Academic & Scientific Articles

Permanent URI for this communityhttp://dl.cerist.dz/handle/CERIST/3

Browse

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    TopCoF: NS2-based Topology Control Framework for Wireless Ad hoc Networks
    (CERIST, 2010-02) Yahiaoui, Saïd; Belhoul, Yacine; Faoudi, Farid; Kheddouci, Hamamache
    Topology Control (TC) is the most well known technique used in wireless ad hoc and sensor networks to reduce energy consumption and radio interferences. This technique coordinates the decisions of network nodes about their transmission power to save energy, prolong network lifetime, and mitigate MAC-level medium contention, while maintaining network connectivity. In order to ease the implementation and the study in systematic way of proposed TC protocols and algorithms, in terms of energy usage and network graph properties, we propose a new framework based on NS-2 simulator. The framework is named TopCoF and composed of two main parts. The first one consists of a set of NS-2 extensions to support TC, while the second is a graphical user interface for statistical analysis and visualization of simulation results traced by the first part. TopCoF is modular and generic since it implements a set of basic components used by TC protocols. We illustrate, by an example, how TopCoF facilitates the implementation and performance evaluation of TC
  • Thumbnail Image
    Item
    Extending the AODV Protocol to Provide Quality of Service in Mobile Ad Hoc Networks
    (2011-04-24) Bouchama, Nadir; Nouali-Taboudjemat, Nadia; Aïssani, Djamil; Djellab, Natalia; Maouchi, Houari
    Voice communication is the most needed application in disaster management. However, without good QoS tuning, its performance can be poor. QoS routing is one of the most important building blocks in any given QoS solution. To conceive a QoS routing protocol for ad hoc networks, we can either conceive anew protocol from scratch, or extend an existing best effort protocol like AODV (Ad-hoc On- Demand Distance Vector Routing Protocol). The main advantage for the second approach is its easiness. In this paper, we propose a new QoS routing protocol that can satisfy multimedia application requirements in ad hoc networks. Thereafter, we present and discuss simulation results obtained under the NS-2 simulator for a VoIP application
  • Thumbnail Image
    Item
    TopCoF: A Topology Control Framework for Wireless Ad hoc Networks
    (IEEE, 2010-12) Yahiaoui, Saïd; Belhoul, Yacine; Faoudi, Farid; Kheddouci, Hamamache
    Topology Control (TC) is a well known technique used in wireless ad hoc and sensor networks to reduce energy consumption. This technique coordinates the decisions of network nodes about their transmission power to save energy, prolong network lifetime, and mitigate MAC-level medium contention, while maintaining network connectivity. In order to ease the implementation and the study in systematic way of proposed TC protocols, in terms of energy usage and network graph properties, we propose a new framework based on NS-2 simulator. The framework is named TopCoF and composed of two main parts. The first one consists of a set of NS-2 extensions to support TC, while the second is a graphical user interface for statistical analysis and visualization of simulation results traced by the first part. TopCoF is modular and generic since it implements a set of basic components used by TC protocols.