Buffer-overflow and Noise-handling Model: Guaranteeing Quality of Service Routing for Wireless Multimedia Sensor Networks

摘要

Wireless Sensor Networks (WSNs) are the collection of sensor nodes that form a momentary network without the support of any centralized administration or infrastructure. In such a situation, it is mandatory for each sensor node to obtain the support of other sensor nodes in order to advance the packet to its desired destination node, particularly to the sink node or base station. One significant challenge in designing the wireless multimedia sensor network is introducing an energy efficient routing protocol, which may transmit information despite limited resources. Another significant problem is determining the resources of the next hop node in advance. The routing protocols in existing literature mainly focus on prolonging the network lifetime. In this study, we introduce the buffer-overflow distance-aware and noise-handling (BODANH) model to guarantee the quality of service (QoS) for multipath routing over wireless multimedia sensor networks. The BODANH involves three components: Buffer allocation, distance measurement and signal-to-noise-ratio. This model prevents the loss of data and avoids the congestion caused by buffer-overflow, identifies the node distance prior to route discovery that helps determine the location and distance when node it is either movable or immobile. The performance of our model is compared to other QoS routing protocols . Simulation results demonstrate that our model surpasses the other routing QoS routing protocols in terms of throughput and the remaining live nodes in static and mobility scenarios.