... Bách Khoa TPHCM Wireless Sensor Networks Bộ Môn Viễn Thông Kỹ Thuật,Giao Thức và Ứng Dụng 42 Chương 5 GIAO THỨC ðIỀU KHIỂN TRUY CẬP TRONG MẠNG WIRELESS SENSOR NETWORKS Mạng ... TPHCM Wireless Sensor Networks Bộ Môn Viễn Thông Kỹ Thuật,Giao Thức và Ứng Dụng 41 Hình 4.8: Mô hình giao thức ZigBee. Ưu ñiểm của ZigBee/IEEE802 .15. 4 với Blue...
Ngày tải lên: 21/01/2014, 04:20
... wireless sensor networks, ” in Proc. ACM WSNA, Atlanta, GA, Sep. 2002, pp. 12–21. [8] E. Shih et al., “Physical layer driven protocol and algorithm design for energy-efficient wireless sensor networks, ” ... protocol for wireless sensor networks, ” in Proc. ACM WSNA, Atlanta, GA, Sep. 2002, pp. 1–11. [13] J. Zhao and R. Govindan, “Understanding packet delivery performance in den...
Ngày tải lên: 16/03/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 2 doc
... subcarrier by an equal amount and is independent of the particular subchannel concerned, k. Recent Advances in Wireless Communications and Networks 38 using carrier aggregation, a peak data ... received baseband-equivalent signal can, thus, be written as Recent Advances in Wireless Communications and Networks 44 , , , ...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 3 doc
... transmitted by multiplying with antenna-specific weighting Recent Advances in Wireless Communications and Networks 78 0 5 10 15 20 25 30 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 E b /N 0 [dB] BER N R =1 N R =2 ... to invent complex STBCs since complex constellation schemes Recent Advances in Wireless Communications and Networks 76 coefficients m v , 1, , T mn = … . Th...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 6 docx
... shown below. 146 Recent Advances in Wireless Communications and Networks Primary User Detection in Multi-Antenna Cognitive Radio 15 −20 15 −10 −5 0 5 10 15 20 10 −2 10 −1 10 0 10 1 10 2 10 3 Samples ... likelihoods of individual observations, therefore 154 Recent Advances in Wireless Communications and Networks 18 Will-be-set-by-IN-TECH −20 15 −10 −5 10 0 10 1 10 2 10 3 SNR Av...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 11 docx
... al., 2007). 15. Existing protocol classifications for wireless sensor networks A careful attention is needed while selecting or proposing a new routing protocols for wireless sensor networks because ... Resource constraint nature of wireless sensor networks Wireless Sensor Networks (WSNs) employ a large number of miniature disposable autonomous devices known as sen...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 14 docx
... Recent advances in wireless communication, as well as embedded computing, have opened many new exciting opportunities for wireless sensor networks. Miniature and low-cost wireless sensors are expected ... battery Wireless Sensor Networks in Smart Structural Technologies 407 Sensor Signal Digitization 4-channel 16-bit Analog-to-Digital Converter ADS8341 Computation...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 15 ppt
... Sensor Sensor Sensor Sensor Sensor Controller Control device Control device Control device Control device Control device Centralized Cabled Control Sensor Sensor Sensor Sensor Sensor Controller ... polymers Wireless Sensor Networks in Smart Structural Technologies 419 0 5 10 15 0 2 4 FFT Magnitude Wired #6 0 5 10 15 0 2 4 Frequency (Hz) Wired #12 0 5 10...
Ngày tải lên: 19/06/2014, 19:20
WIRELESS SENSOR NETWORKS
... WIRELESS SENSOR NETWORKS Kỹ Thuật, Giao Thức và Ứng Dụng GVHD: Thầy VƯƠNG PHÁT SVTH : ðỖ DUY TÂN Tháng 8/2009 ðại Học Bách Khoa TPHCM Wireless Sensor Networks Bộ ... Học Bách Khoa TPHCM Wireless Sensor Networks Bộ Môn Viễn Thông Kỹ Thuật,Giao Thức và Ứng Dụng 4 Chương 5: GIAO THỨC ðIỀU KHIỂN TRUY CẬP TRONG MẠNG WIRELESS SENSOR NETWOR...
Ngày tải lên: 25/04/2013, 19:19
C-MAC: Model-driven Concurrent Medium AccessControl for Wireless Sensor Networks
... protocol for duty-cycled wireless sensor networks. In SenSys, 2006. [4] O. Chipara, C. Lu, and J. Stankovic. Dynamic conflict-free query scheduling for wireless sensor networks. In ICNP, 2006. [5] ... access for wireless sensor networks. In SenSys, 2004. [13] V. Rajendran, K. Obraczka, and J. Garcia-Luna-Aceves. Energy-efficient, collision-free medium access control for wireless...
Ngày tải lên: 01/09/2013, 15:23