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| Ad hoc网络中的希尔伯特IT多包接收算法 | |
| 引用本文： | 刘晓雪,;季薇,;郑宝玉. Ad hoc网络中的希尔伯特IT多包接收算法[J]. 南京邮电学院学报(自然科学版), 2009, 0(5): 1-6 |
| 作者姓名： | 刘晓雪, 季薇, 郑宝玉 |
| 作者单位： | [1]南京邮电大学信号处理与传输研究院,江苏南京210003; [2]南京邮电大学通信与信息工程学院,江苏南京210003 |
| 基金项目： | 江苏省自然科学基金重大项目（BK2007729）、江苏省高校自然科学重大基础研究项目（06KJAS1001）、江苏省高校自然科学研究项目（09KJB510012）资助项目 |
| 摘 要： | IT（Implicit Training）算法能够实现Ad hoc网络中二维信号的多包接收。利用希尔伯特变换的性质,同时结合IT序列的循环平稳特性,提出了一种改进的用于异步Ad hoc网络中二维解析信号多包接收的IT算法,对算法的性能以及影响性能的因素进行了仿真分析。仿真结果表明,与原算法相比,希尔伯特IT算法不仅提高了对用户数据包的分辨能力,而且性能更加稳定。 |
| 关 键 词： | Ad hoc网络 多包接收 IT算法 希尔伯特变换 |
Hilbert IT Multiple Packet Reception Algorithm for Ad hoc Networks |
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| Affiliation: | LIU Xiao-xue,JI Wei, ZHENG Bao-yu(1. Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China) |
| Abstract: | Implicit training （IT） algorithm can achieve multiple packet reception of complex data for Ad hoc networks. In this paper, an improved algorithm using the nature of Hilbert transform as well as the cyclostationarity of implicit training sequences is proposed, which can achieve the separation of 2-D analytic signals. We studied the performance of this new algorithm and factors affecting it through simulation. Compared with the original algorithm, the proposed algorithm can effectively improve the capability of multiple packet separation and work more steadily. |
| Keywords: | Ad hoc networks multiple packet reception IT algorithm Hilbert transform |
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