Bluetooth What is Bluetooth

4/9/2017 Bluetooth ­ What is Bluetooth? Search HOME TECHNOLOGY MOTIVATION ARTICLE Bluetooth ‐ What is Bluetooth? Media ? Types Of • Bluetooth is, with the infrared, one of the major technologies ABOUT US What Is Transmission BY DINESH THAKUR wireless DISCUSSION FORUM developed to achieve WPAN. Bluetooth is a wireless LAN technology used to connect devices of different functions such as telephones, computers (laptop or desktop), notebooks, cameras, printers and so on. • Bluetooth project was started by SIG (Special Interest Group) formed by four companies IBM, Intel, Nokia and Toshiba for interconnecting computing and communicating devices using short­ range, lower­power, inexpensive wireless radios. • The project was named Bluetooth after the name of Viking king – Harald Blaatand who unified Denmark and Norway in 10th century. Transmission Media. Transmission Media Transmission Modes ‐ What Are The Different Transmission computer and non computer application: 1. It is used for providing communication between peripheral devices like wireless mouse or keyboard with the computer. 2. It is used by modern healthcare devices to send signals to monitors. 3. It is used by modern communicating devices like mobile phone, PDAs, palmtops etc to transfer data rapidly. 4. It is used for dial up networking. Thus allowing a notebook computer to call via a mobile phone. Computer Networking Computer Network Comm. Networks ALOHA ‐ What Is Network Tech. ALOHA? What Is Data Transmission? Types Of Data Transmission. Multiple Access Switching IP Address Sys What Is Congestion Routing Control? Describe The Services / App. Congestion Control Security Used Types Of Routers Structured Query (SQL) Java Script Data Communication ‐ HTML Language What Is Data Cascading Style Sheet Communication? C Programming (Theory) What Is Difference Between UTP And STP Cable? C Programming (Pratical) Visual Basic What Is Error C++ Programming Correction And Java Programming Detection? Java Servlet OSI (Open Systems Interconnection) Reference Model http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth Computer Fundamental Modes? Algorithm Commonly • Nowadays, Bluetooth technology is used for several Website Developement Java Server Pages Computer Graphics 1/8 4/9/2017 Bluetooth ­ What is Bluetooth? 5. It is used for cordless telephoning to connect a handset and its local base station. MAC Layer ‐ What Is 6. It also allows hands­free voice comml1nication Coaxial Cable ‐ Write with headset. Short Note On Coaxial 7. It also enables a mobile computer to connect to a Cable fixed LAN. Twisted‐Pair : What Is Digital Electronics 8. It can also be used for file transfer operations from one mobile phone to another. Twisted‐Pair Cable? C# Programming What Is Database System 9. Bluetooth uses omnidirectional radio waves that can through walls or other non­metal barriers. Hubs/Repeaters/Bridges/Router/Switches/ Bluetooth devices have a built­in short range radio transmitter. The rate provided is 1Mbps and uses 2.4 GHz bandwidth. Bluetooth is that when the device is within the scope of a other devices automatically start the transfer information without the user noticing. a small network between the devices is created and the user can accessed as if there were cables. Bluetooth Architecture Electronic Commerce MAC Layer Protocols? Management (MIS) Data Structures Software Engineering Struts 2 Tutorial Transceivers/ Gateway Cyclic Redundancy PHP (Hypertext Preprocessor) Troubleshooting Check (CRC) How to Sliding Window python Protocol IEEE 802.5 Token Ring Bound Transmission AngularJS Tutorial Compiler Design Media ‐ What Is Bound Transmission Media ? Type Of Bound Transmission Media Bluetooth architecture defines two types of networks: 1. Piconet 2. Scattemet Explain Hamming Code Unbound Transmission Media ‐ What Is 1. Piconet Unbound Transmission • Piconet is a Bluetooth network that consists of one Media. Type Of primary (master) node and seven active secondary Unbound Transmission (slave) nodes. Media • Thus, piconet can have upto eight active nodes (1 master and 7 slaves) or stations within the distance of 10 meters. Optical Fibers: What • There can be only one primary or master station in each piconet. Bluetooth ‐ What Is • The communication between the primary and the secondary can be one­to­one or one­to­many. Stop & Wait Protocol Is A Optical Fibers? What Is Piggybacking? Bluetooth? What Is An Analog Signal? Characteristics Of Analog Signal. Data Link Layer http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth 2/8 4/9/2017 Bluetooth ­ What is Bluetooth? Analog Vs Digital ‐ Difference And Comparison How Does A Single Bit Error Differs From Burst Error. What Is A Digital Signal? Characteristics Of Digital Signal Wireless Communication ‐ What Is Wireless Communication? IEEE 802.11: • All communication is between master and a slave. WIRELESS LAN Salve­slave communication is not possible. Broadband Versus • In addition to seven active slave station, a piconet Baseband can have upto 255 parked nodes. These parked nodes Ethernet Cables ‐ are secondary or slave stations and cannot take part What Is An Ethernet in communication until it is moved from parked state to active state. Cable? Gigabit Ethernet: 2. Scatternet 1000Base‐SX, • Scattemet is formed by combining various piconets. 