Online activity detection in a multiuser environment using the matrix CUSUM algorithm
Taragay Oskiper, H. Vincent Poor · IEEE Transactions on Information Theory · 2002
Early detection of the entrance of a new user into a multiuser communication channel is considered. The matrix CUSUM (cumulative-sum) test, a multialternative quickest change detection method, is introduced and then applied to this problem. The general behavior of this algorithm is described in analytical results and simulations.