LTE uses two different radio links for downlink and uplink, that is, from tower to device, and vice versa. For the downlink, LTE uses an OFDMA (orthogonal frequency division multiple access), which requires MIMO.
What you are referring to is called plaque, and it's a hallmark of atherosclerosis or arteriosclerosis (they both mean the same thing). Basically, cholesterol deposits end up lining the interior walls (lumen, intima) of the arteries narrowing the opening.
Atherosclerosis is the hardening of the arteries. Your arteries are blood vessels that carry oxygen and blood to muscles in your body. In hardening of the arteries, fatty materials build up on the walls inside of your arteries.These materials are made up of cholesterol and fat.therosclerosis: Atherosclerosis is the buildup of fatty deposits called plaque on the inside walls of arteries. Arteries are blood vessels that carry oxygen and ... more about Atherosclerosis.