Oksana Denysyuk
Heterogeneity-Aware Multicast for MANETs
Tese submetida para provas de mestrado em Engenharia Informática e de Computadores
Instituto Superior Técnico, Universidade Técnica de Lisboa.
Abstract
Multicast is an essential group communication service and an
important building block for many applications in MANETs, including
data dissemination, service discovery, publish-subscribe, among
others. Therefore, it has been widely studied and many solutions can
be found in the literature. However, most existing multicast
protocols are tailored to a specific type of mobility pattern and
therefore are unable to excel in face of heterogeneous mobility
conditions.
This thesis proposes and evaluates HAMP, a Heterogeneity-Aware
Multicast Protocol for MANETs that combines the efficiency of
structured approaches and the robustness of flooding-based
schemes. HAMP dynamically adapts its forwarding mechanism according
to locally observed mobility conditions. If much mobility is
observed in the neighborhood the node starts forwarding multicast
traffic using a scoped flooding technique. As local network
conditions stabilize the node reverts to a structured mesh-based
operation.
HAMP was implemented as a combination of a mesh-based protocol that
uses a flooding-based technique. However, the main idea of combining
structured and unstructured approaches in the same protocol can be
also applied to other forwarding schemes. Experimental results
obtained using the NS-2 network simulator confirm that HAMP
successfully combines the robustness of flooding with the efficiency
of mesh-based routing.
Publicações
- Heterogeneity-Aware Multicast for MANETs
- Oksana Denysyuk
- MSc Thesis. Instituto Superior Técnico, Universidade Técnica de Lisboa.
- October, 2009.
- Available BibTeX, MSC Thesis, and mid-term report.
- HAMP - Protocolo de Difusão em Grupo Para Redes Com Padrões de Mobilidade Heterogéneos
- O. Denysyuk, J. Mocito, L. Rodrigues.
- Actas da 9a Conferência sobre Redes de Computadores, 15 e 16 de Outubro de 2009, Oeiras, Portugal
- Available BibTeX, extended report (pdf).
Luís Rodrigues