Railway heterogeneous communication network model investigations

Introduction to railway communication

A Human Communication Network Model

A number of attributed formation models based on ErdosRenyi and Barabasi-Albert random graph models are presented. One of them is a Human Communication Network (HCN) model based on time restrictions on face-to-face communication. Construction of this weighted network requires a few numerical parameters and allows to transform any unweighted node attributed network into weighted. This transforma...

Resource Allocation for Multi-Media Communication in Heterogeneous Network

Di erent from traditional data communication,multimedia communication has two distinct characteristics: 1) It is delay sensitive i.e there is a timing constraint associated with it. If a multimedia data packet is delayed beyond a certain time bound, then the packet may be of little or no use. So multimedia communication requires delay guarantees from the underlying network. 2) Multimedia commun...

A Model for Foxy Peer-to-Peer Network Investigations

In recent years, peer-to-peer (P2P) applications have become the dominant form of Internet traffic. Foxy, a Chinese community focused filesharing tool, is increasingly being used to disseminate private data and sensitive documents in Hong Kong. Unfortunately, its scattered design and a highly distributed network make it difficult to locate a file originator. This paper proposes an investigative...

A Comprehensive Approach for Railway Crew Scheduling Problem (Case Study: Iranian Railway Network)

The aim of this study is to propose a comprehensive approach for handling the crew scheduling problem in the railway systems. In this approach, the information of different railway trips are considered as input and the problem is divided to three separated phases. In phase I, we generate all feasible sequences of the trips, which are named as the pairings. A depth-first search algorithm is deve...