Definition - What does Nonrepudiation mean? Nonrepudiation is a method of guaranteeing message transmission between parties via digital signature and/or encryption. It is one of the five pillars of information assurance (IA). The other four are availability, integrity, confidentiality and authentication. Nonrepudiation is often used for digital contracts, signatures and email messages.
Definition - What does Cellular Network mean? A cellular network is a radio network distributed over land through cells where each cell includes a fixed location transceiver known as base station. These cells together provide radio coverage over larger geographical areas.
United States Cellular Corporation, doing business as U.S. Cellular, is a regional carrier which owns and operates the fifth-largest wireless telecommunications network in the United States, serving 4.9 million customers in 426 markets in 23 U.S. states as of the first quarter of 2016.