IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, vol. E96D, no. 3, page. 723 - 726, 2013-03
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, vol. E96D, no. 1, page. 134 - 137, 2013-01
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, vol. 11, no. 5, page. 1638 - 1642, 2012-05
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, vol. E95D, no. 4, page. 1155 - 1158, 2012-04
LECTURE NOTES IN COMPUTER SCIENCE, vol. 3043, page. 471 - 480, 2004-01