This project develops network-based optimization methods for solving problems arising in complex system analysis and wireless networking applications. The study of complex systems is of utmost importance for a number of diverse areas of science, engineering and society, including biochemistry, social sciences, epidemiology, transportation, and telecommunications. The project makes contributions...

With mobile computers and wireless networking hardware becoming widely and increasingly cheaply available, a large body of effort has over the past years gone into incorporating mobility support into the existing, prevailingly wired Internet. Today’s wireless networks, however, are either restricted to some sort of immobile infrastructure (e.g., UMTS), or to direct, single-hop connections (e.g....

In this paper we propose a connection balanced routing in mobile ad-hoc networks (MANETs) using backbone update messages. Virtual-Backbone (VB) construction is very familiar, to overcome broadcast storm problem in wireless networks. In real time, during the movement of nodes in MANET, more number of nodes added in a particular node (say a VB node), it leads poor quality of service in multi-hop ...

Wireless technology such as IEEE 802.11b allows a set of devices to communicate with each other in a peer-to-peer manner by dynamically forming mobile ad hoc networks. Routing in such networks is challenging due to node mobility, low power, constrained bandwidth and limited radio range. Most of the previous works are based on strategies that combine flooding and caching to discover routes proac...

We propose a stable backbone tree construction algorithm using multi-hop clusters for wireless sensor networks (WSNs). The hierarchical cluster structure has advantages in data fusion and aggregation. Energy consumption can be decreased by managing nodes with cluster heads. Backbone nodes, which are responsible for performing and managing multi-hop communication, can reduce the communication ov...

The proliferation of mobile devices over the past several years has created a whole new world of the Internet. The deluge of applications for every aspect of today’s life has raised the expectation of having ubiquitous connectivity, with a desired Quality of Service (QoS). However, it has violated the original Internet design which was not intended to support mobility, neither better than best-...

Passive optical networks (PONs) represent a promising solution for modern access telecommunication networks. These networks are able to meet the increasing demands on transmission rate for demanding multimedia services, while they can offer typical shared transmission speed of 1.25 or 2.5 Gbps. The major role in deploying optical distribution networks ODNs plays the maximum attenuable loss, whi...

Multiprotocol label switching (MPLS) is a versatile solution to address the problems faced by present-day networks—speed, scalability, quality-of-service (QoS) management, and traffic engineering. MPLS has emerged as an elegant solution to meet the bandwidth-management and service requirements for nextgeneration Internet protocol (IP)–based backbone networks. MPLS addresses issues related to sc...

where it goes to the Internet (Fig. 13.1). Mesh networks decrease the cost of running the access points, as all access points in the same area share a single broadband connection. Current mesh networks use 802.11a technology to interconnect the mesh backbone [3,4]. However, 802.11a technology is a decade old and was not designed for mesh networks. In particular, 802.11 Medium Access Control (MA...

The hybrid (Optical-Wireless broadband) network with the backbone as optical networks, Passive Optical Networks (PON), and wireless access networks have been proposed to provide good Quality of service (QoS). A Dynamic network solution for adopting both wired and wireless networking methods need to be updated. A Multicast based network coding technique is introduced for improving total network ...