Backup radio placement for optical fault tolerance in hybrid wireless optical broadband access networks
Backup radio placement for optical fault tolerance in hybrid wireless optical broadband access networks
... Backup Radio Placement for Optical Fault Tolerance in Hybrid Wireless -Optical Broadband Access Networks Submitted by TRUONG HUYNH NHAN Department of Electrical & Computer Engineering In partial ... importance of fault- tolerance and especially optical fault- tolerance in WOBAN are discussed in detail Backup Radio placement for Optical Fault- tolerance (BROF) problem is defined Finally, contribution ... pay for a regulated expensive licensed spectrum 1.2 Hybrid Wireless -Optical Broadband Access Network Although PON and Wireless Networks are both promising solutions for broadband access networks, ...
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System Support for Software Fault Tolerance in Highly Available Database Management Systems
... System Support for Software Fault Tolerance in Highly Available Database Management Systems by Mark Paul Sullivan Abstract Today, software errors are the leading cause of outages in fault ... differences in the risk to data in main CHAPTER INTRODUCTION memory and on disk 1.3 Existing Approaches to Software Fault Tolerance Current strategies for reducing the impact of software errors on systems ... concurrent systems programs such as the operating system and database management system make error prevention alone insufficient for achieving high system reliability and availability Since fault prevention...
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Báo cáo hóa học: " Use of Time-Frequency Analysis and Neural Networks for Mode Identification in a Wireless Software-Defined Radio Approach" pptx
... design of mode identification strategies for reconfigurable software-defined radio- based terminal His research interests are in mode identification algorithms for software-defined radio platform in a single ... Van Dyck, and A Soltanian, “Interference of bluetooth and IEEE 802.11: simulation modeling and performance evaluation,” in Proc 4th International ACM Workshop on Modeling, Analysis and Simulation ... fundamental and integrating part of SR and CR because it allows one to support multimode and multiband communications according to SR In general, MI can be blind or assisted [10], and modes can be...
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Báo cáo toán học: " Reconfigurable parasitic antennas for compact mobile terminals in multiuser wireless systems" pot
... the increased training overhead is evident in the system performance 3.3 Receiver beamforming in Rician channels In order to evaluate the potential gains of using ESPAR antennas on mobile terminals ... at the receiving terminal are examined both in opportunistic beamforming and in MIMO broadcast channel MU systems, optimizing correspondingly the SNR or the SINR of the forward link Introduction ... slot, and for time invariant channels within this slot, the user with the highest channel gain is selected Therefore, using ESPAR antennas on mobile terminals would result in the same performance...
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Báo cáo hóa học: " Research Article Distributed and Collaborative Node Mobility Management for Dynamic Coverage Improvement in Hybrid Sensor Networks" doc
... the node mobility of mobile nodes to provide an efficient dynamic coverage of the region of interest after the initial deployment stage Exploiting mobile nodes for continuous coverage in mobile sensor ... maintain an approximately uniform coverage over time Taking these factors into account, in this paper, we propose a new distributed mobility protocol for mobile node navigation in a hybrid sensor ... ideal for hybrid networks consisting of both static and mobile nodes We need to consider the following factors in designing an algorithm for mobile node Figure 1: Hybrid sensor network consisting...
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Báo cáo hóa học: " On Cross-Layer Design for Streaming Video Delivery in Multiuser Wireless Environments" pptx
... Steinbach, and J A Nossek, “Analc ysis of distortion due to packet loss in streaming video transmission over wireless communication links,” in Proceedings of the International Conference on Image ... in uence on system performance therefore has to be abstracted into a form which is meaningful for the other layers involved in the cross-layer optimization (2) Signaling overhead: cross-layer design ... ist Streaming server Cross-layer optimizer Streaming client n io ut r ib Parameter abstraction Radio link layer (MAC + PHY) Figure 1: Streaming video server and mobile clients in a wireless multiuser...
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Báo cáo hóa học: " Capacity Planning for Group-Mobility Users in OFDMA Wireless Networks" pdf
... fluctuating nature of SNR into account when planning for the admission capacity Several different optimization criteria have been used for admission capacity planning, such as the average call blocking ... enough for us to plan the admission capacity in all cases In some cases, the required level is not given and the only information available for planning is the relative marginal utility α In such ... pessimistic planning approach compared to the QoS degradation caused by a more optimistic planning approach Therefore, it stands to reason that while admission capacity planning in the presence of group-mobility...
