abstractaccidents and natural disasters and crises coming out of them indicate the importance of an integrated planning to reduce their effected. therefore, disaster relief logistics is one of the main activities in disaster management. in this paper, we study the response phase of the disaster management cycle and a bi-objective model has been developed for relief chain logistic in uncertainty...

Achieving good performance in wireless mesh network (WMN), implementation of routing metrics is very important. Multiple channels among the multiple radio improve the capacity of the network. Interference based routing metric such as Weighted Cumulative Expected Transmission Time (WCETT), Weighted Cumulative Consecutive Expected Transmission Time (WCCETT), are being proposed in multi-channel mu...

Routing metrics of multi-hop wireless networks differ from traditional routing metrics due to dynamic and unpredictable nature of wireless media. Many routing metrics were proposed for single-radio as well as multi-radio mesh networks. In this paper we study various routing metrics such as Expected Transmission Count (ETX) metric, Expected Transmission Time (ETT), Weighted cumulative ETT (WCETT...

We consider a generalization of the capacitated vehicle routing problem known as the cumulative vehicle routing problem in the literature. Cumulative VRPs are known be a simple model for fuel consumption in VRPs. We examine four variants of the problem, and give constant factor approximation algorithms. Our results are based on a well-known heuristic of partitioning the traveling salesman tours...

The Cumulative Capacitated Vehicle Routing Problem (CCVRP) is a variation of the classical Capacitated Vehicle Routing Problem in which the objective is the minimization of the sum of arrival times at customers, instead of the total routing cost. This paper presents an adaptive large neighborhood search heuristic for the CCVRP. This algorithm is applied to a set of benchmark instances and compa...

Heterogeneous travelling repairmen problem with time windows (hetTRPTW) is customer oriented problem with large possibilities for practical applications in logistics area. Models and algorithms developed for solving one problem with a cumulative objective function may be, with a little effort, transformed for solving similar problem with a cumulative function. In that sense, aim of this paper i...

In the past decades, there has been an increasing body of research in vehicle routing problems involving cumulative costs. These consider objective functions such as sum arrival times to customers or costs based on vehicles’ load throughout routes. This paper reviews this type problem by means (Cum-VRP) and capacitated (CCVRP). doing so, we present discuss all related variants with regard diffe...

In this paper, we design trusted routing protocols using trusted frame works and intrusion detection system (secure protocol) for MANET. We extend the routing table and the routing messages of ADOV with trust information which can be updated directly through monitoring in the neighborhood. When performing trusted routing discovery, unlike those cryptographic schemes that perform signature gener...

Due to emerging real-time and multimedia applications, efficient routing of information packets in dynamically changing communication network requires that as the load levels, traffic patterns and topology of the network change, the routing policy also adapts. We focused in this paper on QoS based routing by developing a neuro-dynamic programming to construct dynamic state dependent routing pol...