Optical Cdma Decoder Optical or Electrical Data Source # 1 Optical Cdma Encoder Data Source # M Optical Cdma Encoder Optical Star Coupler Optical Cdma Decoder Optical or Electrical Data Recovery # 1
ثبت نشده
چکیده
منابع مشابه
Polymeric Optical Code-Division Multiple-Access (CDMA) Encoder and Decoder Modules
We propose a low cost polymeric optical waveguides-based optical CDMA encoder and decoder modules. The structures of the optical CDMA encoder and decoder modules are presented. The performance of the optical CDMA encoder and decoder modules is simulated using 10-chip binary phase-shift keying (BPSK) coding schemes. The optical CDMA encoder and decoder modules can effectively transmit and recove...
متن کاملTwo Dimensional Tunable Optical-CDMA System
In this work an experimental demonstration is proposed to implement the synchronous optical code division multiple access system using two dimensional wavelength hopping and time spreading optical prime code is presented. An optical CDMA system is configured on latest version of optisystem by optiwave for the 20 users (Prime Number = 5) connected in a network operating at a bit rate 10 Gbps eac...
متن کاملSpectral Encoding and Decoding of Monolithic InP OCDMA Encoder
We report the optical-coding operation of monolithic, ultra-compact optical-CDMA encoder and decoder pair, consisting of InP based integrated AWGs and phase modulators. The encoder and decoder successfully demonstrate eight-bit Walsh code based encoding and decoding. Introduction The Optical Code Division Multiple Access (O-CDMA) technology is a promising approach for future alloptical access n...
متن کاملEmerging Optical CDMA Techniques and Applications
In this paper we present an in-depth review on the trends and the directions taken by the researchers worldwide in Optical Code Division Multiple Access (OCDMA) systems. We highlight those trends and features that are believed to be essential to the successful introduction of various OCDMA techniques in communication systems and data networks in near future. In particular we begin by giving a c...
متن کاملDesign and Implementation of Improved Superimposed Cyclic Optical Orthogonal Codes (scooc) Based Optical Encoder/decoder Structure for 1gbps Optical Cdma System
In this paper, an improved form of two dimensional optical orthogonal codes is introduced for optical CDMA system by using just six lasers. This new technique not only reduces the length of the code but also improves the bit error rate (BER) performance of the system. The uniqueness of this coding architecture is that the two adjacent codes are not only different by their time slots but have di...
متن کامل