Channel access delay analysis of node for 6LoWPAN
6LoWPAN网络节点信道接入延时性能研究

To optimize the performance of MAC in 6LoWPAN, this paper proposed a mechanism based on saturated traffic for slotted CSMA/CA algorithm, and it established a Markov chain model for it. Then, this paper gave ont an expression using the new model for calculating the main parameters. Furthermore, it carried out the numerical analysis based on the model of the node access delay and channel access probability, and analyzed the impact of protocol parameters to the node average access delays. Finally, by the theoretical analysis showes that the model describes the slotted CSMA/CA mechanism well, and reasonable settings for CSMA/CA parameters can improve the performance of node average access delay.