wireless personal area networks ppt

... Wireless Networks Lecture 39 Bluetooth /Wireless Personal Area Networks (WPAN) Dr Ghalib A Shah Outlines          Bluetooth ... Issues What is Bluetooth?  “Bluetooth wireless technology is ► ► ► ► an open specification for a low-cost, low-power, short-range radio technology for ad-hoc wireless communication of voice and ... voice and data anywhere in the world.” Ultimate Headset Cordless Computer Bluetooth Application Areas  Data and voice access points ► Real-time voice and data transmissions  Cable replacement

Ngày tải lên: 05/07/2022, 13:26

... Wireless Networks Lecture 40 High Rate Wireless Personal Area Networks (WPAN) Dr Ghalib A Shah Outlines      IP Over Bluetooth ... becomes the parent piconet ► The child piconet functionality is useful for either extending the area of coverage of the piconet or shifting some computational or memory requirements to another

Ngày tải lên: 05/07/2022, 13:26

... Heile R F Paving the Way for Personal Area Network Standards: an Overview of the IEEE P802.15 Working Group for Wireless Personal Area Networks, IEEE Personal Communications,... phone ... 11 Personal Area Networks (PANs) 11.1 Introduction to PAN Technology and Applications 11.1.1 Historical Overview The concept of a Personal Area Network (PAN) differs from ... asynchronous manner Typical examples of A-nodes are mobile personal computers and Personal Digital Assistants (PDAs) Personal Area Networks (PANs) 317 † Combined asynchronous and isochronous

Ngày tải lên: 29/09/2013, 21:20

... 9 Wireless Local Area Networks 9.1 Introduction The growth of Wireless Local Area Network (WLANs) commenced in the mid-1980s and was triggered ... other wireless technologies, in order to offer support for mobile computing applications, of perceived performance equal to those of wired communication networks Wireless Local Area Networks ... Summary In this chapter we cover the area of Wireless Local Area Networks by focusing on a number of issues: † WLAN topologies The two types of wireless LAN topologies used today are

Ngày tải lên: 29/09/2013, 21:20

... and D Riboni, “Service discovery and composition in body area networks, ” in Proceedings of the 3rd International Conference on Body Area Networks, 2008 P Zappi, C Lombriser, E Farella, D Roggen, ... Rothermel, “TinyCubus: a flexible and adaptive framework for sensor networks, ” in Proceedings of the 2nd European Workshop onWireless Sensor Networks (EWSN ’05), pp 278–289, February 2005 [24] C C Han, ... June 2005 [25] S Dulman and P Havinga, “Architectures for wireless sensor networks, ” in Proceedings of the Intelligent Sensors, Sensor Networks and Information Processing Conference (ISSNIP ’05),

Ngày tải lên: 21/06/2014, 07:20

... coverage, wireless networks can in general be divided into five different categories, including wireless regional area networks (WRANs), wireless wide area networks (WWANs), wireless metropolitan area networks ... networks (WWANs), wireless metropolitan area networks (WMANs), wireless local area networks (WLANs), and wireless personal area networks (WPANs). The IEEE standards association establishes five ... Introduction A wireless network is a type of computer networks that utilizes wireless communication technologies to maintain connectivity and exchange messages between stations over wireless media,

Ngày tải lên: 21/06/2014, 17:20

... Applications of wearable and implanted wireless sensor devices are hot research area. A specialized field called the body area networks (BAN) has emerged to support this area. Managing and controlling ... efficient MAC protocol for wireless body area networks Moshaddique Al Ameen 1 , Niamat Ullah 1 , M Sanaullah Chowdhury 1 , S M Riazul Islam 1 and Kyungsup Kwak* 1 1 UWB Wireless Communications ... versions will be made available soon. A power efficient MAC protocol for wireless body area networks EURASIP Journal on Wireless Communications and Networking 2012, 2012:33 doi:10.1186/1687-1499-2012-33

