Cell Overlap & Roaming
Wireless
Overview
Roaming is usually a client decision influenced by RSSI, retries, policy and capabilities. Overlap supports transition, but excessive co-channel overlap wastes airtime. Matching security and network design are needed to preserve sessions; strongest signal is not the only quality metric.
Protocol stages
- 1Serving AP
- 2Candidate AP
- 3Client decision
- 4Reassociation
- 5Session continuity
Interactive exercise
Knowledge check
The client still sees a weak AP while a better AP is available. Who normally initiates a Wi-Fi roam?
Educational model — not real hardware, traffic or official certification.