1st International ICST Workshop on Cross-layer Design in Wireless Mobile Ad hoc Networks

Research Article

A Low-Latency TDMA Scheduler for Multi-hop Cluster Based MANETs with Directional Antennas

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  • @INPROCEEDINGS{10.1007/978-3-642-11723-7_62,
        author={Michael Iannacone and Yamin Al-Mousa and Nicholas Martin and Nirmala Shenoy and John Fischer},
        title={A Low-Latency TDMA Scheduler for Multi-hop Cluster Based MANETs with Directional Antennas},
        proceedings={1st International ICST Workshop on Cross-layer Design in Wireless Mobile Ad hoc Networks},
        proceedings_a={CROSS-LAYER},
        year={2012},
        month={7},
        keywords={Mobile ad hoc networks (MANTEs) time division multiple access (TDMA) directional antennas clustering},
        doi={10.1007/978-3-642-11723-7_62}
    }
    
  • Michael Iannacone
    Yamin Al-Mousa
    Nicholas Martin
    Nirmala Shenoy
    John Fischer
    Year: 2012
    A Low-Latency TDMA Scheduler for Multi-hop Cluster Based MANETs with Directional Antennas
    CROSS-LAYER
    Springer
    DOI: 10.1007/978-3-642-11723-7_62
Michael Iannacone, Yamin Al-Mousa, Nicholas Martin, Nirmala Shenoy, John Fischer

    Abstract

    For Mobile Ad Hoc Network (MANET) applications which involve large propagation delays and/or directional antennas, a Time Division Multiple Access (TDMA) Medium Access Control (MAC) is a resource- and bandwidth-efficient solution. Meanwhile, clustering is a solution to the scalability and high mobility which is commonly required by MANETs. Here we develop a system which combines a TDMA MAC using directional antennas with the Multi-Meshed Tree (MMT) algorithm, which handles clustering and routing tasks. Some of the benefits of this combination include being able to synchronously schedule all intra-cluster routes as they are formed, being able to optimize the intra-cluster schedules for low latency, and being able to calculate these schedules with knowledge of only the intra-cluster topology, which is already maintained by MMT. We first analytically determine the end-to-end latency under various cases, and then confirm these results for several cases through OPNET simulation. Additionally, we note the high degree of slot re-use which is possible due to the use of directional antennas, which is demonstrated by the simulation results.