Space(s): Same frequency can be reused when the base stations are separated in space. Multiplexing The wireless channels can be multiplexed in four dimensions: Time(t): A channel gets the whole frequency spectrum for a certain amount of time. Most decisions for accessing the wireless medium is made in the MAC layer.ĥ The wireless channels can be multiplexed in four dimensions: Hence, multiple use of a shared medium is a major challenge in wireless networking. Multiplexing: in a mobile and wireless network, the wireless medium is shared by many nodes. The Open Systems Interconnection (OSI) model is a product of the Open Systems Interconnection effort at the International Organization for Standardization (ISO). 1 Hidden Terminal Problem and Exposed Terminal Problem in Wireless MAC Protocolsģ Networking basics Medium Access Control (MAC) Protocol
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