Ngày tải lên: 21/06/2014, 17:20

... Wireless Underground Sensor Networks (WUSNs) constitute one of the promising application areas of the recently developed wireless sensor networking techniques. WUSN is a specialized kind of Wireless ... Journal on Wireless Communications and Networking Volume 2010, Article ID 620307, 14 pages doi:10.1155/2010/620307 Research Article Development of a Testbed for Wireless Underg round Sensor Networks ... also be applied to generic WSN testbeds. 1. Introduction Wireless Underground Sensor Networks (WUSNs) are a natural extension of the wireless sensor network (WSN) phenomenon to the underground

Ngày tải lên: 21/06/2014, 23:20

... Throughput-Based MAC Layer Handoff in IEEE 802.11 Wireless Local Area Networks SungHoon Seo,1 JooSeok Song,1 Haitao Wu,2 and Yongguang Zhang2 Department Wireless of Computer Science, Yonsei University, Seoul ... Recommended by Naveen Chilamkurti We propose a MAC layer handoff mechanism for IEEE 802.11 Wireless Local Area Networks (WLAN) to give benefit to bandwidthgreedy applications at STAs The proposed mechanism ... As wireless networking grows in popularity, various radio access technologies have been developed to provide better environment for user data service Most of all, IEEE 802.11 Wireless Local Area

Ngày tải lên: 21/06/2014, 23:20

... of wireless mobile devices, such as notebook PC, PDA, and smart phone, has greatly promoted multimedia applications over wireless ad hoc networks. Transferring real-time video streams over a wireless ... is becoming an important research area of how to discard packets intelligently on IN for improving the quality of video streams over multi-hop wireless ad hoc networks. Previous works on improving ... early packet discards (I-EPD) for real-time video streaming over a multihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams

Ngày tải lên: 21/06/2014, 23:20

... 104 xi LIST OF ABBREVIATIONS WSN Wireless Sensor Networks WBAN Wireless Body Area Networks WPAN Wireless Personal Area Network SN Sensor Node PS Personal Server OOK ON OFF Keying ... AWARE RF TRANSCEIVER FOR WIRELESS BODY AREA NETWORKS (WBAN) M.KUMARASAMY RAJA NATIONAL UNIVERSITY OF SINGAPORE 2011 ENERGY AWARE RF TRANSCEIVER FOR WIRELESS BODY AREA NETWORKS (WBAN) M.KUMARASAMY ... 1 INTRODUCTION TO WBAN TRANSCEIVERS 1.1 Background Wireless Body Area Networks (WBAN) belongs to the family of Wireless Sensor Networks (WSN) with specific attention to health care

Ngày tải lên: 09/09/2015, 18:49

... Standard for Local and metropolitan area networks Part 15.6: Wireless Body Area Networks, ” IEEE Std 802.15.6-2012, pp 1-271, 2012 [13] J Wang and Q Wang, Body Area Communications: Channel Modeling, ... “a Low Energy Wireless Body Area Network Transceiver with scalable Double FSK Modulation,” Ph.D dissertation, KAIST, Korea, 2012 [6] Wireless Body Area Network: Seminar Report and PPT, [Online] ... double-FSK sensor node transceiver for wireless body -area network,” Solid-State Circuits, IEEE Journal, vol 47, pp 2678-2692, 2012 [17] T G Zimmerman, ? ?Personal area networks: near-field intrabody communication,”

Ngày tải lên: 28/11/2015, 14:02

... Wireless Communications and Networking Volume 2011, Article ID 921623, 15 pages doi:10.1155/2011/921623 Research Article Interference-Aware Radio Resource Management for Local Area Wireless Networks ... intensive local area networks, emerging and next generation wireless systems should favor such signaling-intensive cooperation schemes. The following observations support our view. (i) Local area network ... powercontrolled wireless networks, ” IEEE Transactions on Wireless Communications, vol 9, no 2, pp 833–843, 2010 [6] C U Saraydar, N B Mandayam, and D J Goodman, “Efficient power control via pricing in wireless.

