Kablosuz çoklu ortam algılayıcı ağlarında bant genişliği bilinçli ve enerji idareli veri akışı çoğa gönderim protokolleri

In recent years, the interest in wireless sensor networks has grown and resultedin the integration of low-power wireless technologies with cameras and microphonesenabling video and audio transport through a sensor network besidestransporting low-rate environmental measurement-data. These sensor networksare called wireless multimedia sensor networks (WMSN) and are still constrainedin terms of battery, memory and achievable data rate. Hence, delivering multimediacontent in such an environment has become a new research challenge.Depending on the application, content may need to be delivered to a single destination(unicast) or multiple destinations (multicast). In this work, we considerthe problem of eciently and eectively delivering a multimedia stream to multipledestinations, i.e. the multimedia multicasting problem, in wireless sensornetworks. Existing multicasting solutions for wireless sensor networks provideenergy eciency for low-bandwidth and delay-tolerant data. The aim of thiswork is to provide a framework that will enable multicasting of relatively highrateand long-durational multimedia streams while trying to meet the desiredquality-of-service requirements. To provide the desired bandwidth to a multicaststream, our framework tries to discover, select and use multicasting paths that gothrough uncongested nodes and in this way have enough bandwidth, while alsoconsidering energy eciency in the sensor network. As part of our framework,we propose a multicasting scheme, with both a centralized and distributed version,that can form energy-ecient multicast trees with enough bandwidth. Weevaluated the performance of our proposed scheme via simulations and observedthat our scheme can eectively construct such multicast trees.