The dynamics of an ad hoc network are a challenge to protocol design because mobility of nodes leads to unstable routing, and consequently flows encounter fluctuations in resource availability on various paths during the lifetime of a session. This has become serious, especially for those protocols based on single-path reservation, as frequent reservation and restoration of reservation-based fl...

Fast and accurate network traffic identification is becoming essential for network management, high quality of service control and early detection of network traffic abnormalities. Techniques based on statistical features of packet flows have recently become popular for network classification due to the limitations of traditional port and payload based methods. In this paper, we propose a metho...

Distributed Denial of Service (DDoS) attacks can effect the steady functioning of any network, posing a severe security threat. Concentrated single source DDoS attacks consume huge resources like bandwidth in a very small duration and have direct impact at ISP level, thus making them easily detectable. In contrast, diluted low rate DDoS attacks lead to graceful degradation of network over a lon...

ToToday’s market place is increasingly dynamic and volatile. In this area supply network issues recently have attracted a lot of attention from industrial practitioners and academics worldwide. Chaos theory is the study of complex, nonlinear, dynamic systems. For chaotic systems, a tiny change in conditions may result in an enormous change in system output, whereas substantial changes in condit...

Networks-on-Chips (NoCs) represent a scalable wiring solution for future chips, with dynamic allocation-based networks able to provide good utilisation of the scarce available resources. This thesis develops power-efficient, dynamic, packet-switched NoCs which can support onchip communication flows. Given the severe power constraint already present in VLSI, a power efficient NoC design directio...

This paper presents a single-level nonlinear optimization model to estimate dynamic origindestination (OD) demand. A path flow-based optimization model, which incorporates heterogeneous sources of traffic measurements and does not require explicit dynamic link-path incidences, is developed to minimize (i) the deviation between observed and estimated traffic states and (ii) the deviation between...

Network coding is a novel field of information theory and coding theory. It is a breakthrough over the traditional store-and-forward routing methods by allowing coding of two or more packets together. From an information flow aspect, multiple flows could be overlapped in a routing scheme. Hence, the theoretical upper bound of multicast capacity could be achieved by network coding. In this proje...

A dynamic self-organized morphology is the hallmark of network-shaped organisms like slime moulds and fungi. Organisms continuously re-organize their flexible, undifferentiated body plans to forage for food. Among these organisms the slime mould P. polycephalum has emerged as a model to investigate how organism can self-organize their extensive networks and act as a coordinated whole. Cytoplasm...