This paper addresses the issue of base station user association and resources allocation (BUA-RA) in OFDM-TDMA-based broadband wireless access (BWA) networks under PON-WiMAX integration. With the powerful coordination capability at the optical line terminal (OLT), a key technology of inter-cell collaborative transmission (CT) is incorporated in the integrated network architecture, which is so c...

The paper presents technology of the ten-gigabit-capable Passive Optical Network – XG-PON which in two phases of its development (XG-PON1 and XG-PON2) takes the first step towards the Next-generation Passive Optical Network 1 – NG-PON1. Results of researches and analyses of the development of the fixed broadband optical network are summarized. The focus is on describing the migration process of...

-A new open-source tool chain with malware collection, detection, and analysis is presented, evaluated, and open sourced. It actively collects malware through two channels: web-links and peer-to-peer. Then it detects malware with multiple anti-virus scanners and analyzes their host and network activities on virtual machines. The evaluation shows the differences between the malware collected by ...

Distributed computing applications are increasingly utilizing distributed data sources. However, the unpredictable cost of data access in large-scale computing infrastructures can lead to severe performance bottlenecks. Providing predictability in data access is thus essential to accommodate the large set of newly emerging large-scale, data-intensive computing applications. In this regard, accu...

During transmission of data in a network it is desirable that packet transmission will complete without packet loss and take less time. There are many Major cause of packet loss such as congestion. Because of this there is requirement of some methodology that can reduce the packet loss and return reliable data transmission over the network. In this paper, the proposed work is representing the s...

This paper provides insights on the status of broadband optical access market and technologies in Europe and on the expected trends for the next generation optical access networks. The final target for most operators, cities or any other player is of course FTTH (Fibre To The Home) deployment although we can expect intermediate steps with copper or wireless technologies. Among the two candidate...

Many ad hoc network protocols (e.g., routing, service discovery, etc.) use flooding as the basic mechanism to propagate control messages. In flooding, a node transmits a message to all of its neighbors. The neighbors in turn transmit to their neighbors and so on until the message has been propagated to the entire network. Typically, only a subset of the neighbors is required to forward the mess...

With the current continuously growing bandwidth demand, it is apparent that conventional broadband access solutions will quickly become bottlenecks in terms of bandwidth provision. In this chapter, the authors analyze the present global challenge for extended bandwidth provision in the scope of the fast developing electronic communications sector, creating a fully converged environment. In part...

This paper gives an overview of current work and research conducted on passive optical networks, namely on dynamic bandwidth allocation and providing quality of service guarantees. The main areas of interest for investigating dynamic bandwidth allocation are grant sizing, grant scheduling and optical network unit queue scheduling. Regarding quality of service parameters bandwidth, delay and jit...

It is of great significance to manage and maintain EPON (Ethernet Passive Optical Network) effectively by discovering devices running in EPON network and relationships between devices automatically. After analyzing the characteristics of EPON network and basic principle of topology discovery, a topology discovery scheme is proposed, which is designed and implemented based on WebNMS framework to...