A device includes a signaling interface to receive OFDM signaling for an OFDM channel from a plurality of transmit nodes and an OFDM receiver process the OFDM signaling. The device further includes a channel allocation module to determine, for each transmit node, a corresponding SNR for each of a plurality of subchannels of the channel and to allocate, to each transmit node of the plurality of transmit nodes, a corresponding subset of subchannels of the plurality of subchannels. The channel allocation module further is to select, for each subset of subchannels, one or more subchannels for use as pilots by the corresponding transmit node based on the SNRs of the subchannels in the subset. The device further includes an OFDM transmitter to transmit configuration information to the plurality of transmit nodes, the configuration information representing the allocation of the subchannels and the selection of subchannels for use as pilots.