Ngày tải lên: 21/06/2014, 05:20

... The Case for Virtual Local Area Networks (VLANs) 1-800-COURSES www.globalknowledge.com Expert Reference Series of White Papers Introduction In ... Coaxial Cable-Based Ethernet To simplify the installation of Ethernet networks, a change was made to the network topology . Networks were converted from coaxial cable to twisted pair cabling by ... hub , networks became more crowded. A solution to the problem was necessary. Figur e 2. Hub-Based Twisted Pair Ethernet Ted Rohling, Global Knowledge Instructor, CISSP The Case for Virtual Local Area Networks

Ngày tải lên: 17/01/2014, 06:20

... Advances in Wireless Communications and Networks Wolniansky,... the zth stream are mapped onto a sequence sz of symbols drawn from an 98 4 Recent Advances in Wireless Communications ... transmitted vector s and the equalized output † W r , as follows: Recent Advances in Wireless Communications and Networks 82 { } †2 ar g min ( ) MMSE E=− W W sWr (67) The optimal MMSE equalizer ... is in sequence from the last transmit antenna to the first Recent Advances in Wireless Communications and Networks 84 transmit antenna. As compared with the ZF-based and MMSE-based V-BLAST

Ngày tải lên: 19/06/2014, 19:20

... vertical handover techniques in heterogeneous wireless networks, by introducing a hybrid scheme for connectivity support 6 . Different wireless networks exhibit quite different data rate, data ... (2010) Network Integration in 3G and 4G Wireless Networks, Proceedings of 19th International Conference on Computer Communications and Networks (ICCCN), pp.1-8, August 2010 Balasubramaniam ... multinetwork environments, IEEE Wireless Communications, Vol 11, Issue 3, pp 8–15, June, 2004 244 Recent Advances in Wireless Communications and Networks Pollini G P ( 199 6)

Ngày tải lên: 19/06/2014, 19:20

... 87m. Wireless Sensor Networks in Smart Structural Technologies 413 3. Wireless structural health monitoring The prototype wireless unit is first investigated for applications in wireless ... placement of the 13 wireless sensors, takes about an hour. The MaxStream 9XCite wireless transceiver operating at 900MHz is integrated with each wireless sensing unit. Wireless Sensor Networks in ... within the specified time interval S3 Ci : Wireless control unit (with one wireless transceiver included) Si : Wireless sensing unit (with one wireless. .. Theory and Implementation PhD

Ngày tải lên: 19/06/2014, 19:20

... other types of networks. Keywords: Intercell interference power, Statistical modeling, Wire less networks, Rayleigh fading, lognormal shadowing I Introduction In the emerging wireless communication ... the intercell interference power in the downlink of wireless cellular networks EURASIP Journal on Wireless Communications ... efficiency [18-20]. The analysis of interference in dense asynchronous networks, such as ad hoc net- works, is also an active research area, for which a deep review of the recent developments can be

Ngày tải lên: 21/06/2014, 00:20

... using SIR ã Then they shift to FIR speed Wireless Communications Low Rate Wireless Personal Area Networks 2 Objectives ã Describe a wireless personal area network (WPAN) ã List the different ... work ã Describe the security features of low-rate WPAN technology 3 What is a WPAN? ã Wireless personal area network (WPAN) Group of technologies that are designed for short- range communications – Eliminates ... standard – IrDA devices cannot send and receive at the same time IrDA is easy to use ã Bluetooth is a wireless technology that uses short- range radio frequency (RF) transmissions – Supported by over...

Ngày tải lên: 13/09/2012, 10:52

... Functionality (continued) Wireless Communications Chapter 6 High Rate Wireless Personal Area Networks Wireless# Guide to Wireless Communications 36 Competition Among WPAN Standards ã IEEE 802.15.3 ... and storage Wireless# Guide to Wireless Communications 32 How UWB Works (continued) Wireless# Guide to Wireless Communications 18 Additional MAC Layer Functionality (continued) Wireless Communications Chapter ... Wireless# Guide to Wireless Communications 22 Additional MAC Layer Functionality (continued) Wireless# Guide to Wireless Communications 24 Additional MAC Layer Functionality (continued) Wireless# ...

Ngày tải lên: 13/09/2012, 10:52