CASH: A Channel Assigner Algorithm for Heterogeneous Devices in Smart Homes

In recent years, the growth of the Internet of Things (IoT) paradigm popularized the application of heterogeneous wireless devices in the residential environments, emerging the concept of Smart Homes (SHs). SHs are houses equipped with different smart devices that automate most of daily activities. These smart devices suffer a serious coexistence problem, since they all use the 2.4 GHz ISM band for communication. Within this context, this paper presents the CASH algorithm to minimize the interference in SH environments through suitable wireless channels assignment, mitigating the coexistence problem. The results suggest that the proposed algorithm reduces the total interference, as well as maximizes the packet delivery when compared to existing approaches.