Mobile Networks Ad hoc on demand multipath distance vector routing (AOMDV) over a distributed TDMA MAC protocol for QoS support in wireless ad hoc networks: integration issues and performance evaluation

This paper focuses on the problem of QoS multi-path in wireless ad hoc networks. An integration of a novel multi-path routing protocol and a distributed time division multiple access (TDMA) MAC protocol is proposed. The MAC considered is called evolutionary TDMA (E-TDMA) and the analysed multi-path routing protocol is the ad hoc on demand multi-path distance vector (AOMDV) protocol. The integrated approach multi-path routing and TDMA MAC protocol offers advantages typical of multi-path routing, in terms of reduced route discovery frequency and increased throughput. The advantage of the E-TDMA MAC is a higher throughput in comparison with the standard IEEE 802.11 MAC and the reduction of the contention interference due to the slot reservation mechanism for high-data traffic. Two schemes to build the multi-route are exploited. The simulation results show the benefits of the integrated routing-MAC protocol in terms of reduced overhead, higher throughput and reduced end-to-end delay for a scenario with very high mobility and heavy data traffic. Copyright © 2006 AEIT

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