等主要qos管理控制功能模塊。The high layer signaling - radio access network application part ( ranap ) is a very important part of iu intertface in the third generation mobile communication system. it is designed and realized in this paper. we are mainly in charge of the side of radio network controller ( rnc )
本文主要介紹了第三代移動通信系統( wcdma )中無線網路控制器( rnc )側的iu介面的高層信令無線接入網路應用部分( ranap )協議的軟體設計與實現方案。In wireless self - organized network ( ad hoc network ), media access control ( mac ) protocol, which defines rules of how nodes can share channel with each other, is a key factor of improving the performance of ad hoc network
在無線自組織網路( adhoc網路)中,媒體接入層協議( mac協議)控制著節點之間共享通道的規則,是提高adhoc網路性能的關鍵因素之一。3. broadcast is an important operation in wireless ad hoc network. the simple broadcasting mechanism, known as flooding is easy to realize but can cause the broadcast storm problem
Fa - maca協議不僅可以避免無線通道中存在的「隱藏終端」問題,而且根據網路的實時情況,調整接入時延,盡可能的減少碰撞,為高優先級業務提供了良好的qos保證。At first, the dissertation introduced features of mobile - internet and wap, which is designed to overcome the shortcomings of wireless networks. a framework of client wap protocol stack was designed and the connectionless mode of wap was implemented. then, several key technologies of streaming were introduced
文章首先對使用無線接入技術的移動網際網路進行了討論,從無線技術和嵌入式技術本身的固有缺陷兩個角度闡述了移動網際網路的特性,然後研究了專門針對移動網際網路應用設計的無線應用協議,並設計、實現了基於嵌入式linux系統的無連接模式wap 。Besides, this paper studies the wireless optical code division multiple access ( w - ocdma ) technology whereas its anti - jamming, security and asynchronism. based on the w - ocdma communication technology, we analyzes ocdma mac protocol, studies the protocol theory, access mechanism in detail, and models the throughput performance, simulates and analyzes the performance
( 3 )鑒于無線光碼分多址( wirelessopticalcodedivisionmultipleaccess , w - ocdma )技術的抗干擾、保密和隨機異步接入的優點,本文分析了基於ocdma接入的無線光局域網mac協議,闡述了協議原理和接入機制,用馬爾可夫模型對吞吐量性能進行了建模和模擬計算。Based on the idea of contention reservation access and polling transmission, user - dependent perfect - scheduling multiple access ( upma ) protocol is presented, which supports both node mobility and multi - hop network architecture. it improves channel utilization greatly and guarantees that a node accesses the channel rapidly
基於有效競爭預約接入、無沖突輪詢傳輸的思想提出了在無線adhoc網路中支持節點移動性和多跳網路結構的依據用戶妥善安排的多址接入( upma )協議。Aiming at the wireless optical channel and operation characteristics, carrier sense multiple access / collision avoidance ( csma / ca ) mac protocol is put forward taking into account the bit error rate ( ber ). this paper studies the protocol theory, access mechanism detailedly, and models the throughput performance, simulates and analyzes the performance. the paper analyzes the performance influence factors such as ber, transmit probability, number of the terminals, initial windows, retry limit and so on
( 2 )針對無線光局域網的通道特性及業務特徵,在考慮通道誤碼率影響的基礎上,分析了基於載波監聽/沖突避免( carriersensemultipleaccess / collisionavoidance , csma / ca )接入的無線光局域網mac協議,詳細闡述了協議原理和接入機制,用馬爾可夫模型對mac吞吐量性能進行了建模,並進行模擬計算和分析,詳細討論了在基本接入機制和rts / cts接入機制下,通道誤碼率、終端發送概率、終端數、初始化窗口、重傳極限等參數對吞吐量性能的影響,同時對兩種接入機制性能進行了比較分析。分享友人