Flexible Wi-Fi Communication among Mobile Robots in Indoor Industrial Environments

Table 1

Requirements and KPIs.

Requirements	Description	KPI
RQ1	Function in the absence of fixed wireless infrastructure (network of APs)
RQ2	Exploit the presence of available fixed infrastructure
RQ3	Deal with occasional/sudden coverage holes in wireless infrastructure	Relay node role
RQ4	Reliably deliver unicast traffic	98%
RQ5	Timely deliver frequent broadcast traffic	<20 ms
RQ6	Deal with mobility	0–2 m/s
RQ7	Limit continuous outage times	<1 sec
RQ8	Function in unlicensed spectrum	2.4 or 5 GHz
RQ9	Adapt to future needs	Modular architecture