Autoregressive modeling for flat fading channel simulation 模型的平坦衰落信道仿真
Mimo ; order statistics ; flat fading ; gamma distribution Mimo順序統(tǒng)計(jì)量平坦衰落gamma分布
Statistical distributions of mimo channels over flat fading 平坦衰落mimo信道的能量統(tǒng)計(jì)特征分析
When transmitting signal is below 500 kbps , increasing the system power can reduce the bit error rate ( ber ) for the signal suffering only flat fading 當(dāng)碼速率較低時(shí)( 500kbps以下) ,信號(hào)受到平坦衰落,增大系統(tǒng)功率可以降低系統(tǒng)誤碼率。
Subsequently the channel was modeled for three types namely additive white gaussian noise , flat fading and frequency selective fading . lastly , the receiver was studied 接下來信道建模成三種不同的類型,即加性高斯白噪聲信道、平坦衰落信道和頻率選擇性衰落信道。
If the assigned spreading codes are orthogonal and signals are transmitted through a flat fading channel , there will be no multiple access interference ( mai ) 如果所有用戶采用理想正交擴(kuò)頻碼并且通過同步平坦衰落信道,系統(tǒng)中將不會(huì)存在多址干擾( mai : multipleaccessinterference ) 。
Based on the research of mimo detections under the flat fading channel , this paper focuses on the mimo detection under the frequency selective fading channel , chiefly aiming at the lll detection algorithm 在對(duì)平坦衰落信道下mimo檢測技術(shù)研究的基礎(chǔ)上,本文展開了對(duì)頻率選擇性信道下mimo檢測技術(shù)的研究。
While this dissertation will use wavelet analysis to decompose fading - process , and provide wavelet model of flat fading channel , then propose a new blind receiver based on monte carol algorithm 本文將平衰落信道的衰落過程進(jìn)行小波分解與建模,在此基礎(chǔ)上提出一種采用順序蒙特卡羅算法的盲均衡接收機(jī),并給出了仿真結(jié)果以證明此接收機(jī)的優(yōu)異性能。
And the most advantage of ofdm is that it can convert high - rate data stream into the low - rate and reduce data bandwidth so that multi - path - fading can be transformed into flat fading in wireless circumstance 這種調(diào)制技術(shù)的最大的好處就是將高速的數(shù)據(jù)流,變換成并行的低速數(shù)據(jù)流,減小了數(shù)據(jù)帶寬,從而可將無線環(huán)境中的多徑衰落(頻率選擇性率落)轉(zhuǎn)換成平坦衰落。
Then this paper makes some overview and simulation on the application of three precoding algorithms under the flat fading channel , which are linear preequalization , tomlinson - harashima precoding ( thp ) and lattice reduction - aided ( lll ) vector precoding 本文對(duì)三種常見的預(yù)編碼算法在平坦衰落信道下的應(yīng)用進(jìn)行了綜述和仿真研究,包括迫零線性預(yù)均衡、 thp預(yù)編碼和格約簡輔助矢量預(yù)編碼等算法。