As before, if we find more than one channel with the same weight, it’s up to you to choose the proper channel (by a hierarchy, the first that we found, the last… ). If we have only one channel that has this constraints, the choice is easy.
#BEST 2.4 GHZ CHANNEL FREE#
One or more channels are free and they have adjacent channels free (up to two). If we find more than one channel with the same weight, it’s up to you to choose the proper channel (by a hierarchy, the first tha we found, the last… ). In this case we will choose the channel that has the higher weight associated. Once we have generated the statistics, we can choose the best channel by evaluating the scenario: If from the wifi scan it’s possible to check also the noise of each channel, the weight can be penalized when we reach a specific treshold. To evalue the weight of a channel we divide the value of the RSSIofTheBestAp for the #apAssociated. The weight function is the most important part of the algorithm. If instead the left adjacent channel is free, we set L to 0. As said before, it’s possibile that some channel they don’t have adjacent channels, so the value of L,R,L2 or R2 are set to -1. So if a channel is free, it will have a weight and an RSSI of 100. Note : Every channel must have an entry on this table, even if it’s not associated with any other Ap. #Channel #apAssociated RSSIofTheBestAp Weight L R L2 R2 Every row is associated to one channel and it will contain this information: The same is for the channels right after/before, they don’t have up to two adjacent channel from left/right. Note : Obviously the first and the last channel of the WiFi spectrum don’t have an adjacent channel on the left and on the right. We evaluate a weight to associate to each channel and we see (for each channel) if the adjacent channel (left and right up to 2) are free or not. Once the Wifi Scan is performed, we process the data generating some statistics. From the WiFi Scan we took the following information for each channel: WiFi Analysisįirst of all we do the WiFi scan with a proper command (that can be iwinfo or iwlist). When we evaluate it we can surely choose the best channel. Step 3: Scenario assessment and best channel in this phase we can have different scenario. Step 2: Processing data in this phase we process the data (for each channel) related to the weight and we verify the status of the adjacent channels. Step 1: WiFi Analysis in this phase we perform the WiFi Analysis to verify if there are other networks that can interfere with our.
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