Minimizing Ceased Areas with Power Control for Spatial Reuse in IEEE 802.11 Ad Hoc Networks

In this paper, based on the concept of ceased areas, the spatial reuse in IEEE 802.11 ad hoc networks is enhanced by transmission power control (TPC). A ceased area is created by a transmitter-receiver pair where all other nodes should cease their transmissions for a while. The size of a ceased area varies with the transmission power. A new TPC scheme that can minimize the induced ceased area is proposed. It is practical without needs to know the transmitter-receiver distance. And its performance in network throughput is superior to previous TPC schemes.