What is radio over fiber technology?

What is radio over fiber technology?

Radio over Fiber (RoF) refers to an analog transmission over fiber technology whereby light is amplitude modulated by a radio signal and transmitted over an optical fiber link to facilitate wireless access. Therefore, before radiation through the air, the signal must be up-converted to RF at the base station.

How does RF over fiber work?

RF over fiber (RFoF) or Radio over fibre (RoF) is a way of transmitting radio waves over a fiber optic cable by converting the RF signal into light by modulating the intensity of a light source (Laser or LED) with the RF signal. At the other end, the RF signal is recovered using an Optical-Electrical modulator (O/E).

Which detection technique is used in RF over fiber?

1 Direct modulation technique. In this method, the intensity of the light source is directly modulated with the RF signal and then direct detection is used at the photodetector (PD) to recover the RF signal. This is the simplest and low-cost method for optically distributing RF signals.

Do fiber optics use radio waves?

In other words, radio signals are carried over fiber-optic cable. Although radio transmission over fiber is used for multiple purposes, such as in cable television (CATV) networks and in satellite base stations, the term RoF is usually applied when this is done for wireless access.

What advantages does fiber optics have over other media?

High Bandwidth Optical fiber has a relatively high bandwidth in comparison to other transmission media. This permits much longer transmission distances and much higher signal rates than most media. For example, all undersea long-haul telecommunications cable is fiber-optic.

What are the advantages and disadvantages of fiber over other transmission media?

Fiber optic cables have a much greater bandwidth than metal cables. The amount of information that can be transmitted per unit time of fiber over other transmission media is its most significant advantage. An optical fiber offers low power loss, which allows for longer transmission distances.

Is fiber optic faster than radio waves?

Data speed Due to the direct line of sight, the data rate of radio links is higher than that of fiber optic connections. A radio link has a lower latency (less delay). In contrast, fiber optic connections may achieve higher bandwidths.