Question

Difficulty: MediumWireless Network Deployment and Standards

A network engineer is deploying wireless access points equipped with directional patch antennas along high-ceiling inventory aisles in a logistics warehouse. The objective is to provide clear coverage along narrow aisle corridors while minimizing co-channel interference and signal leakage into adjacent parallel aisles. Which of the following deployment parameters and configuration settings should the engineer implement? (Select TWO.)

  1. Align the primary radiation beam of directional antennas parallel to the aisle pathways.Answer
  2. Reduce access point transmit power and raise the minimum basic data rate to shrink cell boundaries.Answer
  3. C
    Deploy high-gain omnidirectional antennas on access points above every aisle intersection.
  4. D
    Configure 40 MHz40\text{ MHz} channel bonding across all access points operating on the 2.4 GHz2.4\text{ GHz} spectrum.
  5. E
    Assign the same static 2.4 GHz2.4\text{ GHz} channel to access points located in neighboring parallel aisles.

Answer

The engineer should align directional antenna coverage parallel to the aisle pathways and reduce access point transmit power while increasing minimum basic data rates to limit cell boundary overlap.
Aligning directional antenna radiation beams along aisle pathways directs wireless signals specifically along user movement corridors while minimizing signal leakage into adjacent aisles. Concurrently, lowering access point transmit power and increasing the minimum basic rate restricts cell size boundaries, reducing co-channel interference across neighboring access points.

Step-by-Step Solution

1
Select and position antenna patterns appropriate for long, narrow warehouse corridors.
Directional patch antennas aligned parallel to the aisles focus RF energy along the path of client movement, preventing signal leakage into adjacent aisles.
Omnidirectional antennas emit RF energy in 360 degrees, causing unnecessary signal bleed across storage racks.
2
Tune RF coverage cell boundaries to prevent co-channel interference.
Decreasing access point transmit power and elevating the minimum basic rate shrinks the cell footprint and encourages prompt client roaming.
Uncontrolled cell sizes and support for slow legacy rates cause clients to remain connected to distant access points, consuming unnecessary airtime and overlapping with neighboring cells.

Key Concept

Wireless Antenna Selection and Cell Boundary Tuning
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