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.
Fat (cholesterol). Atherosclerosis, or stiffening of the arteries, can cause build-up of fat inside the blood vessel walls, and the fat can become inflamed and calcified. This â¦ is called a calcified plaque. If the plaque gets vulnerable, the top of the plaque may rupture and the inside fat comes in contact with the circulating blood. This causes an immediate blood clot. If the plaque is in the coronary arteries, and if the blood clot blocks the coronary arteries, the result is a heart attack.