Found 826 Articles for Network

Bluetooth communication networks are prone to signal interferences in environments where other wireless networks coexist. The problem is aggravated when they use the same frequency bands. Bluetooth technology and IEEE 802.11 networks, like Wireless LANs (WLANs) and WiFi, operate in the same unlicensed 2.4 GHz ISM (Industrial, Scientific, and Medical) radio band. In order to reduce the impact of these interferences, Adaptive Frequency Hopping (AFH) was introduced by Bluetooth Special Interest Group (SIG).In Adaptive Frequency Hopping, when a Bluetooth device is introduced in the network, it identifies the channels that are presently fixed for communication by WiFi or WLANs. It ... Read More

A piconet is a small Bluetooth network that connects mobile devices wirelessly over a short range of 10m radius, using ultra-high frequency (UHF) radio waves, to form a personal area network (PAN).A piconet can be formed by at most 8 stations, one of which is the master node and the rest slave nodes. Thus, it can accommodate a maximum of 7 slaves. The master node is the primary station that manages the small network. The slave stations are secondary stations that are synchronized with the primary station.Communication can take place between a master node and a slave node in either ... Read More

A scatternet is a type of Bluetooth network that is formed by the interconnection between two or more individual Bluetooth networks, called piconets. The devices in the scattered should be Bluetooth enabled so that they can communicate wirelessly over a short range of within 10m radius using ultra-high frequency (UHF) radio waves.In a scatternet, there must be at least two piconets. The nodes in a scatternet may be of three types −Master Node − It is the primary station in each piconet that controls the communication within that piconet.Slave Node − A slave is a secondary station in a piconet ... Read More

A Token Bus Network is a network protocol used to transmit data. In a Token Bus Network, a virtual ring is formed between nodes/stations and token is transferred from one station to another in a sequential manner. Each node in a Token Bus Network knows the address of its successor and predecessor and can transmit data if it has the token. A Token Ring Network is similar to a Token Bus Network but it works around the physical ring instead of a virtual ring. A token is passed from one node to another in a sequential manner and each node ... Read More

Both CSMA/CA and CSMA/CD are network protocols for transmission that operate in the Medium Access Control Layer, however there are significant differences in the way they operate. Read through this article to find out more about CSMA/CA and CSMA/CD and how they are different from each other.What is CSMA/CA?CSMA/CA is a network protocol for carrier transmission that stands for Carrier Sense Multiple Access with Collision Avoidance. It works in the same media access control layer as CSMA/CD. This protocol is effective before the collision.Algorithm of CSMA/CAThe algorithm of CSMA/CA is as follows −When a frame is ready, the transmitting station ... Read More

There are several types of computer and mobile networks to connect world’s digital devices to communicate and share data with each other. These communication technologies provide an efficient way of connecting devices for data sharing and internet access. In this article, we will discuss the major differences between cellular and WiFi networks. The basic difference between the two is that a WiFi network uses micro and radio waves to provide high-speed data transfer among different computing devices, whereas a cellular network uses mobile towers to enable mobile device communication and provide internet access on the device. Other important differences between ... Read More

A Malware is a malicious program that is used by attackers to perform illegal operations on a user's machine, such as stealing personal information, corrupting system/network, encrypting data for "ransom" or deleting the data, etc.An Adware is a program that displays Ads during its execution. Developers get money from this advertisement. This application may capture user activity and display ads accordingly. An attacker can misuse this feature of adware and can compromise the system security.Read through this article to find out more about Malware and Adware and how they are different from each other.What is a Malware?Malware is any program ... Read More

Code Division Multiple Access (CDMA) is a protocol used for 2G and 3G communication. In CDMA, a channel carries all types of transmission simultaneously without division of bandwidth or time. Data from different stations is transmitted simultaneously using different code modulation.Long-Term Evolution (LTE) is a high-performance interface for cellular mobile communications. It supports high-speed networks and at present, it is the fastest network protocol for smartphones and mobile phones.Read through this article to find out more about CDMA and LTE and how they are different from each other.What is CDMA?CDMA uses a single channel to carry all signals at the ... Read More

WiFi is a wireless network to connect nearby devices with each other and share the Internet via hotspots. Ethernet, on the other hand, is a LAN network standard used in wired LAN. Go through this article to find out more about the features of WiFi and Ethernet and how they are different from each other.What is WiFi?WiFi stands for Wireless Fidelity. It defines any network based on the 802.11 standards, allows computers and devices with the required wireless capacity to communicate via radio waves with other computers or devices. IEEE established the 802.11 network standards, which describe how two wireless ... Read More

WiFi is a wireless network that is used to connect nearby devices with each other and share the Internet via hotspots. The Internet, on the other hand, is a global network of networks where computers communicate with each other via Internet Protocol. Go through this article to find out more about the features of WiFi and the Internet and how they are different from each other.What is WiFi?WiFi stands for Wireless Fidelity. It defines any network based on the 802.11 standards, allows computers and devices with the required wireless capacity to communicate via radio waves with other computers or devices. ... Read More