Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Date (from‐to) : 2016/04 -2019/03
Author : Sakakibara Katsumi
We investigate performance of secondary users with energy harvesting techniques in cognitive radio networks. Slotted ALOHA is supposed as a medium access control protocol of secondary users. Under certain assumptions, a secondary user can be modeled by a 2-dimensional Markov chain. Using the 2-dimensional Markov chain, we can formulate a fixed point equation with respect to the ratio of secondary users which actually transmit their data packet. Numerical results show that a bistable behavior can be observed in slotted ALOHA consisting of secondary users with energy harvesting techniques in cognitive radio networks to classical, similarly slotted ALOHA.