Hybrid wireless sensor network for building energy management systems based on the 2.4 GHz and 400 MHz bands. - Ayeon Kim; Jaejun Han; Taeyoon Yu; Dong Sik Kim (Inf. Syst., 2015)

Development of a low-cost indoor environment monitoring system based on a hybrid wireless sensor network. - Jaejun Han; Jeongmin Lee; Eunae Lee; Dong Sik Kim (ICCE, 2016)