IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 59, no. 7, page. 1791 - 1795, 2011-07
IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 59, no. 1, page. 95 - 105, 2011-01
IEEE TRANSACTIONS ON COMMUNICATIONS, vol. 58, no. 4, page. 1121 - 1128, 2010-04