Delay sensitive analysis on wireless sensors network A Survey

In Wireless Sensor Networks, many new protocols have been designed to reduce overall end-to-end delay when transmitting the data gathered by the sensor node to the storage sink. Most of the importance have been given to the delay sensitive applications and reduce the delay using routing protocols. This paper makes a survey on recent routing protocols which reduce the delay in delay sensitive applications. Several delay types are identified and moreover founded that solutions are given mainly for queuing delay and propagation delay. Finally, we comment on the research issues are open in several delay types