protocol bit 中文意思是什麼
protocol bit
解釋
規約位-
The communication cost for one round execution of the protocol is 2mk, where k is bit length of public key n and m is the number of users in the group
執行協議每輪需要的通信量為2mk ，其中k為公鑰n的比特長度， m為群體用戶的個數。 -
For video codec, after analyzing and researching the newest standard h. 264, an efficiency algorithm was proposed in this paper using self - feature, spatial correlation and temporal correlation to judge the encoding mode of one macro - block. through this method, the best prediction mode can be obtain before encoding, then, the coding time can be reduced dramatically with a little expense of bit - rate. for video transmission, in this paper, a transmit method was proposed using tcp / ip protocol under the environment of local networks
首先，在分析及研究最新的視頻編碼標準h . 264的基礎上，利用宏塊自身的特點和其時間、空間的相關性來判斷宏塊應該採用的編碼模式，從而提前得到該宏塊的最佳編碼模式，新方法有效地克服了原標準演算法中窮舉式的復雜演算法，在壓縮碼流只有少許增加的情況下，大幅度地提高了幀內及幀間編碼的速度。 -
Using an 8 - depth async fifo solves the synchronization and exchange of data be - tween different clock domains. the data transaction protocol comes from the most basic work way of uart. when the master clock is 16. 7mhz, the pcm side and adpcm side clocks both are 2. 38mhz, the results of simulation show that the latency from the start - bit of pcm data inputting uart receiver to the stop - bit of adpcm data outputted uart transmitter is 14. 3 us and the latency from the start - bit of adpcm data inputting uart receiver to the stop - bit of pcm data outputted uart transmitter is 14. 7 us
在主時鐘為16 . 7mhz ， pcm數據端與adpcm數據端時鐘均為2 . 38mhz時，模擬結果表明從pcm的起始位輸入uart接收器到adpcm終止位輸出uart發送器的最大延遲為14 . 3 s ，從adpcm的起始位輸入uart的接收器到pcm終止位輸出uart發送器的最大延遲為14 . 7 s ，設計時盡可能的使編碼與解碼的時間相差不多，從結果看出基本達到這個要求。 -
After data decoding, this paper analyzes the structure of transfer frame and source packet. the information of every bit is obtained from the frame and packet according to ccsds protocol and furthermore discusses the possibility of recovering the every data field bit ’ s meaning
在得到解碼數據后自動對數據幀格式和比特位的信息識別分析，實現了符合ccsds標準格式的各信息位的提取分析，並探討了完全恢復原信息含義的可能性。 -
Similar to asama protocol, qasama protocol applies ppo and go algorithm, but qasama protocol also considers the requirements of packet delay, packet drop rate, bit error rate ( ber ), traffic capacity and channel utilization, and integrates these requirements into the slot allocation procedure
在qasama協議中，綜合考慮了分組時延，分組丟棄率，誤碼率，業務容量以及通道利用率方面的要求，並將這些要求與多波束智能天線的特點及自適應時隙分配過程有機地結合起來。 -
Then, we proposed a new qos protocol, qgr, based on the greedy geographic routing and dynamic source routing. qgr protocol searches the best route for the packet using energy 、 packet delay and bit error rate of manet as qos parameter
Qgr協議是一種qos路由協議，以傳感器網路的能量、延遲、位錯誤率等特徵作為qos參數，實現相對于某一種參數最優的路由路徑的查找。 -
In this paper, we deal with the problem of a distributed implementation of ospf protocol to t bit router with scalable architecture
本文研究了ospf協議在具有可擴展對稱結構的t比特路由器上分散式實現問題。 -
The main contributions of the thesis are : ( 1 ) we present an end - to - end transport architecture using the rtp / udp / ip protocol stack and employ an efficient and robust packetization algorithm for mpeg - 4 video bit - streams at the sync layer for internet transport. ( 2 ) we study the congestion control mechanism based on aimd algorithm, and make improvement in order to reduce the oscillation of transimition rate due to tremendous contrast of packet loss ratio caused by dynamical change of the network load
論文的主要貢獻在於：提出了基於rtp的mpeg - 4視頻傳輸模型並充分利用mpeg - 4的videoobjectplane （ vop ）特性，採用適用於mpeg - 4視頻傳輸的rw載荷格式及組包演算法，同時具有傳輸的高效性和丟包的魯棒性。 -
H. 323 is an itu standard which provides several services including speech, data and multimedia etc. being a speech compression coder protocol supported by h. 323, g. 729 has the advantages of low bit - rate and high speech quality and been selected by itu - t as 8kb / s standard
G . 729做為h . 323支持的語音壓縮編碼協議，具有低延遲，高語音質量的優點，被itu確定為8kb / s語音編碼標準。 -