1000Base‐LX, • A slave in one piconet can act as a master or 1000Base‐CX, 1000 primary in other piconet. Base‐T • Such a station or node can receive messages from the master in the first piconet and deliver the message to its slaves in other piconet where it is acting as master. This node is also called bridge slave. Encoding Techniques • Thus a station can be a member of two piconets. RS‐232C ‐ What Is RS‐ • A station cannot be a master in two piconets. 232C? And Codec Asynchronous Vs. Synchronous Transmission Modes Optical Fiber ‐ Optical Transmission Modes Advantages And Disadvantages Of Optical Fiber Fast Ethernet : 100 Base‐TX, 100 Base‐ FX, 100 Base‐T4 http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth 3/8 4/9/2017 Bluetooth ­ What is Bluetooth? Satellite Communication – What Is A Satellite Communication? Microwave Transmission – What Is A Microwave Transmission? Routers – What Is Router? Characteristics Of Routers. Router Protocols ARCNet ‐ What Is ARCNet Infrared Transmission– What Is A Infrared Transmission? What Is NICs (Network Bluetooth layers and Protocol Stack Adapter) Data Communication • Bluetooth standard has many protocols that are organized into different layers. Bridges – What Is Bridges? Bridge • The layer structure of Bluetooth does not follow Protocols OS1 model, TCP/IP model or any other known ARPANET ‐ What Is model. • The different layers and Bluetooth protocol architecture. ARPANET? Radio Wave – What Is A Radio Wave Transmission? What Are Transmission Errors? Gateways – What Is Gateway? Characteristics Of Gateways. What Is Parity Check? Digital Signal Transmission MEDIA ACCESS CONTROL http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth 4/8 4/9/2017 Bluetooth ­ What is Bluetooth? Radio Layer Repeaters – What Is • The Bluetooth radio layer corresponds to the Repeaters? physical layer of OSI model. Classification Of • It deals with ratio transmission and modulation. Repeaters • The radio layer moves data from master to slave or vice versa. • It is a low power system that uses 2.4 GHz ISM band in a range of 10 meters. • This band is divided into 79 channels of 1MHz each. Bluetooth uses the Frequency Hopping Spread Spectrum (FHSS) method in the physical layer to avoid interference from other devices or networks. • Bluetooth hops 1600 times per second, i.e. each device changes its modulation frequency 1600 times per second. • In order to change bits into a signal, it uses a version of FSK called GFSK i.e. FSK with Gaussian bandwidth filtering. Baseband Layer • Baseband layer is equivalent to the MAC sublayer in LANs. • Bluetooth uses a form of TDMA called TDD­TDMA (time division duplex TDMA). • Master and slave stations communicate with each other using time slots. Error Control In Communication Networks Virtual LAN (VLAN) – What Is Virtual LAN? Characteristics Of VLAN. HUB ‐ What Is Hub? Flooding – What Is Flooding? Tunneling – What Is Tunneling? Quality Of Service (QOS) Switching Hubs – What Is Switching Hubs? Characteristics Of Switching Hub. Data Communication Software 10BASE T ‐ What Is 10BASET (Twisted Pair • The master in each piconet defines the time slot of 625 µsec. Ethernet) ? • In TDD­ TDMA, communication is half duplex in which receiver can send and receive data but not at the same time. 100Base T (Fast • If the piconet has only no slave; the master uses Ethernet Expansion even numbered slots (0, 2, 4, ...) and the slave uses Layering The odd­numbered slots (1, 3, 5, .... ). Both master and Communications slave communicate in half duplex mode. In slot 0, master sends & secondary receives; in slot 1, secondary sends and primary receives. • If piconet has more than one slave, the master uses even numbered slots. The slave sends in the next 100Base T ‐ What Is Ethernet)? Type Of 100Base T Process Implementation Of LAN Using Fiber‐Optic Cable 10 Base 2 – What Is 10Base2 (Thin http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth 5/8 4/9/2017 Bluetooth ­ What is Bluetooth? odd­numbered slot if the packet in the previous slot Net/Black Ethernet) was addressed to it. Network • In Baseband layer, two types of links can be created Architectures between a master and slave. These are: 10 Base 5 ‐ What Is 1. Asynchronous Connection­less (ACL) 10Base5 (Thick • It is used for packet switched data that is available Net/Yellow Ethernet)? at irregular intervals. Optical Source • ACL delivers traffic on a best effort basis. Frames can be lost & may have to be retransmitted. • A slave can have only one ACL link to its master. • Thus ACL link is used where correct delivery is preferred over fast delivery. • The ACL can achieve a maximum data rate of 721 kbps by using one, three or more slots. 