Statistical time-division multiplexing (STDM) shares a communication like TDM, but like the TDM, the time slots are not allocated to any channel. In the case of TDM, time slots are allocated to channels and reserved even if there is no data to send. This allocation is just a waste of bandwidth, and Statistical time-division multiplexing… Read more
Multiplexing is a technique that allows multiple logical signals to share a single physical channel. The two common types of multiplexing are time-division multiplexing (TDM) and statistical time-division multiplexing (STDM). In this article, I am going to discuss the time-division multiplexing. Time Division Multiplexing (TDM) transmits more than one streaming digital signal over a common
Usually, a point to Point links is used when permanent dedicated connections are required. It is a pre-established WAN communications path connection, which can securely connect two or more locations for private data services. The point to point links is available with different standards and different speed including T1 lines, Ethernet or DS3. Enterpriser usually
Serial communication is the famous and broadly used technique to transfer data between processing equipment and peripherals. Serial communication is used to transfer data across the WANs. The sending router encapsulates the data using a communication protocol. The encapsulated data is sent on a physical medium to the WAN, and the receiving router de-encapsulates the
Parallel ports usually used for connecting printers, computers, and other devices that required high bandwidth. The port is also used for interconnection between interior components of the devices. Parallel ports can be transmitted simultaneously over multiple wires. Theoretically parallel port is eight-time faster than a serial port. The serial port sends one bit while at
A serial port allows a PC or network devices to transmit or receive data one bit at a time. A serial interface is the oldest types of an interface that was also used to connect printers and external modems to a PC at that time. Modern serial ports are used in scientific instruments such as
VPN is the abbreviation for a virtual private network. VPN technology creates a safe and encrypted connection over an unsecured network, such as the Internet. It extends a private network using a public network, such as the Internet. A virtual private network uses virtual connections known as VPN tunnels instead of a dedicated Layer 2
Cellular networks are the type of wireless WAN technologies. Cellular networks provide services to connect users and remote locations where no other WAN access technologies are available. Millions of users use their smartphones and tablets to email, surf the web, download apps, and watch videos. We can easily connect computers, laptops including routers with the
Wireless internet uses wireless connectivity via radio waves instead of wires on a personnel computer, laptop, smartphone etc. Initial wireless technologies lack the high speed of broadband internet connection e.g cable and DSL, but the latest wireless technologies cover the gap. Wireless Internet service providers (WISP) typically provide wireless internet services to home users and
Network and Internet Access through Cable TV is a type of broadband internet access that uses the resources of the television cable system. It provides network edge connectivity from the internet service provider (ISP) to an end-user of the internet services in the same way as DSL and fibre to the home (FTTH) provides. Cable