The Challenges of NEMO in 6LoWPAN Smart Building Area

The network mobility (NEMO) management for a mobile network of IPv6 low-power personal area network (6LoWPAN) in smart buildings has attracted much interest recently, this is partly due to the emergence of the internet of things (IoT). For the specific case of hospital environments, NEMO provides continued connectivity with the Internet for patients attached with 6LoWPAN mobile nodes (MNs) regardless of patients' locations. NEMO comprises a set of mobile network nodes (MNNs) that could move together as a single unit, and each of these mobile networks has a mobile router (MR) that can change its attachment point to the Internet as the network moves together. Even though NEMO has a low signaling cost, but there is a need to understand their challenges for a 6LoWPAN mobile network in smart buildings. If the MR loses its energy, the connectivity with the network will be lost. In this paper, to illustrate the challenges of NEMO in smart buildings like hospital environments, the traffic load at MR will be evaluated against the number of MNNs, number of handovers, and data arrival rate. This has been simulated by OMNet++4.3.1 and Contiki.