User`s guide

Welcome to the Aironet 4000 Series Wireless LAN Adapter

1-15

Figure 1.6 - Heavy Overlap Coverage Option

By arranging the Access Points so the overlap in coverage

area is nearly maximized, a large number of mobile stations

can be supported in the same wireless infrastructure. How-

ever, units in overlapping coverage areas on the same

frequency will detect adjacent cell trafﬁc and delay trans-

missions that cause collisions. This reduces the aggregate

radio system throughput. Heavy cell overlap is not recom-

mended for maximum system throughput. Due to the redun-

dancy in coverage overlap, system access is not lost in the

event of an Access Point failure. Upon failure of the Access

Point, the station will automatically roam to an operational

Access Point. With this architecture, all Access Points and

PC Card units must be conﬁgured with the same Service

Set Identiﬁer (SSID).

Wired LAN