| 一种改进的CCK调制解调方案与FPGA实现 |
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| 引用本文： | 杨震,崔丙锋,王亚丹,丁炜. 一种改进的CCK调制解调方案与FPGA实现[J]. 北京邮电大学学报, 2004, 27(3): 33-37 |
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| 作者姓名： | 杨震 崔丙锋 王亚丹 丁炜 |
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| 作者单位： | 北京邮电大学继续教育学院, 北京100876 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 提出了一种新的802.11b无线局域网物理层调制解调方法,可以把传输速率提高到17.6 Mbit/s。基于多相位补偿码理论,给出了16 bit补偿码的表达式和在加性高斯白噪声信道下的性能分析。计算机仿真结果表明,16 bit补偿码比802.11b标准中8 bit补偿码具有更好的性能。最后给出了解码的FWT(fast Walsh transform)算法以及调制解调系统的现场可编程门阵列(FPGA)硬件实现。
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| 关 键 词： | 补偿码解调 无线局域网 现场可编程门阵列硬件实现 |
| 文章编号： | 1007-5321(2004)03-0033-05 |
| 收稿时间： | 2002-04-08 |
| 修稿时间： | 2002-04-08 |
An Improved Option of CCK Modulation and Demodulation and Its Implementation with FPGA |
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| YANG Zhen,CUI Bing-feng,WANG Ya-dan,DING Wei. An Improved Option of CCK Modulation and Demodulation and Its Implementation with FPGA[J]. Journal of Beijing University of Posts and Telecommunications, 2004, 27(3): 33-37 |
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| Authors: | YANG Zhen CUI Bing-feng WANG Ya-dan DING Wei |
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| Affiliation: | Continuing Education School, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | A new method of modulation and demodulation used in 802.11b wireless local-area-networks (WLAN) physical layer was proposed, with which the data transmission rate could reach to (17.6 Mbit/s.) A (16 bit) complementary code keying (CCK) code expression upon the theory of multiphase complementary code, is presented. And the behavior has been analyzed with the help of computer simulations in additive white Gaussian noise (AWGN) channel. The simulation result showed that the performance of (16 bit) CCK code has more advantages than that of (8 bit) CCK code with the 802.11b draft standard. The fast Walsh transform (FWT) decoding algorithm and the field programmable gate array (FPGA) hardware implementation of the CCK modulation/demodulation system was proposed in the final. |
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| Keywords: | complementary code demodulation wireless local-area-network field programmable gate array hardware implementation |
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