A WLAN is required to have the minimum Eb NO of 10 dB in an indoor offi c environment The background noise at 2 4 GHz is 120 dBM If the transmit power is 20 mW and there is no line of sight NLOS between the AP and mobile terminals what is the coverage of the AP Assume a data rate of 1 Mbps and channel bandwidth of 0 5 MHz Use the joint technical commitee JTC path loss model in which for NLOS conditions in the indoor offi ce environment path loss at the first meter A is 37 7 dB and path loss exponent is 3 3 Assume power loss from the fl oors to be 1 dB and a shadow effect of 10 dB