Based on the research of videoconference systems of h. 323 protocol over ip networks and the author ' s experiences of implementing h. 323 videoconference systems in remote education area, in this thesis the main factors that affect videoconference quality are analyzed, and a dynamic bit rate allocation model is proposed and partly implemented. this model is designed to dynamically allocate bit rate for multi - media data flow ( including audio data and video data ) in fixed bandwidth network environment. when continuous multi - media packet losses are detected in ip based h. 323 videoconference system, the bit rate of video data is adjusted meanwhile the bit rate of audio data remains unchanged, and the bit rate allocation of multi - media data ( including audio data and video data ) is optimized as a whole effect
本文結合作者在h . 323視頻會議系統應用於遠程教育的經驗，通過對現有的基於ip網路的h . 323協議視頻會議系統的研究，分析了影響視頻會議質量的原因，提出並部分實現了在固定帶寬的網路環境下，基於ip的h . 323視頻會議的多媒體數據包發生丟包、抖動或延時時，保持音頻數據位速率不變，通過對視頻數據的位速率的進行調整，最終實現旨在提高視頻會議語音質量的多媒體數據位速率動態調整的模型。 -
The result shows that the new one could run as fast as the old, while offering much hight security insurance. the output bit flow of the new has a good randomicity that is quite useful for preventing hacking. due to the scarcity of technologies and reference, the new protocol has its shortcomes
模擬的結果顯示，新的網路交易安全協議的運行效率和原有的ssl協議非常接近，卻能提供比後者更高的安全性，黑客所能監聽到的只是高度隨機的bit流，從通信原理上來講，對其進行破解具有相當難度。 -
Simulation results reveal that ipos protocol could solve the problem of high error bit rate with adoption of the error control scheme in the data link layer and adaptive coding modulation
模擬結果表明， ipos協議通過採用鏈路層差錯控制和自適應編碼調制方法，解決了衛星通道的高誤碼率現象。 -
In this thesis, firstly, the main protocols and their functions, the application profiles of bluetooth technology are introduced. the hci protocol is analysized emphasesly ; secondly, the 4 - channel 10v analog to digital conversion ( a / d ) bluetooth adapter, 4 - channel 10v digital to analog conversion ( d / a ) bluetooth adapter, rs232 serial port bluetooth adapter are developed. the hardware and software of them are realized and test ; thirdly, the test tool software for bluetooth adapter is designed. the displaying and saving of data with vc + + 6. 0 multithread in pc is completed, then the wireless serial port communication between pc and micro - controller unit ( mcu ) is implemented, the data results of those adapters are acceeded ; finally, the bit - error - rate testing software of bluetooth communication system is designed, and the bit - error - rate test results of bluetooth adapter in labortary are acquired and illustrated also
其次提出了硬體設計方案:四通道10v模擬/數字（ a / d ）藍牙適配器、四通道10v數字/模擬（ d / a ）藍牙適配器， rs232串口通信藍牙適配器。在此基礎上完成了硬體電路和軟體程序的設計和調試。再次，設計了藍牙適配器測試工具軟體，在pc機上用vc6 . 0 + +多線程編程完成對傳輸數據的保存與顯示，實現了pc機與單片機的串口無線通信，並給出了藍牙適配器測試結果。 -
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。 -
Based on the detail of traditional tcp, the reason of the low throughput and impaired performance of tcp in wireless networks is given, then some solutions are proposed based on the transmission control principle. moreover the impactions of protocols in the lower layers including mac and routing protocol on tcp in ad hoc network are discussed in detail, and 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 investigated. in this environment an integrated wireless tcp, called iwtcp, is presented to solve the problem about higher bit error rates and disconnection, which emphasizes on the analysis and simulation, the results show that the scheme can greatly improve the performance of tcp, and the realization of iwtcp is given at last
文中主要針對分散式adhoc網路，由於其獨特的網路結構，所以我們在分析tcp基本原理的基礎上，討論了傳統tcp在無線環境中吞吐量較低、性能惡化的原因，並闡述了無線環境對擁塞控制機制提出的要求，同時就adhoc網路中低層網路協議（ mac層和網路層協議）對tcp的影響進行了詳細的分析，強調tcp和mac層機制間的相互作用、路由協議中造成adhoc網路中tcp性能降低的原因，並針對現有無線tcp方案不能有效應用於有線無線網路的問題，提出了應用在adhoc網路和internet網路互聯環境下的一種綜合性tcp解決方案? ? iwtcp ，重點對該方案的性能進行模擬，從理論上分析了性能提高的主要原因，並證明此機制可在很大程度上提高adhoc網路中tcp的性能，最後給出了iwtcp具體軟體實現方案。
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