The "hidden terminal problem" refers to the fact that many people can never seem to find their mobile phones.

The bit error rate (BER) of a wireless channel decreases as the signal-to-noise ratio (SNR) increases.

Multipath propagation occurs when a sender sends multiple copies of a frame to a receiver, which is relayed over different by base stations or other wireless devices to the receiver.

Path loss refers to the dropping of link-layer frames that are being relayed among wireless access points due to buffer overflow, just as network-layer datagrams are dropped at routers with full buffers.

Path loss refers to the decrease in the strength of a radio signal as it propagates through space.

The "hidden terminal problem" happens when A sends to B over a wireless channel, and an observer, C (that can be even closer to A than B), does not detect/receive A's transmission because of physical obstacles in the path between A and B.

The "hidden terminal problem" happens when A sends to B over a wireless channel, and an observer, C (that is further away from A than B), does not detect/receive A's transmission because the signal strength of A's transmission has faded significantly by the time it reaches C.

The "hidden terminal problem" happens when A sends to B over a wireless channel, and an observer, C (that can be even closer to A than B), does not detect/receive A's transmission because of physical obstacles in the path between A and C.

Multipath propagation occurs when portions of the electromagnetic wave reflect off objects and the ground taking paths of different lengths between the sender and a receiver, and thus arriving at the receiver at slightly different points in time.

Path loss refers to link-layer frames that are corrupted due to the higher bit error rates in wireless channels.

The bit error rate (BER) of a wireless channel increases as the signal-to-noise ratio (SNR) increases.