西安交通大学电子与信息工程学院,西安,710049
网络首发:2010-06-10,
纸质出版:2010
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张荣博, 曹建福. 利用蚁群优化的非均匀分簇无线传感器网络路由算法[J]. 西安交通大学学报, 2010,44(6):33-38.
Uneven Clustering Routing Algorithm for Wireless Sensor Networks Based on Ant Colony Optimization[J]. 2010, 44(6): 33-38.
针对无线传感器网络路由非均匀分簇中随机簇首选举路由的可靠性和实时性问题
提出一种新的无线传感器网络路由算法.该算法的核心是:通过蚁群优化来改变非均匀分簇算法的周期性簇首选举方式
即只在第一轮执行簇首选举和路径搜索
其他轮次采用簇内调整和路由更新; 通过引入路由可靠性和实时性指标达到自组织、自适应和动态优化来建立和维护路由.簇首选举采用竞选
所有节点参与竞选
并且将节点剩余能量和节点到汇聚点的距离作为评价标准
以保证簇内能量效率最高的节点成为新簇首.路径搜索采用蚁群算法进行
即搜索网络中所有的簇首和汇聚点
以寻找从各个簇首到汇聚点代价最小的多跳路由.仿真结果表明
所提算法在能耗和链路可靠性方面比非均匀分簇算法的性能更好
即在较长的时间内具有更多的存活节点
网络丢包率小.
Addressing reliability and real-time issues of wireless sensor networks
a novel ant colony optimization based uneven clustering routing algorithm(ACOUC)is proposed based on Energy-Efficient Uneven Clustering algorithm(EEUC).The EEUC periodical election method is changed via ant colony optimization. ACOUC executes cluster head election and routing discovery only in the first round
and cluster adjustment and routing update instead in other rounds. The introduction of reliability and real-time indicators enables its routing establishment and maintenance more self-organizing
self-adaptive and dynamic. ACOUC lets all the nodes take part in cluster head competition
take both energy and distance as evaluation criteria to ensure the node with highest energy efficiency winning. ACOUC adopts ant colony algorithm to search the lowest cost multi-hop routing from cluster heads to sink node. The simulation shows that ACOUC performs better in energy efficiency and reliability than EEUC
resulting in more nodes alive in a longer period
and smaller packet loss rate.
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