A Review on Hybrid WSN-NGPON2 Network for Smart World

The emerging wireless sensor network (WSN) is a wireless network of low-power, high-resolution nodes for sensing the environment. WSN, a future technology, has been deployed for numerous smart world applications such as smart agriculture, homes, cities, transportation, hospitals etc. But, the presence of limited bandwidth, small coverage and the limited energy sensor nodes retards the lifetime of the WSNs. Thus to remove all these shortcomings of sensor network at a high data rate over long reach distance, the passive optical network (PON) plays an important role for WSNs. Further, an attractive and energy-efficient next generation passive optical network stage 2 (NG-PON2) provides a higher data rate and better quality of services at a low cost. Furthermore, the hybrid wireless sensor network- next generation passive optical network stage 2 (WSN-NGPON2) is a future proof energy efficient optical network for a smart world. In this chapter, the hybrid WSN-NGPON2 network is studied and compared with other PON architectures like gigabit passive optical network (GPON), ethernet passive optical network (EPON), next generation passive optical network stage 1 (NG-PON1) etc. In addition of describing the key challenges of hybrid WSN-NGPON2 network, this chapter also presents the various applications in different smart fields. It is concluded that although hybrid WSN-NGPON2 network has challenges, but also it provides the lots of numerous advance applications for smart world.