Adaptive Transmission Techniques For Multiple-Input Multiple-Output (Mimo) Power Line Communications (Plc) Channel

Authors

  • Abdulkadhim A. Salman

Abstract

The need for solutions that meet the demand for network connectivity has driven the development of new telecommunications technologies. Amid this context, Communication via the Electric Power Network appears as a promising option. One of the reasons that make it very attractive is due to the fact that it’s infrastructure, corresponding to the access network. Electricity networks are considered a hostile means of communication, whose channel gain is strongly dependent on the frequency, distance, network topology and loads connected to it. In addition, the transmitted signal is affected by the superposition of several noise sources, which can present high power levels and thus corrupt whole data bursts. Currently, the use of MIMO systems (multiple-input multiple-output) has been studied in the search for a better performance of Communication via Power Line Communications - PLC. MIMO opens a new dimension, in communication systems that use diversity, "space". These systems can be explored in various ways to improve performance. The use of MIMO in wireless standards motivated by the increase in the transmission speed, obtained through spatial multiplexing (multiple antennas). In the present paper, a new transmission technique is proposed for narrow band MIMO-PLC systems, which consists of the use of pre-processors in the transmitting modem, adapted by sending information through a transmission channel feedback. The results of the simulations show that the proposed technique is more efficient than the existed system in the study area. The proposed technique explores the use of processors in the transmitting modem. These pre- processors weigh the power of the signal to be transmitted, in order to maximize the instantaneous signal-to-noise ratio (SNR).

Published

2020-12-01

Issue

Section

Articles