Before revision:  In this paper, we consider the optimal PEV charging scheduling problem in a practical scenario where the non-causal information about future PEV arrivals is not known in advance, but its statistical distribution can be estimated.
After revision:  In this paper, we consider the optimal PEV charging scheduling problem in a practical scenario where the non-causal information about future PEV arrivals is not known in advance, but its statistical information can be estimated.