| Wireless Multimedia Sensor Networks(WMSNs)is a new kind of wireless sensor network.It adopts some multimedia sensors with ability of video and image procession and is widely used in some areas such as monitoring and detection of the main structure of urban architecture,the macro control of urban traffic,oil field remote monitoring system,Industrial field environmental monitoring,smart agriculture,"Internet+" etc.In recent years,researchers at home and abroad have deep studies of some issues such as network and information security,Qo S and routing in wireless multimedia sensor networks.However,there are still many problems in wireless multimedia sensor networks.For example,the life cycle of the wireless multimedia network is restricted by the high energy consumption node;there are error codes and optimal path selection and the declaration period when multimedia data is transmitted between the nodes.In brief,the above problems are summed up as two problems of energy saving and QoS.In order to solve these two problems,this paper mainly studies the cluster-based energyefficient QoS routing algorithm in WMSNs by using the concepts and methods such as layering thought,the evaluation of alternative path energy average consumption,multimedia coding scheme based ADS-ERA,hierarchical QoS aware cross layer routing algorithm and intra cluster Qo S routing algorithm.The main work is as follows:1.Aiming at the problem of multimedia information transmission between nodes in the wireless multimedia sensor network,the multimedia information coding scheme based on ADS-ERA is adopted in this paper.The multimedia information coding scheme based on QoS is used in this paper.The coding scheme is deployed on the cluster head node to work on the super node.When the base station node needs the surrounding environment information and the adjacent contact energy information,the super node runs the coding scheme and collects the forwarding path of multimedia information and the average minimum energy consumption.We choose the path of minimum packet and minimum transmission capacity to process and forward multimedia information.The experimental results show that the ADS-ERA based multimedia information coding method ensures the correct transmission and real-time transmission of information,and improves the quality of network service.2.Aiming at the problem that the lifetime of the wireless multimedia network is limited by the energy consumption of a single node and the optimal path selection,this paper uses the hierarchical QoS aware cross layer routing algorithm and the cluster QoS routing algorithm to find the minimum energy consumption and load balancing in the hierarchical wireless multimedia sensing network topology.Information forwarding path.Cross layer routing algorithm sets cross layer cost function,which is suitable for information forwarding between nodes in hierarchical network.After cluster routing algorithm is initialized,cluster heads are determined according to the average energy consumption evaluation index.Qo S evaluation is carried out and cluster association is used to collect routing information and energy information of adjacent nodes,and cluster heads are considered by considering energy factors and load factors.The introduction of cluster heads significantly shortened the network reaction time.The consumption of WMSNs resources was relatively average,which prolongs the life cycle of networks,and the allocation of communication resources is relatively average.The multi-media sensor node work and the dormant cycle mode are set,the dormant node is activated when the information is forwarded,and the average work energy consumption of the multimedia sensor nodes is reduced and the life cycle of the nodes is delayed.The experimental results show that the hierarchical Qo S perception cross layer routing algorithm reduces the node capacity consumption,realizes load balancing and prolongs the life cycle of wireless multimedia sensing network. |
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