Performance Evaluation of NeBuST-wide Burst Sensor Data Transmission Protocol

In an event-based sensor network, a sequence of burst sensor data messages are required to be transmitted in shorter transmission delay without losses. However, it is difficult due to limited communication buffers in intermediate sensor nodes in a wireless multihop transmission route to the sink node. This paper proposes NeBuST-wide routing and transmission protocols in which sensor data messages are transmitted along dynamically determined transmission routes in messageby-message manner. In case of a full communication buffer in the next-hop wireless sensor node, an intermediate node forwards data messages to another neighbor node to make detour transmissions for achieving shorter transmission delay and for avoidance of losses of the sensor data messages. In addition, this paper evaluates the performance of NeBuST-wide in comparison with the original NeBuST to make clear the effect of wider distribution of burst sensor data message transmissions and in comparison with a static multi-route transmission protocol.