1. A method of wireless communication at a user equipment (UE), comprising:receiving a configuration for resources of a control channel associated with a node, wherein the resources are included in a narrowband region of a wideband system;
excluding, based at least in part on a message received from a base station, resources of the narrowband region that comprise a control region for broadband communications from the control channel;
identifying a plurality of subframes during which to monitor a demodulation reference signal (DM-RS) for decoding the resources of the control channel, wherein the plurality of subframes have a same precoding applied to the DM-RS across the plurality of subframes; and
decoding the control channel based at least in part on the DM-RS.