In telecommunication, both Broadband and Narrowband are terms used by internet service providers to describe how data is channeled and accessed across multiple radio frequencies. Understanding and comparing the two is important if one wishes to set up a network at home or workplace. Read this article to decide if you require a broadband or a narrowband connection.
What is a Broadband?
The term “Broadband” was popularized in the late 1990s. It was used as a marketing term for internet access which was faster than traditional dial-up access. Broadband is the transmission of wide bandwidth data over a high-speed internet connection. It enables messages to be sent simultaneously.
Broadband transports multiple signals at a wide range of frequencies and internet traffic types. Broadband also requires a medium for its propagation e.g., optical fibers, coaxial cables, wireless internet (radio) and satellites.
Is Broadband Wi-Fi?
When it comes to the difference between traditional Wi-Fi and Broadband, broadband would be described as the cables or wires coming into your house and plugged into a wireless router. The wireless internet signals transferred from this router into the air would be called Wi-Fi. In short, Broadband and Wi-Fi are not the same things. Instead, they are two different technologies that complement each other. Read LAN vs WAN Port
Types of Broadband
Following are the six major types of broadband technologies present in the world today:
What is a Narrowband?
Narrowband is the traditional dial-up method of accessing the internet. It involves connecting your device to a modem attached to the telephone line. Narrowband, as the name suggests, carries data across a narrow range of frequencies i.e, a narrow bandwidth. Its speed is also limited to 56 kilobytes per second.
The telephone line infrastructure contributed greatly to the rapid expansion of the internet at the closing of the previous century. However, greater advancements in technology required easier access to the internet with greater internet speed.
Uses of Broadband
A broadband internet connection is the backbone of a region’s growth and development. In today’s digital world, the utilization of a broadband connection reflects the economic situation of a country. Businesses rely greatly on broadband and other online practices. Internet-based technologies have become pivotal in improving the quality of life. In this highly connected world, low or no connectivity is equivalent to restricting businesses and individuals from rightfully prospering.
Advantages of Broadband
Advantages of broadband include:
Less downtime The perfect option for public safety services and criminal surveillance applications because it works well with heavy applications
Disadvantages of Broadband
Some disadvantages of a Broadband connection include the following:
You can check Data Masking Vs Encryption
Comparison: Broadband vs Narrowband
More bandwidth means higher data rates. Narrowband channels feature lower data rate transmissions compared to broadband channels. Broadband offers megabytes of download and upload speeds per second. Narrowband channels do not exceed 56 kilobytes per second data rate. To put it simply, broadband connections are faster.
Narrowband channels take up less frequency spectrum than broadband signals. On the other hand, broadband signals are pulsatile signals that occupy a significant portion of the frequency spectrum only for a short while. Broadband channels offer a bandwidth of over 1 MHz while narrowband channels offer only less than 25 kHz of bandwidth.
Noise is inversely related to bandwidth. Greater bandwidth, as in broadband connections, leads to more noise. Conversely, the lesser bandwidth of the narrowband connections makes them less susceptible to noise.
Fading is the distortion in signals. In terms of internet connectivity, fading is either Flat or Selective, depending upon its mechanism.
A narrowband channel faces flat fading as all frequency components are distorted almost equally. This means adding more frequencies to the bandwidth will not solve the problem. Narrowband channels always fade uniformly.
A broadband connection faces selective fading meaning the frequencies are out of phase. A frequency equalizer can help remove the distortion.
Narrowband covers communication over a very long range, efficiently. Broadband covers a lesser range comparatively. Also, increasing its range will result in decreased efficiency and a lesser frequency spectrum is covered.
The narrowband frequency spectrum is subjected to more filters, isolating the channels. This makes narrowband a more secure mode of communication. The filters can be chosen at will.
Broadband channels, on the other hand, cannot be subjected to such filters. The channels are, thus, not isolated posing a security threat to broadband users.
Narrowband is a primitive technology that requires low system complexity to set up. Broadband, being the newer technology, have greater system complexity as it is based on complex circuits and stages.
A narrow band system requires less operation power. This makes it suitable for localized and shorter-range apps that demand short-distances transmission. Examples include radio-frequency identification (RFID) and commercial vehicle remote keyless entry (RKE) devices.
Broadband finds its application in instant messaging, general internet browsing, gaming, fast file downloading and internet telephony.
Both Broadband and Narrowband connectivity are useful technologies. While broadband may offer speedy internet, narrowband comes with its benefits. Both technologies are being developed for their relevant applications. However, it is up to users to choose an internet connection that best suits their requirements.