Algorithm 1 Gateway Selection based on RSSI, RTT, and Jitter

Input: Candidate gateways, I

Initialization:

Using RSSI, RTT, and Jitter, discover I;

1 foreach (i ϵ I) do

2 | if RSSIi > Threshold(RSSI) then

3 | | send EAP-Start to i

4 | | measure and update RTT/Jitter for i

5 | end

6 end

7 foreach (i ϵ I) do

8 | compute PVi

9 | if PVi > PVicurr then

10 | handoff to i

11 | zero PVicurr to eliminate ping-pong effect

12 | else

13 | | keep connected to the current gateway icurr

14 end