Abstract
Sensor cloud is the integration of cloud computing and wireless sensor networks (WSN). This integration is beneficial for both WSN providers and cloud service providers. WSN data can be kept over cloud which can be efficiently used by several applications and cloud provider can provide sensor- as a- service through this integration. In sensor cloud, there are multiple physical sensor networks which are mapped with the virtual sensor networks using a cloud to provide services to the users. End users are facilitated to execute multiple applications of WSNs through such VSNs. Some applications can also demand more than one WSN at a time. Virtualization supports to achieve this goal in sensor cloud. Although sensor cloud has several advantages, still it has many research issues like energy efficiency, security, data transmission, QoS, etc. This paper presents a survey on energy efficient data transmission in sensor cloud that discusses and compares the existing techniques of this field.
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