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    WPAN

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    Surojit Dev
    The document provides an overview of wireless personal area networks and various wireless technologies used in WPANs such as Bluetooth, WiFi, infrared, ZigBee and others. It compares these technologies and discusses their specifications, topologies and applications.

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    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd

    WPAN

    Uploaded by

    Surojit Dev
    52 views18 pages
    The document provides an overview of wireless personal area networks and various wireless technologies used in WPANs such as Bluetooth, WiFi, infrared, ZigBee and others. It compares these technologies and discusses their specifications, topologies and applications.

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    © Attribution Non-Commercial (BY-NC)

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    PPT, PDF, TXT or read online from Scribd

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    The document provides an overview of wireless personal area networks and various wireless technologies used in WPANs such as Bluetooth, WiFi, infrared, ZigBee and others. It compares these technologies and discusses their specifications, topologies and applications.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    52 views18 pages

    WPAN

    Uploaded by

    Surojit Dev
    The document provides an overview of wireless personal area networks and various wireless technologies used in WPANs such as Bluetooth, WiFi, infrared, ZigBee and others. It compares these technologies and discusses their specifications, topologies and applications.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PPT, PDF, TXT or read online from Scribd
    Download as ppt, pdf, or txt
    You are on page 1of 18

    Welcome to my presentation

    Wireless Personal Area Network

    WPAN
    Presented by Surojit Kumar Dev

    Outline
    Introduction Goals Wireless technologies Bluetooth Networking Capability Brief WiFi (wireless fidelity) Infrared Wireless USB Z-Wave ZigBee Comparison of digital RF systems Topology Conclusions

    Introduction
    WPAN can be made with wireless network technologies for communication among the personal devices themselves. Also connecting to a higher level network and the Internet (an uplink). WPAN can be made such as IrDA, Bluetooth, Wireless USB, Z-Wave and ZigBee These are Short Range Low Power Low Cost Small Networks Communication within a persons operating space

    Goals
    Data/Voice Access Points
    GSM BT BT

    BT

    Cable Bluetooth Drivers Replacement Low cost implementation Small implementation size Low power consumption Robust, high quality data & voice transfer Open global standard

    Ad Hoc Networking

    Wireless Link Between All Mobile Devices

    Wireless technologies
    Wireless telecommunications, is the transfer of information between two or more points that are physically not connected. Distances can be short, as a few meters as in television remote control; or long ranging from thousands to millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of wireless technology include GPS units, Garage door openers or garage doors, wireless computer mice, keyboards and Headset (telephone/computer), headphones, radio receivers, satellite television, broadcast television and cordless telephones.

    Bluetooth
    Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal are networks (PANs) with high levels of security. Using short wavelength radio transmissions in the ISM band from 2400-2480 MHz Created by telecoms vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronizationBluetooth Uses short-range radio waves over distances up to approximately 10 meters

    Bluetooth Chip Architecture

    Networking Capability Brief


    Up to 8 devices can communicate in a small network called a piconet 10 piconets can coexist in the same coverage range With insignificant degradation Data Devices (DEV) establish peer-to-peer communication Dynamic topology Mobile devices often join and leave the piconet Short connection times High spatial capacity Multiple Power Management modes Secure Network

    WiFi (wireless fidelity)


    WiFi uses radio waves for connection over distances up to around 91 meters. Wi-Fi is a mechanism for wirelessly connecting electronic devices. A device enabled with Wi-Fi, such as a personal computer, video game console, smartphone, or digital audio player, can connect to the Internet via a wireless network access point. Multiple overlapping access points can cover large areas. Wi-Fi is used by over 700 million people. There are over four million hotspots (places with Wi-Fi Internet connectivity) around the world, and about 800 million new Wi-Fi devices are sold every year

    Infrared
    Infrared communications (IR) or IrDA (Infrared Data Association) uses infrared light. It has a frequency below the human eye's sensitivity. It is used in cell phones and TV remote controls. Typical devices include printers, keyboards, and other serial data interfaces.

    Wireless USB
    Wireless USB is a short-range, high-bandwidth wireless radio communication protocol created by the Wireless USB Promoter Group. Wireless USB is sometimes abbreviated as "WUSB", Wireless USB is based on the WiMedia Alliance's UltraWideBand (UWB) common radio platform, It is capable of sending 480 Mbit/s at distances up to 3 meters and 110 Mbit/s at up to 10 meters. It was designed to operate in the 3.1 to 10.6 GHz frequency range,

    Z-Wave
    Z-Wave is a proprietary wireless communications protocol designed for home automation, specifically to remote control applications in residential and light commercial environments. The technology uses a low-power RF radio embedded or retrofitted into home electronics devices and systems, such as lighting, home access control, entertainment systems and household appliances.

    ZigBee
    Low-cost, low-power features for multi-year operation on standard batteries Low data throughput: 250 Kb/s Star and peer-to-peer network topologies Protocol stack: 32KB Number of nodes: 264 Range: 1 100 m

    Comparison of digital RF systems


    Specification Wireless USB Specification Rev. 1.1 Bluetooth 4.0 (proposed) Wi-Fi (IEEE 802.11n) Bluetooth 2.1 + EDR

    Frequency band

    3.1 GHz10.6 GHz


    53 - 480 Mbit/s 3 - 10 m

    UWBUWB, ultra-wide band

    2.4 GHz/5 GHz 2.4 GHz

    Bandwidth Distance

    53 - 480 Mbit/s Max. 600 Mbit/s unknown distance 100 m

    Max. 3 Mbit/s 1 100 m, depending on output

    Modulation

    OFDM

    OFDM

    DSSS, DBPSK, GFSK DQPSK, CCK, OFDM


    September 2009 July 2007

    Standardization

    September 2010

    pre-standard

    Topology

    Conclusions
    The objective is to facilitate seamless operation among home or business devices and systems. Every device in a WPAN will be able to plug in to any other device in the same WPAN, provided they are within physical range of one another. In addition, WPANs worldwide will be interconnected.

    Recommendations
    Contributions Proposed, implemented, and tested a mechanism for time synchronization in star-based wireless sensor network (WSN). Future work Support other network topologies Increase resolution: stabilize DCO (Digitally controlled oscillator) generated clock (can be done in SW)

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