Multinode Data Offloading for Urban Wireless Sensor Networks Based on Fog Computing: A Multiarmed Bandit Approach

Table 1

Symbols and their meanings.

Symbols	Meanings
	Total number of time slots
	An arbitrary time slot
	The pairing of task node and the helper node
	A match with pairs of task and helper nodes
	An optimal match with pairs of task and helper nodes
	The instantaneous reward for offloading data
	Mean value of instantaneous rewards after time slots
	Number of times helper node has been decided by task node
	The mean value of rewards observed to the current time slot
	Task node observes the UCB index of helper node
	A predetermined common decreasing function
	Fallback time obtained according to after a conflict
	is any maximal element in the set
	The number of choices for nonoptimal task node and helper node pairings