張建緯

• Main Author: 張建緯
• Other Authors: 陳棟洲
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/36780300868833692196

碩士 === 中華大學 === 電機工程學系碩士班 === 92 === For the future, the standards of WLAN systems will be focused on the high data throughput. The IEEE 802.11a system operates on the 5GHz band and can provide several data rates form 6Mb/s to 54 Mb/s according to different channel quality. Thus, it must attract the public notice. The aim of this thesis is to investigate the effect on the hardware complexity and system performance of the baseband transceiver caused by the number of quantization levels of soft-decision Viterbi decoding for the IEEE 802.11a system. First, a MATLAB simulation environment for the baseband transceiver of the IEEE 802.11a system will be developed. Based on the MATLAB simulation environment, the system performance will be simulated and analyzed. Secondly, for the scrambler/descrambler,interleaver/deinterleavr, and subcarrier modulation mapper/demapper of the baseband transceiver,the FPGA hardware implementation will be completed . Finally, The effect on the system performance and hardware complexity of the baseband transceiver caused by the number of quantization levels of soft-decision Viterbi decoding is analyzed and discussed.