Broadband vs Baseband vs Leased Line

Broadband vs Baseband vs Leased Line

What is a broadband connection?

Broadband is a telecommunication system in which a wide band of frequencies is available to transmit information. In broadband, information can be multiplexed and sent on many different frequencies or channels within the band concurrently. It allows more information to be transmitted in a given amount of time. This medium can be coaxial cable, optical fiber, radio or twisted pair. It's used to mean any high-speed Internet access.

What is a baseband connection?

Baseband is the original frequency range of a transmission signal before it is converted, or modulated, to a different frequency range. In baseband, information is carried in digital form on a single non multiplexed signal channel on the transmission medium. A common example is the Ethernet protocol, which transfers data using the original baseband signal. This communication system is able to transfer or transmit frequencies that are near zero.

What is a leased line connection?

Leased lines are used for Internet, data and even telephone services. It is a premium Internet connectivity product, normally delivered over fiber, which provides uncontended, symmetrical speeds with full duplex. It is also known as an ethernet leased line, dedicated line, data circuit or private line. It is a reserved circuit between two points. The leased line is always active and available for a fixed rental. They are typically run on fiber optic cables to provide large bandwidth and speed.

The differences between broadband, baseband, and leased Line

  • A leased line simply means that you have leased a physical connection from one endpoint to another endpoint. This is typically a private network connection between two of your sites.

  • With broadband connections, you get a line and internet service as a package. With leased lines, you can lease a line to an ISP and then separately negotiate an Internet service contract.

  • In baseband, data is sent as digital signals through the media as a single channel that uses the entire bandwidth of the media.

  • A leased line is a dedicated connection between your premises and the local exchange. On the other side, broadband is not a dedicated connection.

  • Broadband is variable bandwidth. But the leased line is fixed bandwidth.

  • The leased line offers identical upload and download speeds. In contrast, broadband offers faster for downloads than for uploads speed.

  • Broadband is subject to contention with other users. On the other hand, the leased line is not subject to contention with other users.

  • The leased line would give full bandwidth for all computers if all devices placed in one network, which means if leased line connection has 10MBps than every each system will have full bandwidth 10MBps even if all systems access the internet at once.

  • Baseband uses low pass channel.

  • In broadband connection, if there is 100Mbps bandwidth, then the speed will be shared for every each system. That means all the systems access the internet at once the speed will be very low. And broadband uses a bandpass channel.

  • Baseband communication is bi-directional, which means that the same channel can be used to send and receive signals.

  • Baseband means that where only one device at a time can send a frame. On the other hand, broadband means that there are multiple channels that can simultaneously carry frames across the link.

  • Leased line connections are usually symmetric while broadband connections are usually asymmetric.

  • Leased lines tend to cost considerably more. On the other hand, broadband connections are usually priced at levels home users and small businesses can reasonably afford.

  • Baseband offers greater distances than line drivers but is more complex and therefore expensive.

  • With leased lines, you usually get a service level agreement which means that (in theory at least) if something goes wrong an engineer should be out to fix it quickly. With broadband connections, you get a very little guarantee of anything.

  • In baseband, frequency multiplexing is not possible.

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