Accurate Delay Analysis in Prioritised Wireless Sensor Networks for Generalized Packet Arrival

作者：Drieberg Micheal^*; Asirvadam Vijanth Sagayan; Zheng Fu Chun

来源：IEEE Wireless Communications Letters, 2014, 3(2): 205-208.

DOI：10.1109/WCL.2014.012414.130609

• Delay
• priority
• wireless sensor network

This letter presents an accurate delay analysis in prioritised wireless sensor networks (WSN). The analysis is an enhancement of the existing analysis proposed by Choobkar and Dilmaghani, which is only applicable to the case where the lower priority nodes always have packets to send in the empty slots of the higher priority node. The proposed analysis is applicable for any pattern of packet arrival, which includes the general case where the lower priority nodes may or may not have packets to send in the empty slots of the higher priority nodes. Evaluation of both analyses showed that the proposed delay analysis has better accuracy over the full range of loads and provides an excellent match to simulation results.

• 出版日期2014-4