Nowadays, with the development of industrialization and urbanization, air pollution has been a serious problem all of the word. Air pollutant is harmful to human and ecological environment, for example, SO2 and NO 2 produced by industry are vital to living organisms, greenhouse air such as CO2 causes global warming. As a result, environmental monitoring is of great importance for human beings. This paper proposes a scheme to implement environmental monitoring. In particular, wireless sensor network collect data from surrounding environment and mobile communication system receive and process these data. To avoid network congestion, a cognitive protocol is proposed for wireless sensors accessing to mobile network. Besides that, a dynamic working scheme is also proposed for sensors so that data collection rate can be adapted to the situation of network.
- Cognitive radio
- Mobile network
- Wireless sensor network
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering