Wavelet Packet Transform Modulation for Multiple Input Multiple Output Applications
Wavelet Packet Transform Modulation for Multiple Input Multiple Output Applications
复制标题
适用于多输入多输出应用的小波包变换调制
DOI：
10.5120/10482-5221
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Jones
中科院分区：
文献类型：
--
作者：
K. Anoh;R. Abd;J. Noras;S. Jones
引入小波包变换（WPT）调制方案，用于多输入多输出（MIMO）带限系统。该实现涉及使用WPT作为基带处的基本复用技术，而不是正交频分复用（OFDM）系统中常见的传统快速傅立叶变换（FFT）。研究了一种采用Alamplitude分集技术的WPT-MIMO多载波系统。实验结果与Alamanet的原始工作一致。该方案然后实现WPT-MIMO和FFT-MIMO的情况下与扩展的接收机分集，即2 ×Nr MIMO系统，其中Nr是接收机元件的数量。研究发现，分集增益随着接收机分集的增加而减小，WPT-MIMO系统比基于FFT的MIMO-OFDM系统更具优势。
into the wavelet packet transform (WPT) modulation scheme for Multiple Input Multiple Output (MIMO) band-limited systems is presented. The implementation involves using the WPT as the base multiplexing technology at baseband, instead of the traditional Fast Fourier Transform (FFT) common in Orthogonal Frequency Division Multiplexing (OFDM) systems. An investigation for a WPT-MIMO multicarrier system, using the Alamouti diversity technique, is presented. Results are consistent with those in the original Alamouti work. The scheme is then implemented for WPT-MIMO and FFT- MIMO cases with extended receiver diversity, namely 2 ×Nr MIMO systems, where Nr is the number of receiver elements. It is found that the diversity gain decreases with increasing receiver diversity and that WPT-MIMO systems can be more advantageous than FFT-based MIMO-OFDM systems.