Found 125 Articles for Tech News

5G Technology: What is, How Does It Work

Pranav Bhardwaj
Updated on 02-Jun-2022 09:56:01

217 Views

The fifth generation of cellular technology is referred to as 5G. The goal is to improve wireless service speed, reduce latency, and boost flexibility. The potential top speed of 5G technology is 20 Gbps, but the highest speed of 4G is just 1 Gbps. Virtualized and software-driven 5G networks make use of cloud technology. With a seamless open roaming capability between cellular and Wi-Fi connectivity, the 5G network will also ease mobility.5G also promises decreased latency, which can help business apps and other digital experiences run better (such as videoconferencing and self driving cars). The time it takes for devices ... Read More

What is High Speed Downlink Packet Access (HSDPA)?

Bhanu Priya
Updated on 21-Mar-2022 06:47:02

520 Views

The full form of HSDPA is High-Speed Downlink Packet Access. It is a new protocol used in mobile telephone data transmission. It is called a 3.5G technology.Basically, this standard will provide download speeds on a mobile phone equivalent to an ADSL line in a home, by removing any limitations placed on the use of your phone by a slow connection.More importantly, it is an evolution and improvement on W-CDMA, (Wideband Code Division Multiple Access) a 3G based protocol. It helps in improving the data transfer rate by a factor of at least five over W-CDMA. It can also achieve theoretical data ... Read More

The Bluetooth Protocol Stack

Moumita
Updated on 22-Oct-2023 02:32:25

22K+ Views

Bluetooth network technology connects mobile devices wirelessly over a short-range to form a personal area network (PAN). The Bluetooth architecture has its own independent model with a stack of protocols, instead of following the standard OSI model or TCP/IP model. Another unique feature is that it is not mandatory for all the devices in the Bluetooth system to use all the protocols in the stack. This is because Bluetooth is designed to be used by myriad applications and the application designates which part of the protocol stack is to be used. Protocols in the Bluetooth Protocol Stack ... Read More

Bluetooth Usage and Applications

Moumita
Updated on 22-May-2020 11:56:10

11K+ Views

Bluetooth is a network technology that connects mobile devices wirelessly over a short-range to form a personal area network (PAN). They use short-wavelength, ultra-high frequency (UHF) radio waves within the range 2.400 to 2.485 GHz, for wireless communications.Bluetooth UsageUsage of Bluetooth can be broadly categorized into three areas −Access Points for Data and Voice − Real-time voice and data transmissions are provided by Bluetooth by connecting portable and stationary network devices wirelessly.Cable replacement − Bluetooth replaces the need for a large number of wires and cables of wired networks. The connections can be made instantly and are retained even when ... Read More

Logical Link Control Adaptation Protocol (L2CAP)

Moumita
Updated on 22-May-2020 11:53:03

6K+ Views

Logical Link Control and Adaptation Protocol (L2CAP) is a protocol used in the Bluetooth standard that provides adaption between higher layers and the baseband layer of the Bluetooth stack. It operates just above the host-controller interface (HCI) passing data frames from the higher layers to either HCI or Link Manager.The following diagram shows the position of L2CAP in Bluetooth protocol architecture −Functions of L2CAPAdaptation between higher-layer frames and lower layer frames of the Bluetooth protocol stack.Support for both connection-oriented as well as connectionless services.Supporting two links for the Baseband layer −Synchronous Connection-Oriented (SCO) links for real-time voice traffic using reserved ... Read More

The Bluetooth Radio Layer

Moumita
Updated on 22-May-2020 11:51:06

2K+ Views

The Bluetooth radio layer is the lowest layer of Bluetooth architecture that corresponds to the physical layer of the OSI model. It lays down the physical structure and specifications for the transmission of radio waves.The position of the radio layer depicted in the following diagram −Characteristic Features of Bluetooth Radio LayerThe Bluetooth radio layer lays down the requirements of the Bluetooth transceiver device that communicates using Bluetooth technology.It defines air interface, frequency bands, frequency hopping specifications, and modulation techniques.This layer is responsible for moving data bits from the master device to the slave device, and vice versa.It is a low-power ... Read More

The Bluetooth Protocol Architecture

Moumita
Updated on 03-Nov-2023 03:33:56

27K+ Views

Bluetooth network technology connects mobile devices wirelessly over a short-range to form a personal area network (PAN). The Bluetooth architecture has its own independent model with a stack of protocols, instead of following the standard OSI model or TCP/IP model. The protocols in the Bluetooth standard can be loosely grouped into the physical layer, data link layer, middleware layer, and application layer as shown in the following diagram − Protocols in the Bluetooth Protocol Architecture Physical Layer − This includes Bluetooth radio and Baseband (also in the data link layer. ... Read More

Adaptive Frequency Hopping

Moumita
Updated on 22-May-2020 11:41:52

393 Views

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

What is Bluetooth?

Moumita
Updated on 27-Apr-2020 07:18:51

5K+ Views

Bluetooth is a network technology that connects mobile devices wirelessly over a short-range to form a personal area network (PAN). They use short-wavelength, ultra-high frequency (UHF) radio waves within the range 2.400 to 2.485 GHz, instead of RS-232 data cables of wired PANs.Features of BluetoothBluetooth technology was released in 1999 as Bluetooth 1.0, by Special Interest Group (SIG) who continues to manage it.It was initially standardized as IEEE 802.15.1.Mobile computing devices and accessories are connected wirelessly by Bluetooth using short-range, low-power, inexpensive radios.UHF radio waves within the range of 2.400 to 2.485 GHz are using for data communications.A PAN or ... Read More

What is piconet?

Moumita
Updated on 27-Apr-2020 07:13:52

5K+ Views

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

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