Lecture04 communication in distributed systems

... composed of trustworthy peers In this paper, we consider how to improve the trustworthiness of a group by including trustworthy peers in the group If the group we call a decision making committee ... schedule making or decision making in a group, only small number of peers may be required to be involved But in either case, by selecting group members according to the...

Ngày tải lên: 21/06/2014, 06:20

... challenges in distributed systems and provide background of complex query processing and failure recovery in distributed systems Finally, we outline the objectives of this thesis and provide an outline ... computation results In this thesis, we mainly focus on two challenging issues in distributed systems: complex query processing and fault tolerance 1...

Ngày tải lên: 08/09/2015, 15:18

... composite events [48], we suggest to think of composite events having a start and endpoint thus associating an interval with the composite event instead of using the timestamp of the terminating event ... Sun Microsystems, http://java.sun.com/beans/ [24] H Kopetz Sparse Time versus Dense Time in Distributed Real-Time Systems In Proceedings of the 12th Intl Conf on Distributed Co...

Ngày tải lên: 07/03/2014, 17:20

... Signature 16 ADVANCES IN NETWORK AND DISTR SYSTEMS SECURITY INTRODUCTION In an ever-improving technological world, e-commerce is becoming an increasingly popular a tool for communication, business and ... securing computer networks, including both hardware- and software-based techniques to promote dissemination of research results in the field of network security in real-...

Ngày tải lên: 25/03/2014, 11:06

... MANAGEMENT OF FIBER PHYSICAL EFFECTS IN HIGH- SPEED OPTICAL COMMUNICATION AND SENSOR SYSTEMS YANG JING (B Eng., Xi’an Jiaotong University, China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF ... in both optical transmission and sensor systems In this chapter, the physical effects of optical fibers are introduced in section 1.1 The limitation...

Ngày tải lên: 11/09/2015, 10:01

... lower bandwidth consumption and less access latency In [55], a method of combining unicasting, patching, staggered broadcasting, and streambundling broadcasting was proposed to deliver videos of ... partitioning”, and “video partitioning” Media segmentation in temporal domains and spatial domains Segmenting/partitioning media streams can be made in the temporal domains or i...

Ngày tải lên: 16/09/2015, 08:30

... insights on designing object allocation and replication strategies for DDBSs In conclusion, our research contribution lies in designing adaptive object allocation and replication algorithms and ... Environments In this chapter, we address the object allocation and replication issues of OMP in DDBSs in the application domain of SCEs Designing an inte...

Ngày tải lên: 16/09/2015, 17:11

... Logics, Controller Synthesis 17 2.1 Automata on Infinite Words and Infinite Trees 17 2.2 Logics over Infinite Words and Infinite Trees 21 2.3 Controller Synthesis 25 Chapter Distributed Controller Synthesis ... contributions on controller synthesis in distributed, real- time and hybrid settings In the last section, we outline the organization of subsequent c...

Ngày tải lên: 30/09/2015, 05:46

... modify a page of data at a time An attempt by a reader to write previously read data causes a memory fault which converts a reader into a writer and invalidates all other page caches A subsequent attempt ... when it initiates a cache replacement A data manager may restrict the use of cached data by issuing a pager_data_lock request, specifying the types of ac...

Ngày tải lên: 12/09/2012, 15:05

... Distributed systems    Virtually all large computer-based systems are now distributed systems Information processing is distributed over several computers ... Sommerville 2004 Software Engineering, 7th edition Chapter 12 Slide Distributed systems architectures  Client-server architectures •  Distributed services which are called on by clients Servers that ... Engine...

Ngày tải lên: 14/09/2012, 11:27

... Switching sequence in six sector Khoa Điện-Điện Tử 2002 – 2007 Control single-phase inverter by Space Vector Modulation CHƯƠNG TRÌNH Đ ÀO TẠO KỸ SƯ CHẤT LƯỢNG CAO VIỆT-PHÁP PFIEV • Single-phase inverter ... KỸ SƯ CHẤT LƯỢNG CAO VIỆT-PHÁP PFIEV • Input: frequency and amplitude of single-phase inverter singleoutput • Control: supply power to load or stop © Minister of Natural Resources Cana...

Ngày tải lên: 26/04/2013, 08:26

Ngày tải lên: 04/09/2013, 19:43

... water management decision makers in evaluating water policies and developing sustainable water resource management plans WEAP operates following the basic principles of water balance accounting ... regarding supply-demand water allocation interactions and will become invaluable in the assessment of the impacts on water operating rule modifications in order to set...

Ngày tải lên: 05/09/2013, 14:58

... on the integrity of the system In this case, the attacker not Security Issues in Wireless Systems † † † † † † † † 329 only gains access to the network, but tampers with data such as changing the ... inserting a record in a file Interception This is an attack on the confidentiality of the network such as wiretapping or eavesdropping to capture data in a network Eavesdropping is e...

Ngày tải lên: 29/09/2013, 21:20