category e2 Full written paper- Non-refereed Proceedings pt.29/9/09; 21/1/10 HD; no link to full text available pa.7/9/11. PERMISSION: 'Permission granted. Following conditions apply: 1. Obtain author's consent. 2. Indication of source (Author, title, journal title, vol/issue/page no./pub date) 3. Copyright statement "Copyright (c) 2006 IEICE". 4. Publisher version. 5. Indciate authoirisation no: IISB0058. 21.9.12-MMM 21.9.12-MMM