... Trans. Inf. Theory 51 (10), 356 4– 357 5 (20 05) 13. J Li, G AlRegib, Distributed estimation in energy-constr ain ed wireless sensor networks. IEEE Trans. Signal Process. 57 (10), 3746–3 758 (2009) 14. J-J ... algorithm (57 ) as a function of p(y i |θ) and its partial derivatives. After taking the first- and second-order partial derivatives of p(y i |θ) and comparing them with (54 ), (...
Ngày tải lên: 18/06/2014, 22:20
... Transactions on Information Theory 45( 5): 1 456 –1467. Telatar, E. (1999). Capacity of Multi-antenna Gaussian Channels, European Transactions on Telecommunications 10(6): 58 5 59 5. van Zelst, A. & Hammerschmidt, ... Will-be-set-by-IN-TECH 0 5 10 15 20 10 −6 10 −4 10 −2 10 0 E b /N 0 (dB) BER Spatial Division Multiplex 0 5 10 15 20 10 −6 10 −4 10 −2 10 0 Cyclic Delay Diversity E...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 7 pot
... Coordinating multiple antenna cellular networks to achieve enormous spectral efficiency, in IEEE Proceedings on Communications, Vol. 153 , No. 4, pp. 54 8 -55 5, August 2006. FUTON, European ICT ... and cellular networks. 2.1 Architecture of integrated WLAN and 3G cellular networks Driven by the anywhere and anytime mobile service concept, it is expected that 4G wireless networ...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 10 pot
... Advances in Wireless Communications and Networks On the Use of SCTP in Wireless Networks 259 1 int main() 2 { 3 int listenSock, connSock, ret, msglen; 4 struct sockaddr_in servaddr; 5 struct ... near future, wireless access networks will be composed of diverse wireless medias. To exploit wireless media diversity in expected access networks, some bandwidth-aggregati...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 13 pot
... no.3, pp.3 65- 369, June 1968. Recent Advances in Wireless Communications and Networks 358 Fig. 9. GoS vs. Total System’s Bandwidth (proposed DCAC vs. Capacity-based (CB) CAC) 5. Conclusion ... resulting web content would be returned to the client. Recent Advances in Wireless Communications and Networks 350 this point we must clarify that this simplification takes...
Ngày tải lên: 19/06/2014, 19:20
Recent Advances in Wireless Communications and Networks Part 16 pot
... can be changed, and the increased static Recent Advances in Wireless Communications and Networks 452 kilowatt-hour is 5 - 7 .5 US cents. This value is comparable to that for fossil fuel ... at a frequency of 2. 45 GHz was 1/4 of the wavelength λ (122.4 mm), or 122.4/4 = 30.6 mm, and Recent Advances in Wireless Communications and Networks 440 Fig. 5. Structure...
Ngày tải lên: 19/06/2014, 19:20
WIRELESS SENSOR NETWORKS
... gian: 61 5. 4 .5 Lắng nghe thích ứng: 62 5. 4.6 ðiều khiển truy cập và trao ñổi dữ liệu: 62 5. 4.7 Chuyển thông ñiệp: 63 5. 5 Chuẩn IEEE 802. 15. 4 LR-WPANs: 64 5. 5.1 Lớp vật lý (PHY): 66 5. 5.2 Lớp ... Protocols: 58 5. 4 Nghiên cứu trường hợp SENSOR- MAC: 59 5. 4.1 Tổng quát: 59 5. 4.2 Lắng nghe và nghỉ theo chu kỳ (Listen and Sleep): 60 5. 4.3 Sự phối hợp và lựa chọn lịch là...
Ngày tải lên: 25/04/2013, 19:19
C-MAC: Model-driven Concurrent Medium AccessControl for Wireless Sensor Networks
... 3031 − 95 − 85 − 75 − 65 55 − 45 Transmission Power Level Index RSS (dBm) 2ft 4ft 8ft 16ft 32ft (b) Corridor 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 − 95 − 85 − 75 − 65 55 − 45 Transmission Power ... RTS 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 − 95 − 85 − 75 − 65 55 − 45 Transmission Power Level Index RSS (dBm) 2ft 4ft 8ft 16ft (a) Office 2 4 6 8 10 12 14 16...
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Tài liệu Wireless Sensor Networks (P2) docx
... 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 Bl...
Ngày tải lên: 21/01/2014, 04:20