Multiple access communication over the power line channel: a CDMA approach

Coding and modulation for a horrible channel

“…Hachem et al [13] suggest a direct sequence SS system for multiple access of up to 32 virtual users, each transmitting at a bit rate of 64 kb/s with binary PSK. With a spreading factor equal to 64 and a chip frequency of 4.096 Mchips/s, an aggregate bit rate of 2.048 Mb/s is achieved.…”

Uma Rede Local Sobre a Rede Elétrica Utilizando CDMA

“…O uso da técnica CDMA, para a transmissão de dados em paralelo através de sub-canais, utilizando códigos de espalhamento distintos é tratado por Hachem et ali [9], com objetivo de aumentar a taxa de transmissão.…”

Comparison of coded orthogonal frequency division multiplexing and multicarrier code division multiple access systems for power line communications

“…Code Division Multiple Access (CDMA) mainly in the form of Direct Sequence CDMA has already been examined thoroughly [17] for low and medium voltages, for different categories of services. Besides, comparisons between CDMA and Orthogonal Frequency Division Multiplexing (OFDM) applied on the medium voltage power grid [18], among OFDM, Single Carrier, and Spread Spectrum for high data rate PLC [4,19], and between OFDM and Direct Sequence Spread Spectrum (DS/SS) for power line data transmission [20] have been carried out as well.…”