A Study on Cross-Layer Network Synchronization Architecture for TDMA-Based Mobile Ad-Hoc Networks

Autor: Jongho Park, Sung-Hun Jung, Myunghwan Seo, Tae-Jin Lee, Hyung-Weon Cho, Joung-Sik Kim
Rok vydání: 2012
Předmět:
Zdroj: The Journal of Korea Information and Communications Society. 37:647-656
ISSN: 1226-4717
DOI: 10.7840/kics.2012.37b.8.647
Popis: TDMA MAC protocol in MANET requires precise network synchronization between nodes though network topology changes continuously due to node mobility and the effect of propagation environment. In this paper we propose in-band cross-layer network synchronization architecture for TDMA-based MANETs. In the proposed architecture TDMA MAC protocol and proactive routing protocol cooperate closely to rapidly detect network partition and merge caused by node mobility and to precisely maintain network synchronization. We also implement the proposed synchronization architecture in OPNET simulator and evaluate the performance of it in various simulation scenarios. Simulation results show that our architecture stably maintains network time synchronization in both network partition and merge situations.
Databáze: OpenAIRE