信元失效比 的英文怎麼說
中文拼音 [xìnyuánshīxiàobǐ]
信元失效比
英文
cfr cell failure ratio-
In the proposed method, the controller takes the buffer length as congestion indication, takes sources quality and bandwidth utility as object function so as to learn on line. as the controller outputs, the coding rate for input traffic sources and the corresponding user percentage are used to adjust the cells " arrival rate to the multiplexer buffer. compared with the previous method where cells " arrival rate is tuned only by the encoding rate and the encoding rates for all input traffic sources are regulated in a body, the proposed method guarantee that the quality of cells are optimal while cell loss rate is minimized, which means quality of service is guaranteed
在該方法中，擁塞控制器以緩沖區大小信元作為擁塞指示，以信源質量和帶寬利用率作為目標函數進行在線學習，控制器輸出包括信源編碼率及其對應的用戶數在全部用戶中所佔的百分比，即根據信源編碼率及對應的用戶百分數調整信源輸入流，從而克服了以往擁塞控制方法中僅僅調整編碼率帶來的對所有信源進行整體調整的缺陷，使控制系統在信元損失率最小情況下確保信源輸入流質量最高，從而有效地利用了網路帶寬。The new algorithm integrates the benefit of the average likelihood ratio algorithm with higher correct classification probability and that of the standard general likelihood ratio algorithm with low computation complexity, meanwhile, overcomes the invalidation problem of standard general likelihood ratio algorithm, when there are including relations between constellation sets of communication signals to be recognized
新方法結合了平均似然比分類性能好和標準的廣義似然比分類計算量小的優點。同時解決了信號碼元集合存在包含關系時，標準的廣義似然比分類演算法的失效問題。However, when the system sample number and the number of antenna array elements are finite, or snr is low and the incident signals are correlated or coherent, the performance of the algorithm sharply decreases and the algorithm even becomes invalid
但是當系統樣本數、天線陣元數有限，信噪比較低以及入射信號為相關或相干信號時，演算法性能急劇下降甚至失效。
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