2. Synchronous Connection Oriented (SCO) BNC/T‐Connector Optical Connectors Implementation Of LAN Using Wireless Technology CDDI (Cable Distributed Data Interface) Transmission System – • sco is used for real time data such as sound. It is used where fast delivery is preferred over accurate delivery. What Is An • In an sco link, a physical link is created between the Transceiver? master and slave by reserving specific slots at regular intervals. What Is Ethernet? • Damaged packet; are not retransmitted over sco What Is Transmission links. Baseband? • A slave can have three sco links with the master and What Is Broadband can send data at 64 Kbps. ISDN? Logical Link, Control Adaptation Protocol What Is Parity Bit? Layer (L2CAP) What Is Half Duplex? • The logical unit link control adaptation protocol is equivalent to logical link control sublayer of LAN. What Is AppleTalk? • The ACL link uses L2CAP for data exchange but sco channel does not use it. Asynchronous? • The various function of L2CAP is: What Is 1. Segmentation and reassembly • L2CAP receives the packets of upto 64 KB from upper layers and divides them into frames for transmission. • It adds extra information to define the location of frame in the original packet. http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth Transmission System? Transceiver ‐ What Is 100VG‐Any LAN What Is What Is Bit Error? Communications? What Is Transfer Rate? What Is EtherTalk? What Is Ethernet Frame? ISO Architecture 6/8 4/9/2017 Bluetooth ­ What is Bluetooth? • The L2CAP reassembles the frame into packets again at the destination. What Is The 2. Multiplexing Wi‐Fi Vs. Mobile • L2CAP performs multiplexing at sender side and demultiplexing at receiver side. Broadband • At the sender site, it accepts data from one of the Layer upper layer protocols frames them and deliver them What Is IEEE 802.11n? to the Baseband layer. What Is Network • At the receiver site, it accepts a frame from the baseband layer, extracts the data, and delivers them to the appropriate protocol1ayer. Transmission? 3. Quality of Service (QOS) Installation & • L2CAP handles quality of service requirements, both when links are established and during normal operation. • It also enables the devices to negotiate the maximum payload size during connection establishment. Bluetooth Frame Format The various fields of blue tooth frame format are: Difference Between Functions Of The MAC How To Set Up A Wireless Router Configuration What Is IEEE 802.11e? What Is WiMAX (Worldwide Interoperability For Microwave Access)? Features Of The Package Level Or Network Layer Applications Of Wifi What Is 802.15 (WPAN) ? How To Networking Your Devices Cable Networks (CATV) The Digitization Of Signals Infrared And Laser Transmission Ethernet Networks At 10 Mbit/S 1. Access Code: It is 72 bit field that contains Ethernet Passive synchronization bits. It identifies the master. Optical Network 2. Header: This is 54­bit field. It contain 18 bit pattern that is repeated for 3 time. (EPON) The header field contains following subfields: Network http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth Passive Optical 7/8 4/9/2017 Bluetooth ­ What is Bluetooth? (i) Address: This 3 bit field can define upto seven slaves (1 to 7). If the address is zero, it is used for broadcast communication from primary to all secondaries. What Is The (ii)Type: This 4 bit field identifies the type of data coming from upper layers. Communications? Difference Between Computer Networks And Network (iii) F: This flow bit is used for flow control. When set to 1, it means the device is unable to receive more frames. (iv) A: This bit is used for acknowledgement. (v) S: This bit contains a sequence number of the frame to detect retransmission. As stop and wait protocol is used, one bit is sufficient. (vi) Checksum: This 8 bit field contains checksum to detect errors in header. 3. Data: This field can be 0 to 2744 bits long. It contains data or control information coming from upper layers Connect Us On FaceBook and Google+ Dinesh Thakur is a Technology Columinist and founder of Computer Notes and Technology Motivation. Mail Me At (@Computer Notes) http://ecomputernotes.com/computernetworkingnotes/communication­networks/bluetooth 8/8