Quality of Service in WSN-A Review

Abstract

The capability of sensor nodes to observe and react to physical phenomenon has made wireless sensor networks a new technological vision. They are small devices having distributed sensing capabilities with wireless interfaces and communicate using Radio Communication (RF) techniques. As these networks are used for applications that emphasize on timeliness or reliability or both QoS becomes an important parameter. But due to resource constrained and power hungry nature of these devices very few work is done in this area and there is currently no standardization, on a framework and/or general guidelines in the networking community on how QoS can be achieved in WSNs. This paper presents the Quality of service parameters, issues and about the work done in this area.