Wireless Assistive Sensor Networks for the Deaf

In this paper, a wireless sensor network based assistive system (WASN) is developed to help the deaf or the hearing-impaired people, particularly, help them to be aware of their environments. A brief review on the current assistive devices is also addressed first. The system architecture, components and specifications are presented for two typical application scenarios: smart home and smart school playground. A node platform is developed to implement the system. Finally, the system performance is evaluated by simulations, followed by the analysis of the feasibility and availability