The first level adjustment, which happens at the transport layer of sensor nodes and cluster nodes, is used to adjust tolerable error rate and coefficient for event data rate.

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Due to the fact that the intercarrier spacing in OFDM is relatively small, OFDM transceivers are somewhat more sensitive to phase noise compared to single carrier transceivers. Thus this problem must be carefully considered in designing an OFDMbased system since an accurate prediction of the tolerable phase noise can allow designer to relax system specifications. According to spectrum theorem, two components of phase noise were analyzed: common phase error and intercarrier interference. On the basis of the analysis, the performance of OFDM was given for the case where phase noise has been added to the signal, and an optimal design criterion for OFDM parameters was proposed that allows to improve the phase noise error correcting capabilities in OFDM receiver.

由于采用子載波間相互正交的結(jié)構(gòu)欧美在线网址，OFDM系統(tǒng)對于由本地振蕩器不穩(wěn)定性所導致的相位噪聲影響非常敏感国产精品黄色视频哪里有，針對公共相位誤差CPE和載波間干擾ICI兩種影響表現(xiàn)形式不同的干擾項毛片网址免费，從功率譜密度函數(shù)這一獨特角度分析了相位噪聲對OFDM系統(tǒng)性能的影響，提出了旨在提高接收機抵抗相位噪聲能力的OFDM系統(tǒng)關(guān)鍵參數(shù)優(yōu)化與設(shè)計準則日韩可以在线观看的黄色网站，可在對所設(shè)計OFDM系統(tǒng)性能加以提高的同時色色色色色色片，有效降低對接收機前端模擬振蕩器件和相位噪聲抑制單元的性能指標要求，從而降低接收機硬件實現(xiàn)成本无码国产网。

tolerable error：可容忍誤差

351 timing 定時 | 352 tolerable error 可容忍誤差 | 353 trade accounts payable and purchases 貿(mào)易應(yīng)付帳款和買

tolerable error：重要性

探頭:deflection error forecast | 重要性:Tolerable Error | 脫靶量:Undershoot error

tolerable error：可容忍誤好

95.statistical sampling 統(tǒng)計抽樣 | 96.tolerable error 可容忍誤好 | 97.the risk of under reliance 信任沒有腳威嚴夷