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Crosstalk in Computer Networks

Key Takeaways

  • Computer networks refer to computers that are interconnected and can communicate with each other.

  • The crosstalk in computer networks can be regarded as a signal transmission issue that disrupts the data communication between computers that are interconnected.

  • Co-channel interference and adjacent channel interference are the two main reasons for crosstalk and interference in WiFi-connected computers.


WLAN allows computers linked together to communicate wirelessly

Computers have become such an integral part of the personal, professional, and business activities that take place in daily life. With technology advancements, computer networking has evolved into interconnecting several computers located at different places. This computer networking is the basis of communication in information technology.

Computer networks can be connected via wires or can be wireless. Unfortunately, computer networks are vulnerable to interference and crosstalk. The crosstalk in computer networks is troublesome and can result in data loss, glitches, and monetary losses. Let’s discuss computer networks and how crosstalk affects their functioning. 

Computer Networks 

Computer networks refer to computers that are interconnected. A network is a group of computers that can communicate with each other. A connected computer can share files, data, and resources with other connected computers. Networks allow streamlined communication and cost-effective resource-sharing platforms.

Computer networks utilize a centralized database. The data storage efficiency and volume of storage have been improved greatly through computer networking. Computer networks also enable cost-cutting by sharing software and hardware. Computer peripherals and internet access can be shared with the help of computer networking among different computers. The need for information technology support is reduced by centralizing the network administration in computer networks. 

How Are Computers Connected in a Network?

Computers can be connected using wires. Usually, ethernet cables are utilized for connecting the computers via these wires. Computers can also be connected to a network without wires through wireless local area networks (WLAN) via Wi-Fi.  

Wireless Local Area Networks 

WLANs allow the computers linked together to communicate wirelessly. In a wired computer network, data transmission is done through physical cables as a series of ethernet packers. In WiFi-connected computers, the packets are propagated through the medium of air. WLAN-connected computers communicate over the air within a frequency range of 2.4 GHz or 5 GHz.  

As several technology-based devices share the common medium of air, the communication of computers over WiFi in WLAN is susceptible to disturbances from the atmosphere. The quality of WLAN communication is relatively less than wired computer networks. The lower bandwidth of the radio transmission allocated for radio transmission in WiFi is one of the main reasons there is a limited quality of communication in WLAN-connected computers. The communication over WLAN is subject to higher error rates due to interference and crosstalk.

Crosstalk in Computer Networks

The crosstalk in computer networks is a signal transmission issue that disrupts the data communication between computers that are interconnected. Crosstalk reduces the signal strength and data transfer speed in WLAN-connected computers. It can lead to errors, data loss, and more chances for encryption. The loss of critical data in computer networks can cause temporary shutdowns in industries and, in certain cases, monetary losses. Co-channel interference and adjacent channel interference are the two main reasons for crosstalk and interference in WiFi-connected computers.

Some of the causes of interference and crosstalk in computer networks are:

  • The physical landscape of the location of the computer network. 

  • The presence of devices that operate at 2.4GHz, which is the frequency mostly used by WLAN computer networks.

  • Consumer electronics, such as wireless headsets, microwave ovens, or cordless phones, are in the vicinity of computer networks. The physical distance of these devices from computers influences the crosstalk in the network. 

  • Other wireless networks that can interfere with the WiFi that is utilized by WLAN.

Minimizing Crosstalk in Computer Networks Connected via WiFi 

There are several methods to minimize crosstalk in computer networks connected via WiFi.

  1. Relocate the wireless network away from nearby appliances and devices utilizing RF energy to help minimize crosstalk in computer networks. Dense buildings, doors, and walls act as a hindrance in the path of wireless signals. Planning the network considering these hindrances can improve signal strength as well as transfer speed. 

  2. In the location of the wireless computer network, unplug devices operating on the same frequency range or any electromagnetic spectrum range when you are not using them. This can reduce interference such as co-channel interference and adjacent channel interference. 

  3. Overcrowding of wireless devices in a space can lead to congestion in RF signal traffic. The physical distancing of wireless gadgets can improve the performance of computer networks.

Crosstalk in computer networks connected over WLAN via WiFi is a serious concern when handling mission-critical data. It is necessary to minimize the crosstalk in computer networks to ensure safe and reliable communication. Cadence software can help you to design and simulate systems utilizing WLAN technology. 

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