سال انتشار: ۱۳۸۶

محل انتشار: پانزدهیمن کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Abdorasoul Ghasemi – Department of Electrical Engineering AmirKabir University of Technology, Hafez Avenue, Tehran,Iran, 15914
Karim Faez – Department of Electrical Engineering AmirKabir University of Technology, Hafez Avenue, Tehran,Iran, 15914

چکیده:

Opportunistic power control can be used as a generalized framework for distributed power control in wireless networl<s. In this paper, we investigate this scheme for wireless ad hoc netvvorks where channel state changes due to the mobility of nodes. Using opportunistic power control, a node increqses its power in good and decreases it in bad channel condition, Considering some real reslriclions on nodes mobility
and mqximum allowable transmission power in each time slot, we use opporhmistic power control to determine the power of mobile nodes in each time slot in a time4ivision multiple access (TDMA) wireless ad hoc network. I{e compare the network throughput and power consumption of this scheme with the target tracking ctpproach that aim at hitting a Signal to Interference plus Noise Ratio (SINR) target in all time slols. Simulation results show thal opportunistic algorithm inherently has a scheduling property that results in a signficant improvement in throughputand power consumption of the network and makes it more appropriate for distributed power control in vireless tld hoc networks