Cellular communication is a generic term used in biology and more in depth in biophysics, biochemistry and biosemiotics to identify different types of communication methods between living cells. Some of the methods include cell signaling, among others. This process allows millions of cells to communicate and work together to perform important bodily processes that are necessary to survive. Both multicellular and unicellular organisms depend to a large extent on cell-cell communication.
Intercellular communication refers to communication between cells. The trafficking of membrane vesicles plays an important role in intercellular communications in humans and animals, for example in synaptic transmission, secretion of hormones by vesicular exocytosis. Inter-species and inter-community signaling is the latest field of research for microbe-microbe and microbe-animal / plant interactions for the variety of purposes in the host-pathogen interface.
A cellular network or a mobile network is a communication network in which the latter is wireless. The network is distributed over land areas called cells, each served by at least one fixed location transceiver, but more typically three cell sites or transceiver base stations. These base stations provide the cell with network coverage that can be used for voice, data and other transmission. A cell typically uses a different frequency system of neighboring cells, to avoid interference and to provide guaranteed quality of service within each cell.