Abstract

Sensor doud is the integration of wireless sensor networks (WSN) and cloud computing. This integration is beneficial for both WSN providers and cloud service providers. WSN data can be kept over the cloud which can be efficiently used by several applications and through this integration the cloud provider can deliver sensor- as a- service. In sensor cloud, there are multiple physical sensor networks which are mapped with the virtual sensor networks using cloud in order to provide effective 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. Although sensor doud has several advantages, still it has many research issues like energy efficiency, security, data transmission, QoS etc. This paper initiates a survey on energy efficient data transmission in sensor cloud which discusses and compares the existing techniques of this field.

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