JOURNAL OF COMMUNICATIONS AND NETWORKS, vol. 6, no. 2, page. 93 - 105, 2004-06
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, vol. 20, no. 5, page. 959 - 973, 2002-06
IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 49, no. 8, page. 1768 - 1785, 2001-08