Performance study of node wakeup rate on the privacy enabled addressing scheme in duty-cycled 6LoWPAN

Abstract

Node address privacy in 6LoWPAN can be ensured using temporary addresses in the communication messages. If private temporary addresses are used, then it is difficult to track the nodes by looking at its addresses. Address configuration latency of privacy enabled IPv6 addressing scheme for 6LoWPAN may be affected due to radio duty cycling used to save energy. ContikiMAC is widely used duty cycling protocol in Contiki operating system's MAC layer along with the CSMA channel access mechanism. But the address configuration delay is increased with the use of duty cycling at the MAC layer. The ContikiMAC allows node to use different wake up frequency known as Channel check rate when it is not transmitting. In this paper, an experimental study is presented to evaluate the effect of Channel Check Rate on the address configuration latency and the communication cost. It is observed that the ContikiMAC duty cycling protocol is used to save energy. However, if the node wakeup frequency decreases, the address configuration latency and communication cost increases.