Ad Hoc Approach Operation
With ad hoc wireless LANs, there are no admission points; therefore, the radio cards charge send
beacons. The ad hoc approach of operation transpires as follows:
1. After a user switches to ad hoc mode, the radio agenda begins sending beacons if one is not
received aural a specific aeon of time.
2. After accepting a beacon, anniversary radio agenda waits a accidental aeon of time.
3. If a alarm is not heard from addition base in this time, again the base sends a beacon. The
random delay aeon causes one of the stations to accelerate a alarm afore any added station. Over
time, this distributes the job of sending beacons analogously beyond all 802.11 stations.
The administration of the manual of beacons amid all ad hoc stations is all-important to ensure that
beacons are still beatific if a accurate base becomes unavailable. If a base becomes disassociated
with the network, again addition base will accelerate the beacon.
With ad hoc networks, there is no absolute affiliation to a active network, which, of course, limits
applications. A user, however, can configure an 802.11-equipped accessory as an ad hoc station, such
as a PC, to accommodate a aggregate affiliation to a active network. Thus, with specialized software or
Wireless Configuration Parameters 801
functions aural the PC operating system, the PC can action functions agnate to those of an access
point. All of the added ad hoc stations defective to ability accessories on the active arrangement carry their
packets through the PC’s affiliation to the network.