Ubiquitous and Emerging Concepts of Sensors

Ubiquitous computing and sensor networks persuading the technological bars so firmly that its success is elevating in exponential manner. Along with all the prons that this technology is providing to our society in day to day life, industries, medical system, military services, etc there are still some barriers in achieving the performance to the fullest extent due to some resistances like battery life, maintenance, security and others which are listed and described in this paper. This paper will be carried out starting with the basic introduction of Ubiquitous computing and then focusing mainly on wireless sensor network technology, then its features along with the software as well as hardware constraints along with the countermeasures. The main challenge being the security assurance of the network that is briefly described in this section with layer wise attacks and actions to recover. In section 3, applications of wireless sensor network technology are mentioned that been categorized depending on the types of sensor networks. The last section contains the trending standards and technologies of wireless sensor networks which includes IEEE 802.15.4, ZigBee, Bluetooth, etc along with their classifications of characteristics that are bulleted on the table of comparison. At last, concluding the subject with a summary on all technologies, applications and leaving future scope of betterment in the present day's technology and deployment of the newer ones.