Submitted on: 21 February 1998.
Revised on: 15 April 1998.
Accepted on: 02 May 1998.
___________________INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
Submitted on: 20 February 2013.
Revised on: 13 March 2013.
Accepted on: 05 May 2013.
___________________INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
Submitted on: 13 February 2023.
Revised on: 25 March 2023.
Accepted on: 21 May 2023.
___________________INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
Submitted on: 12 July 2004.
Revised on: 20 August 2004.
Accepted on: 02 October 2004.
___________________INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
http://reply.papertrans.cn/2/132/13177/13177-15.png
http://reply.papertrans.cn/2/132/13177/13177-16.png
Submitted on: 12 March 2003.
Revised on: 21 April 2003.
Accepted on: 15 June 2003.
___________________INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
http://reply.papertrans.cn/2/132/13177/13177-18.png
http://reply.papertrans.cn/2/132/13177/13177-19.png
http://reply.papertrans.cn/2/132/13177/13177-20.png