Alvarion BreezeNET PRO.11 Betriebsanweisung PDF herunterladen (Seite 112)

Planning and Installing Wireless LANS

User’s Guide

5-8

BreezeNET PRO.11 Series

5.1.3 Multicell Configuration

Areas congested by many users and a heavy traffic load may require a multicell

structure. In a multicell structure, several Access Points are installed in the same

location. Each Access Point has the same coverage area, thereby creating a

common coverage area that increases aggregate throughput. Any workstation in the

overlapping area can associate and communicate with any Access Point covering

that area.

Figure 5-5. Multicell Configuration

⇒

To set up a BreezeNET multicell:

1. Calculate the required number of Access Points as follows: multiply the

number of active users by the required throughput per user, and divide the

result by 1.5Mbps (which is the net throughput supported by collocated Access

Points). Consider the example of five active stations, each requiring 0.5 Mbps

throughput. The calculation is (5*.5)/1.5=1.6. Two Access Points should be

used. This method is accurate only for the first few Access Points.

2. The aggregate throughput of the common coverage area is equal to the number

of co-located Access Points multiplied by the throughput of each individual

Access Point, minus a certain amount of degradation caused by the interference

among the different Access Points.

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Alvarion BreezeNET PRO.11 Betriebsanweisung Seite 112