Abstract
A new design scheme of orthogonal pulses is proposed for waveform division multiple access ultra-wideband (WDMA-UWB) systems. In order to achieve WDMA and to improve user capacity, the proposed method, termed as interference alignment based orthogonal pulse design (IA-OPD), employs combined orthogonal wavelet functions in the pulse design. The combination coefficients are optimized by using interference alignment. Due to the reciprocity between transmitted and local template signals, the iterative process based on maximum signal to interference plus noise ratio (Max-SINR) criterion can be used to solve the optimization problem in interference alignment. Numerical results demonstrate that the optimized orthogonal pulses provide excellent performances in terms of multiple access interference suppression, user capacity and near-far resistance without using any multiuser detection techniques. Thus, the IA-OPD scheme can be used to efficiently design a large number of orthogonal pulses for multiuser WDMA-UWB systems with low computational complexity and simple transceiver structure.
| Original language | English |
|---|---|
| Article number | 8607081 |
| Pages (from-to) | 2386-2395 |
| Number of pages | 10 |
| Journal | IEEE Systems Journal |
| Volume | 13 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 2019 |
| Externally published | Yes |
Keywords
- Combined waveforms
- interference alignment
- maximum signal to interference plus noise ratio (Max-SINR)
- orthogonal pulse design
- waveform division multiple access ultra-wideband (WDMA-UWB)
Fingerprint
Dive into the research topics of 'IA-OPD: An Optimized Orthogonal Pulse Design Scheme for Waveform Division Multiple Access UWB Systems'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver