Kim, Hyunduk Kim, Chulki Kim, Jaehun Seo, Minah Lee, Seok Lee, Taikjin 2024-01-20T07:34:55Z 2024-01-20T07:34:55Z 2021-09-05 2015-02 1550-1329 https://pubs.kist.re.kr/handle/201004/125799 In wireless sensor networks, the clustering methods proposed to improve the energy efficiency of a sensor network can lead to severe energy consumption by the cluster heads. Furthermore, in the case where an unbalanced cluster structure is generated, the overall lifetime of the sensor networks is significantly reduced. Moreover, existing cooperative communication methods, for example, CoopLEACH, waste energy because of the unilateral cooperative communication method, which does not consider the distance between the sink and cluster heads. To solve these problems, this paper proposes a novel method that transmits and collects data according to the density of the nodes and the distance between the sink and cluster heads. Through extensive performance studies, we observed that our method is 12% more energy-efficient than CoopLEACH. English SAGE PUBLICATIONS INC A Context Aware Cooperative Communication Method in Wireless Sensor Networks Article 10.1155/2015/357509 1 INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, v.2015 INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS 2015 N scie scopus 000357801100001 2-s2.0-84934289326 Computer Science, Information Systems Telecommunications Computer Science Telecommunications Article ROUTING PROTOCOLS WSN CoopLEACH LEACH Clustering MIMO Cooperative communication