Describe how single channel architectures provide smoother handoffs compared to MCAs.
What will be an ideal response?
A mobile station must receive an uninterrupted flow of frames when moving from the coverage area of one AP to another AP, especially when using VoIP. With MCA, the station responsible for this procedure monitors the signal strength from multiple APs or data frame error rates. With SCA, the handoff is instead accomplished through coordination between the lightweight APs and the WLC. The stations cannot distinguish which AP is providing the coverage; instead, the network decides which AP should transmit and receive data for a particular station. This means that the stations are not involved in any handoff decision from one AP to another. As stations move, the network directs traffic to them via the nearest AP with available capacity.
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