A Location-Aware Error Control Scheme of Route Multicast for Moving Agents

This paper proposes a route multicast scheme for the moving agent such as a robot or telematics built on top of a wireless network which runs CFP (Contention Free Period) and CP (Contention Period) alternately. With the mappings of route multicast to CFP, error report to CP, and retransmission to redundant bandwidth of CFP, the proposed scheme can guarantee timely delivery of route information under the strict traffic control of the access point. Combined with beacon-aided timely error report mechanism, the location-aware error control scheme is able to reduce the network load by making an agent perform the error control only for the route information it may use in the near future. The simulation results demonstrate that the proposed scheme enhances the effective success ratio of the route multicast by 8.1 % for the given experiment parameters, compared with the legacy multicast protocols.

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