Energy- Balanced Unequal Clustering Algorithm for Wireless Sensor Networks of Mine Roadway
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摘要: 针对矿井巷道长带状拓扑结构造成的距汇聚点近的簇首节点数据转发过重而过早死亡的"热区"问题, 提出了一种能量均衡的非均匀分簇算法(EBUC-M).构造一种新的阈值公式选举候任簇首; 候任簇首以一定的竞选半径竞争最终簇首, 使得靠近汇聚节点的簇数量较多, 簇内节点较少, 远离汇聚节点的簇数量较少, 簇内节点较多, 从而平衡能量消耗; 簇内通信采用混合跳的形式来使负载均衡; 簇首间的数据转发机制采用使能量消费最低的方式选择下一跳.仿真表明该协议能有效的平衡能量消耗, 达到负载均衡, 从而延长网络生命周期.Abstract: An energy-balanced unequal clustering algorithm is proposed to solve the "hotspot" problem caused by long ribbon topology of mine roadway, in which the cluster heads close to the sink which has heavy burden leading to failure. A new threshold formula is constructed to elect the candidate cluster heads. Candidate cluster heads determine the cluster heads by certain campaign radius. After a reasonable partition, the clusters closer to the sink node have fewer nodes than those farther away from the sink node to balance the energy consumption; the hybrid communication mode within the cluster is adopted for the load balancing; for the data-forwarding between the cluster heads, the lowest energy consumption mechanism is proposed to select the next hop. Simulation results show that this protocol can balance energy consumption effectively to extend the network life cycle.
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Key words:
- long ribbon /
- hotspot /
- unequal clustering /
- hybrid communication mode /
- energy consumption cost /
- mine /
- engineering geology
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表 1 网络参数
Table 1. Network parameters
参数 取值 节点个数 800 汇聚点位置 (0,0)m 节点初始能量 2J 区域位置 (0,0)~(0,1 000)m Eelec 50n J/bit εfs 10p J/bit εamp 0.001 8p J/bit d0 66 m -
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