A Comprehensive Review of Various Issues And Challenges In Wireless Sensor Networks

Over the past decades Wireless Sensor Networks WSN have shown a great change due to its advancement in technology and adaptability nature. It is that breed of organization that can be found in number of small devices namely sensors nodes. These are usually arranged in remote and distant areas. Every sensor node consists of radio interface to communicate with each other, also these nodes are limited because of the batteries embedded in them. When various sensors mutually monitor large sensible environments, they present a wireless sensor network (WSN). They are adaptable to various environments so they maintain vast range of functions. In this work various issues, challenges, and characteristics related to wireless sensor network are discussed. Since wireless devices should be bandwidth limited and small, a few main challenges in wireless networks are Signal fading, mobility, data rate, power and energy, security and Quality of service (QoS). Also, it has been observed that Wireless sensor networks have motivated various operations in the plots like health, environment, human activity monitoring etc.