Reduced Complexity of Volterra Equalizer in Long Reach PON system employing LASSO and QR decomposition
| Autor: | Lu, Shao-Yu, 呂紹宇 |
|---|---|
| Rok vydání: | 2017 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 105 Nowadays, technology and science are rapidly progressing and there is a trend of fast growth in metro traffic from 2014 to 2019. In order to meet the demand of broadband and high quantity of data transmission, long reach passive optical network(LR-PON) is considered to be the most promising candidate to meet the standard of next-generation passive optical network two(NGPON2). Furthermore, orthogonal frequency-division multiplexing long reach passive optical network(OFDM LR-PON) is regard as a hopeful solution to economically build a high-capacity and wide-coverage access network because of having low computation complexity.However, the nonlinear distortion in the system is a problem need to be solved. As a result, Volterra filtering technique is introduced to compensate the nonlinear distortion. One important factor that limits the applicability of Volterra filter is the computation complexity. Therefore, we provide two different solution to reduce the computation complexity of volterra and form two sparse volterra filter. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|