This phase increases latency because of the high radio turnaround time. WaveLAN , from Lucent Technologies , In-building wireless LAN technology. Does not require special site licenses. This results in wasted bandwidth for excess packets capture. Cells are connected by wired backbone network Supports EPM for reduced power consumption.
Radio draws power from computer.
To ensure fairness, and priority, the inter-frame spacing can be varied. Token-ring like protocols can be implemented to improve fairness properties. The access protocol is quite successful in allocating bandwidth within the recommended range, but performance deteriorates sharply outside of the operating range. Lucent WaveLAN, Motorola's Altair, Proxim's RangeLAN, Spectrix, Photinics, etc. Much past work focussed on signal propagation, fading characteristics, range, modulation technique.