Over multipath channels, complete complementary code division multiple access and convolutional spreading provide inter-channel interference free transmission with an enhanced spectral efficiency. However, the convolutional spreading (CS) operation of systems is computationally complex involves...

This paper has presented the performance of an optical code division multiple access (OCDMA) system for indoor, short and outdoor applications and the transmission efficiency to be evaluated in order to determine the impact of multi access interference for a given number of users in dense wavelength division multiplexing. Optical code division multiple access is an alternative multiplexing sche...

a typical radio frequency identification system (rfid) includes one reader and a number of tags. the reader transmit to commands to the tags with interrogation radio signals, and tags receive the command and then respond with their identification. readers with interrogation signals can read tags’ responses. in rfid systems, when multiple tags respond to one reader simultaneously, tag collision ...

Optical Code Division Multiple Access (OCDMA) has bright future in communication because of its faster speed, efficiency, security and unlimited bandwidth. To reduce Multiple Access Interface (MAI) and Phase Induced Intensity Noise (PIIN) noises there are many codes in Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) with codes best property i.e., minimum cross-correl...