Learn More
A Smart Grid intelligently monitors and controls energy flows in an electric grid. Having up-to-date distributed readings of grid conditions helps utilities efficiently scale generation up or down to meet demand. Narrowband powerline communication (PLC) systems can provide these up-to-date readings from subscribers to the local utility over existing power(More)
Transmitter precoding for multiple-input-multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is an effective way of leveraging the diversity gains afforded by a multiple-transmit multiple-receive antenna system in a frequency selective environment. In the limited feedback scenario, optimal precoder representation for narrowband MIMO(More)
—Non-Gaussian noise/interference severely limits communication performance of narrowband powerline communication (PLC) systems. Such noise/interference is dominated by periodic impulsive noise whose statistics varies with the AC cycle. The periodic impulsive noise statistics deviates significantly from that of additive white Gaussian noise, thereby causing(More)
Current generation narrowband power-line communication systems are OFDM based. They are especially susceptible to narrowband interference (NBI) which is generated by switching power supplies and legacy communication systems. In this paper we propose a novel method for mitigating the effect of NBI. The method exploits a well-known characteristic of NBI(More)
This paper presents in details the implementation and field test results of a software defined power line communication (PLC) modem using digital signal processor (DSP). The flexible software architecture using a single hardware supports multiple standard solutions, such as PRIME, G3, IEEE P1901.2. The modem software can also be configured to use different(More)
A common impairment in both wireless and wireline orthogonal frequency division multiplexing (OFDM) schemes is narrowband interference (NBI). NBI has the detrimental effect of making the tones on which the NBI falls and in some cases neighboring tones unusable, thus reducing the effective signal-to-noise ratio (SNR) of the system. Some examples of(More)
Narrowband power line communications (NB-PLC) operating in the 3-500 kHz frequency band is proposed as a solution to support the emerging Smart Grid applications that aim to optimize the efficiency and reliability of the power grids. PLC is attractive for Smart Grid communications as it can be deployed over the existing power grids without any additional(More)