What is space division multiplexing what are its applications?

Currently, space division multiplexing (SDM), where individual data streams are transmitted from different antennas simultaneously, is expected to be a promising technology for achieving a high data rate within a limited frequency band in a multiple-input multiple-output channel.

Where is space division multiplexing used?

Examples include an analogue stereo audio cable, with one pair of wires for the left channel and another for the right channel, and a multi pair telephone cable. In wireless communication, space-division multiplexing is achieved by multiple antenna elements. When the carrier is frequency, FDM is used.

What is the space division multiplexing?

1. It’s a multiplexing technique in which physical separation of transmitting (antennas) is used to deliver simultaneously different data streams. SDM technique is an approach to MIMO systems and it improves capacity by increasing the number of antennas in the fading channel.

What is SDM in optical fiber?

Acronym: SDM. Definition: a multiplexing technique for optical data transmission where multiple spatial channels are utilized. Alternative term: spatial division multiplexing. More general term: optical multiplexing. Category: lightwave communications.

What are the advantages of multiplexing?

The main advantage of multiplexing is that you can send a lot data over 1 physical line. It was first used in telephone networks to relay voice conversations over twisted [wire] pairs.

What is the purpose of multiplexing?

The input signals can be either analog or digital. The purpose of multiplexing is to enable signals to be transmitted more efficiently over a given communication channel, thereby decreasing transmission costs.

What is a channel in multiplexing?

Channel multiplexing is the process of splitting or sharing the capacity of a high speed channel/telecommunication link to form multiple low capacity/low speed sub-channels. Each such sub-channel can then be used by multiple end nodes as dedicated links.

What is wavelength division multiplexing (WDM)?

Definition – What does Wavelength Division Multiplexing (WDM) mean? Wavelength division multiplexing (WDM) is a technology or technique modulating numerous data streams, i.e. optical carrier signals of varying wavelengths (colors) of laser light, onto a single optical fiber.