A system and related methods for beamforming in a multi-point communication environment is presented. The container assembly includes a container device that includes a sidewall support and a bottom support collectively defining an interior cavity. Accordingly, even when the data frame to be relayed to the network is concentrated in the data relay device, the data frame from nodes of the network can be transmitted using the time zone. The error detector is connected to output terminals of the light source strings and senses voltages between the input terminals and the output terminals of the light source strings to detect an error in the light sources using a first voltage and a second voltage.