METHOD OF A DISTRIBUTED COOPERATIVE MAC PROTOCOL FOR REAL-TIME MULTIMEDIA SERVICES IN MULTI-HOP UWB NETWORKS

摘要

PURPOSE: A distribution cooperation protocol method based on a multi-hop UWB(Ultra-WideBand) network for marine telematics is provided to avoid interference generated by a device, which is moved in multi-hop environment, or a plurality of devices, which performs data transmission. CONSTITUTION: When interference or mobility, which is generated by nodes which are existed beyond a communication range, is generated, a new resource allocation information element is generated by using a DRP IE(Distributed Reservation Protocol Information Element) and a DRP availability IE in a channel selection process. The DRP IE and the DRP availability IE are collected from all nodes within the communication range. When DT(Direct Transmission) is selected, a source node performs a DRP reservation negotiation process defined by a WiMedia standard. When RT(Relay Transmission) or CT(Cooperative Transmission) is selected, the source node generates a CoopDRP IE.