Poster: Efficient power control based on interference range in wireless ad hoc networks

Energy management through power control in wireless ad hoc networks has a serious hidden terminal problem called POINT, which is caused by the varied interference range induced by the controlled transmission power. Current researches that solve the POINT problem are inefficient as they either increase the energy consumption, or degrade the network performance through prohibiting effective data transmissions or leading to collisions in some scenarios. This work presents IRPC, a novel protocol to solve the POINT problem completely. IRPC makes the data packet transmitted at the required minimum power. Meanwhile, it makes the interference range of each link covered by the CTS transmission but without increasing CTS’s transmission power, through utilizing a signature detection method. It also makes CTS carry the information of interference range, according to which other nodes can determine whether they are outside the interference range of the ongoing link and can initiate data transmissions, so as to permit effective transmissions and avoid collisions.