Fig. 19
From: Reinforcement learning-based dynamic band and channel selection in cognitive radio ad-hoc networks
a Mean value and b boxplot of data transmission rate for Q-learning and random channel selection. Shows the mean and boxplot of the data transmission rate for Q-learning and random channel selection for each DDR. In cases of the random channel selection, the average data transmission rate of all DDR cases is the same as the average value of the data rates for all channels in Table 1 belonging to band groups 1 and 2. The boxplots of all DDR cases for the random channel selection have a similar distribution. For the DDR of 10 kbps and 50 kbps, the mean of the Q-learning selection is lower than the random selection and the Q-learning has more narrow distribution. For the DDR of 1.5 and 3.5 Mbps, the mean of the Q-learning selection is higher than the random selection and the Q-learning has more narrow distribution