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Tài liệu Báo cáo khoa học: A DExD⁄ H box RNA helicase is important for K+ deprivation responses and tolerance in Arabidopsis thaliana docx
... but also provides information about how RNA helicase acts as a negative regulator in K+ deprivation signaling pathways in Arabidopsis However, the precise mechanism of the regulation between AtHELPS ... whether DExH box RNA helicases are involved in plant responses to abiotic stresses remain to be addressed In this study, we identified and characterized an Arabidopsis DEVH box RNA helicase named ... homolog, and HEN1, a novel protein, act in microRNA metabolism in Arabidopsis thaliana Curr Biol 12, 1484–1495 26 Inagaki S, Suzuki T, Ohto MA, Urawa H, Horiuchi T, Nakamura K & Morikami A (2006) Arabidopsis...
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báo cáo hóa học: " Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network" docx
... Chen et al.: Cross-layer design for radio resource allocation based on priority scheduling in OFDMA wireless access network EURASIP Journal on Wireless Communications and Networking 2011 2011:28 ... fair scheduling in OFDMA based broadband wireless access systems IEEE Trans Broadcast 49(4), 362–370 (2003) 10 WS Jeon, DG Jeong, Combined connection admission control and packet transmission scheduling ... arranging one traffic burst for the session under scheduling would increase One way to increase the number of subchannels for allocation is to decrease the modulation level For example, in accordance...
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báo cáo hóa học:" Research Article On Optimizing Gateway Placement for Throughput in Wireless Mesh Networks" docx
... than one mesh routers and the number of mesh routers is smaller than that of mesh clients Mesh routers constitute a wireless mesh backbone providing a wireless infrastructure for mesh clients In ... reconstructing the table of non-overlapping interfering groups by adding the potential location into the consideration; (3) computing the sharing efficiency for the potential gateway location; (4) ... Obtaining the optimal sharing efficiecy on gateways 3.2 Sharing Efficiency of Gateways Two gateways interfere with each other if they are within the distance of Int Dhops Int D is defined as Interfering...
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Báo cáo hóa học: " Research Article Exploring Landmark Placement Strategies for Topology-Based Localization in Wireless Sensor Networks" pot
... Cort´ s, and A Brandwajn, e Exploring landmark placement strategies for self localization in wireless sensor networks,” 2006, http://rp.lip6.fr/∼benbadis/landmarks placement/ ... routing performance, avoiding the need of equally distant landmark placement We also notice again that as the number of landmarks increases up to a certain threshold, considerable performance gains ... methods for landmark placement in virtual positioning systems The remainder of this paper is organized as follows In Section 3, we describe existing hop-count positioning systems for sensor networks...
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Báo cáo hóa học: " Optimal and Suboptimal Finger Selection Algorithms for MMSE Rake Receivers in Impulse Radio Ultra-Wideband Systems" pdf
... Poor, and A F Molisch, Optimal and suboptimal linear receivers for time-hopping impulse radio systems,” in Proceedings of the IEEE Conference on Ultra Wideband Systems and Technologies (UWBST ... scheme simply ignores it CONCLUDING REMARKS Optimal and suboptimal finger selection algorithms for MMSE- SRake receivers in an IR-UWB system have been considered Since UWB systems have large numbers ... estimate In this way, the resulting hybrid suboptimal algorithm can get closer to the optimal solution FINGER SELECTION USING GENETIC ALGORITHMS The algorithms in the previous section convert the optimal...
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Báo cáo sinh học: "Latitudinal clines for alcohol dehydrogenase allozymic variation and ethanol tolerance in Indian populations of Drosophila ananassae" docx
... 2% for south Indian populations and from to 4% for north Indian populations of D ananassae The ethanol threshold values were found to vary clinally in the range of 1.2 to 4.0% in the case of ... given in figures and Adult longevity was found to increase in the range of to 2% ethanol in south Indian populations while 1-4% ethanol revealed enhanced longevity in the north Indian populations ... resulted in 4-banded patterns in F individuals, and 1:2:1 ratio of segregating 2-banded and 4-banded patterns in the F progeny Thus, Adh electrophoretic data of the parents and progeny of genetic...
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Báo cáo sinh học: "Selection for acrolein tolerance in Drosophila melanogaster" docx
... conditions Of interest, is the tendency for inversions to be eliminated in the selected lines In fact, all inversions were lost in R24, although in RR17 only 2RNS and 3RC remained in the last selection ... the greatest acrolein tolerance There are other facts that support this interpretation In another population, selected for acrolein tolerance, an increase of body size was also obtained (Comendador, ... R24, are shown in Table I Figure displays the variation of acrolein concentration used in each selection generation Since the acrolein concentration was increased only if, in the former generation...
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Từ khóa: identification of functional candidate genes for drought tolerance in ricelayering processes for fault tolerance2 selection process for black baffle surfaces in optical systemstesting and logical fault tolerance for parallel programsplanning for fault tolerancetolerance is essential for peace and harmony in any communityNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Thơ nôm tứ tuyệt trào phúng hồ xuân hươngSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXChuong 2 nhận dạng rui roQuản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtHIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