Power Control.docx

The objective of the MS Power Control algorithm is to adjust the output power of the MSs so that a desired signal strength is received in each BTS. The desired signal strength is however depending on the pathloss and quality, see Figure 1and Figure 2. The power range, where regulation is possible, is limited by the transmitter of the MS. Note that the algorithms in MS Power Control and BTS Power Control are the same (see Reference [5]). The graph in Figure 1 shows the MS output power versus the pathloss between an MS and a BTS. An MS is only capable of transmitting at distinct power levels. Figure 1 also shows schematically how the signal strength received in the BTS varies with the pathloss between the MS and the BTS.

Figure 1 MS Output Power and BTS Signal Strength Versus Pathloss. Quality Is Not Taken into Account.