![]() A better definition is Co-Channel Contention. We just covered its not really interference. In other words, access points on the same channel causing interference with each other. In the industry you hear folks, publications and vendors reference CCI (Co-Channel Interference). You, like everyone else, needs to wait their turn to ask their question.ĬCC / CCI - Lets also go down the CCC (Co-Channel Contention) and CCI (Co-Channel Interference) road since we're on topic. You have a question you raise your hand along with 10 other folks. You're in a conference the speaker is done with his session and opens the floor up to Q&A. Layer 1 with the use of preambles and PHY headers and layer 2 through the use of NAV.ĬSMA-CA is the rule book or referee used by WiFi devices to gain access to the medium. This contention happens on layer 1 and layer 2. Your ears, receiving radios, are having a hard time understand the speaker distinguishing what he is saying.Ĭhannel Contention - Can be defined as 802.11 mechanisms to gain access to the medium to trigger frames. Say for a moment you're listing to a speaker at a conference and directly behind you a loud conversation or argument is going on. The obvious suspects microwave ovens, cordless phones, cameras, BT, and the list goes on. In other words something that is on frequency, causing duty and resulting in 802.11 radios to go busy or interference close to a radio causing wave forms to be misinterpreted resulting in bit errors. RF Interference - Can be defined as non 802.11 interference. Definition of interference: the action of interfering or the process of being interfered with In 802.11 networking, interference can really be defined in two very distinctive categories.īy definition both are indeed interference. I realized something, interference is necessarily the right definition. Over the years, as I became educated in 802.11 networking and understanding channel contention through the operation of CSMA-CA. But there were present all the ingredients of stasis, civil strife.About the Author George Stafanick Blog Contributor Full bioĪs long as I can remember interference of any kind mentioned on a WiFi network was slapped with the label "interference". ![]()
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