Sensor networks are widely used in the large geographical area and this has to be finding the location of every transmission. The frequencies are considered the major persuasion in sensor networks. Frequency division multiple access (FDMA), time division multiple access (TDMA) and Code division multiple access techniques (CDMA) are used to share the available bandwidth, but these approaches are...

A silicon photonic waveguide system with mode-division and wavelength-division-multiplexing capabilities is demonstrated. Error-free (BER < 10−12) data transmission of 2 modal channels and 3wavelengths operating with aggregate bandwidth of 60-Gb/s is realized. This work motivates future bandwidth scalability of silicon photonic interconnects.

Recent advances in wireless communications have made use of MC-CDMA and OFDM techniques to allow for high data rate transmission. Rapid time variations of the wireless communication channel have a effect on the performance of multicarrier modulation. In this paper, we emphasis the Doppler spread and Computes its effect on the bit error rate (BER) for multicarrier code division multiple access (...