Cyclic Prefix Based Single Carrier Frequency Domain Equalizer Design

• Main Authors: Shih-Yuan Hsu, 徐士媛
• Other Authors: Jia-Chyi Wu
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/88581272241043708644

碩士 === 國立臺灣海洋大學 === 通訊與導航工程系 === 98 === To avoid the inter-block interference (IBI) for multipath delay spread in the wireless communication system, we adopt the cyclic prefix (CP) as the guard interval (GI). In addition to the CP base on single carrier frequency domain equalizer (SC-FDE) can provide low complexity of compensating at frequency domain equalizer (FDE). However, the CP will cost the bandwidth efficiency. In this paper, we will adopt the CP to estimate the timing offset, frequency offset and the channel impulse response (CIR) via the repeat characteristic of the CP, so that we can get more channel information and reduce the use of training sequence to achieve save bandwidth efficiency. In order to improve the bit error rate (BER) performance, we use the iterative decision feedback method with CP Based SC-FDE. At the end of the paper, we use Jakes Model to simulate the Rayleigh Fading Channel and compare the method we have discussed.