In some special environments, it is necessary to use more APs. The channels cannot be completely separated. Therefore, it is possible to consider appropriately reducing the transmit power of APs to…

Question

Options

• ATrue
• BFalse

• A
  81% (22)
• B
  19% (5)

Explanation

Option A is correct because in high-density wireless deployments where the available non-overlapping channels (e.g., only 3 non-overlapping channels on 2.4 GHz: 1, 6, 11) are fewer than the number of APs, channel reuse is unavoidable, meaning nearby APs will share channels and create co-channel interference. Reducing AP transmit power shrinks each AP's coverage cell, which limits how far that interference propagates and allows frequency reuse at shorter distances - this is the core principle behind cell sizing in enterprise Wi-Fi design.

Option B is wrong because dismissing power reduction as a mitigation strategy contradicts established RF engineering practice; lowering power is a standard, effective tool for managing co-channel interference in dense deployments.

Memory tip: Think of it like people talking in a crowded room - if everyone shouts (high power), voices carry across the whole room and create chaos. If everyone speaks quietly (low power), only nearby people hear them, reducing noise for everyone else. Same idea applies to AP transmit power.

No community discussion yet for this question.