Random delay is one type of contermeasures in SCA. The other common one is random masking

1. An Effcient Method for Random Delay Generation in Embedded Software [PDF]
   The original random delay paper on CHES 2009
2. Analysis and Improvement of the Random Delay Countermeasure of CHES 2009 [PDF]
   A followup paper published on CHES2010
3. Cryptanalysis of the CHES 2009/2010 Random Delay Countermeasure [PDF]
   An eprint paper about the previous CHES papers by FX
4. RAM: Rapid Alignment Method [PDF]
   A paper about the new alignment method, also several wavelet methods
5. Breaking Cryptographic Implementations Using Deep Learning Techniques [PDF] The very first deep learning paper coping with template attack, published on SPACE2016, keynote talk by Emmanuel Prouff
6. Convolutional Neural Networks with Data Augmentation Against Jitter-Based Countermeasures Profiling Attacks Without Pre-processing [PDF] A deep learning paper coping with random delays, published on CHES2017
7. SCATTER : A New Dimension in Side-Channel [PDF]
   a paper about how to do the alignment, 2017, which is related with random delay
8. Convolutional Neural Networks with Data Augmentation Against Jitter-Based Countermeasures Profiling Attacks Without Pre-processing [PDF] A deep learning paper using CNN on random delay, published on CHES2017

1. The engineer's ultimate guide to wavelet analysis: The Wavelet Tutorial by Robi Polikar [Link]
2. Novel Applications of Wavelet Transforms based Side-Channel Analysis, 2011 [PDF]
3. Wavelet Transform Based Pre-processing for Side Channel Analysis, 2012 [PDF]
4. CPA performance comparison based on Wavelet Transform, 2012 [PDF]
   ICCST 2012 paper, direct wavelet attack using CPA.
5. Improving the DPA attack using wavelet transform, 2014 [PDF]
6. On the Negative Effects of Trend Noise and Its Applications in Side-Channel Cryptanalysis [PDF]
   a recent 2014 paper by yongbin zhou
7. Wavelet-Based Noise Reduction in Power Analysis Attack [PDF]
   a recent 2014 paper by an wang
8. Wavelet de-noising method in the side-channel attack [PDF]
   a recent 2015 paper by shaoqing li
9. Wavelet Support Vector Machine Algorithm in Power Analysis Attacks [PDF]
   Wavelet in power analysis, 2017
10. SCATTER : A New Dimension in Side-Channel [PDF]
    a paper about how to do the alignment, mentioning some wavelet, 2017