Define the maximum communication range, R, to be the maximum distance between two radios such that they can exchange RTS, CTS, data, and ACK frames if there is no interference. In many wireless systems, a receiver can detect that another radio is transmitting even if the receiver is unable to acquire or decode the transmission because its distance from the transmitter is greater than R. The receiver can sense the presence of the transmitter by detecting its carrier. Define the carrier sensing range, RS as the maximum distance at which a receiver can detect the presence of a transmitter. Define the interference range to be RI. A receiver that is within communication range of a transmitter can receive a frame if there are no other transmissions within range RI of the receiver. A common assumption, and the one used in our textbook, is that the communication, sensing, and interference ranges are equal. However, the carrier sensing range can be tuned. For this problem set the carrier sensing range to be equal to 2R. The interference range is more complex to model. Consider two simplistic cases for modeling the interference range, and determine if the hidden terminal problem occurs or not. Assume there are no obstacles. a. Let RI = R. (This might apply to modulation techniques that are robust to interference like direct sequence spread spectrum.) b. Let RI = 2R. (High rate modulation techniques like OFDM are more sensitive to interference.)