Hi
I have 8 years experience with MATLAB, an MS degree in signal processing, telecom and pattern recognition and pursuing a PhD in machine learning. I have vast experience in MATLAB simulation, optimization, machine learning, signal/image processing. I am confident I can simulate your WSN as well. If you share the paper/algorithm with me, I can give you a rough outline how to implement it. Also, I will work with you as long as you are not satisfied with your results.
Looking forward :)