The paper highlights the strengths and performance issues of each routing technique and concludes the paper by bringing to your notice the possible future research areas.
The survey conducted recently reckons that by the year 2010 more than 10 billion wireless sensors have been deployed for various applications, as diverse as environmental monitoring, agricultural monitoring, machine health monitoring, surveillance, and medical monitoring. These networks connect the physical world with the digital world and provide us a better understanding of controlling our surroundings. Advances in wireless sensor network technology has lead to the availability of small and less cost sensor nodes which have the capability of sensing different types of physical and earthly conditions, data processing and wireless communications. Various sensing capabilities results in profusion of application area. Many routing, power management, and data dissemination protocols have been specifically designed for WSNs. We would like to highlight the strengths and performance issues of each routing technique and conclude the paper by bringing to your notice the possible future research areas.