Abstract
In this paper, we consider a network of energy constrained sensors deployed over a region. Each sensor node in such a network is systematically gathering and transmitting sensed data to a base station (via cluster- heads). This paper focuses on reducing the power consumption of wireless sensor networks. Firstly, we proposed an Energy-balanced Clustering Routing Algorithm called LEACH-L, which is suitable for a large scope wireless sensor network. Secondly, optimum hop-counts are deduced. Lastly, optimum position of transmitting node is estimated. Simulation results show that our modified scheme can extend the network lifetime by up to 80% before first node dies in the network. Through both theoretical analysis and numerical simulations, it is shown that the proposed algorithm achieves higher performance than the existing clustering algorithms such as LEACH, LEACH-M.
Highlights
Wireless Sensor Networks (WSNs) can collect reliable and accurate information in distant and hazardous environments, and can be used in National Defence, Military Affairs, Industrial Control, Environmental Monitor, Traffic Management, Medical Care, Smart Home, etc
We propose an advanced multiple-hop routing protocol named LEACH-L, whose features can be described as follows: when the cluster-heads are close to, they directly communicate with Base station (BS); when they are far in distance, they telecommunicate by multiple-hop way, and the shortest transmission distance is limited
In [4], author addresses the problem of clustering in WSNs, subject to upper bounds on the maximum latency, the energy consumed by intermediate nodes, and clusters size
Summary
Wireless Sensor Networks (WSNs) can collect reliable and accurate information in distant and hazardous environments, and can be used in National Defence, Military Affairs, Industrial Control, Environmental Monitor, Traffic Management, Medical Care, Smart Home, etc. The sensor whose resources are limited is cheap, and depends on battery to supply electricity, so it’s important for Routing to efficiently utilize its power. We propose an advanced multiple-hop routing protocol named LEACH-L, whose features can be described as follows: when the cluster-heads are close to, they directly communicate with Base station (BS); when they are far in distance, they telecommunicate by multiple-hop way, and the shortest transmission distance is limited. The authors respectively simulate LEACH [1], LEACH-M [2], and LEACH-L on the Matlab. The simulation experiments indicate that: LEACH-L can prolong the whole network lifetime
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