Low-Complexity Symbol Timing Estimation Algorithm for Wireless Personal Area Networks

• Main Authors: Sung Po Chi, 宋柏奇
• Other Authors: Hung-Ta Pai
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/63581776369005065200

碩士 === 國立臺灣科技大學 === 電機工程系 === 93 === Nowadays, the OFDM system is widely used in different communication systems. For example, wireless network can abate the multipath effect by using guard interval signal in OFDM system. Even though OFDM is suitable for being applied in wireless network, we have to overcome the problem of symbol timing offset. Because symbol timing offset not only ruins the orthogonality among the subcarriers, but also affects the result of DFT computation in receiver. This thesis is to study the delay and correlate algorithm which is the symbol timing estimation algorithm in wireless network. Based on the algorithm and then to simplify its processing, the simplified structure can reduce the computation in symbol timing estimation and good for mobile devices. Finally, we make use of this merit being applied to the IEEE P802.15 system that emphasized the lower power consumption.