1. derive the least square solution 2. how to estimate variance based on the LS solution 3. a graph of RNN and asked me to explain it 4. an MDP question and asked me to compute the value function 5. compute the channel coherent bandwidth 6. estimation problem
Basic about wireless
List Maxwell's equations. I didn't have them memorized, so that didn't go too well.
They asked me to elaborate on some of my research/work experience and asked some fiddly programming questions.
OFDM, Fading Channel Model, BER, Modulation Schemes
Write a code to swap two numbers without using temp variable
Questions from past experience and wireless power designs.
OFDM Probability distributions for IID gaussian RVs. coherence time and coherence bandwidth
OSI Model, networking fundamentals, network protocols
What is the SAR limit?
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