Notice of Violation of IEEE Publication PrinciplesInterference Detection in Optical CDMA Networks

Notice of Violation of IEEE Publication Principles

"Interference Detection in Optical CDMA Networks,"
by A. Govardhan, S. Charles, S.F. Sultana,
in the Proceedings of the International Conference on Advanced Computing and Communications, 2006. (ADCOM 2006), pp.393-396, Dec. 2006

After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE\´s Publication Principles.

This paper contains significant portions of original text from the paper cited below. The original text was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission.

Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article:

"Algorithms for Interference Sensing in Optical CDMA Networks,"
by P. Kamath, J.D. Touch, J.A. Bannister,
in the Proceedings of the IEEE International Conference on Communications, 2004, vol.3, pp. 1720-1724, June 2004

Optical CDMA local area networks allow shared access to a broadcast medium. Every node is assigned an optical orthogonal codeword (OOC) to transmit or receive on. Optical CDMA systems have low throughput under moderate to heavy offered load due to interference between codewords. Interference Sensing is a media access architecture where nodes on the network sense the amount of interference on the line before transmission. Nodes defer transmissions if there is interference on the line. This paper discusses and analyzes three algorithms for interference sensing. Through simulation it is shown that these algorithms reduce or eliminate throughput degradation at high loads. The study shows that simple algorithms such as selfish or threshold based algorithms are sufficient to eliminate throughput degradation.