Various architecture for detection of information using SAC-OCDMA for FTTH system

SAC-OCDMA is a technique in which several user can access the same network or medium simultaneously without any collision. This is possible because each user has been assigned a unique code word with equal weight to access the medium, hence the possibility of collision of data between the users is highly less probable. The major advantage of OCDMA system is its effective utilization of bandwidth as well as the multi user communication capability. In this paper a study of different detection technique is presented and also a hybrid structure for SAC-OCDMA is proposed for the better BER performance by using VC code.