Abstract
Wireless sensor network is drawing intensive research attention and being applied in various practical scenarios. The integration of WSN in industrial manufacturing process provides low cost industrial automation systems. The benefits of WSN include rapid deployment, self-organization, and being maintenance free. However, wireless sensor nodes are battery powered; replacing or recharging battery is usually impossible after deployment, which makes energy a scarce resource for WSN. Furthermore, in industrial applications, environment information is gathered and delivered in a timely manner, which makes traditional energy saving methods such as listen-sleeping duty approach less efficient. In this work, a novel dynamic address encoding scheme based on packet arrival rate is proposed; the scheme can reduce the protocol overhead by reducing MAC and network address size and thus saves energy needed for data transmission. The implementation of the scheme is fully distributed and needs little modification of the existing applications. Simulation results show the proposed scheme is efficient and robust on both the MAC layer and the network layer.
Highlights
Nowadays, in the competitive industrial marketplace, companies face growing demands in increasing the efficiency of manufacturing process to achieve financial goals
With the technique advances in wireless sensor networks (WSN), in recent years, researchers suggest integrating WSN in industrial manufacturing process to provide low cost automation industrial systems, which is known as industrial wireless sensor network (IWSN) [3]
The proposed scheme is implemented in a totally distributed way that no central control is needed. It is implemented in a compatible way as sublayers for MAC layer and network layer, respectively; modifications are not needed for the existing protocols or applications
Summary
In the competitive industrial marketplace, companies face growing demands in increasing the efficiency of manufacturing process to achieve financial goals. The sink node usually sits on the edge of the autonomous network, which further passes the data to the plant personnel In this way, action can be taken whenever unexpected parameters are observed in the manufacturing process. The radio subsystem on sensor node usually works on four modes: transmitting, receiving, idle listening, and sleeping. While the sensor node is transmitting or receiving data, the radio subsystem works at maximum power level and consumes large amount of battery power. Most of the current proposed energy conservation schemes for WSN concentrate on optimizing idle listening mode [7, 8] Such schemes try to lower battery drain by prolonging the sleep period of the radio subsystem, with which the idle period between two consecutive data exchanging processes is split into listening and sleeping cycles. It is implemented in a compatible way as sublayers for MAC layer and network layer, respectively; modifications are not needed for the existing protocols or applications
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