¹College of Information Engineering, Xiangtan University, Xiangtan, 411105, China
²Key Laboratory of Intelligent Computing & Information Processing of Ministry of Education, Xiangtan University, Xiangtan, 411105, China
³School of Computer, National University of Defense Technology, Changsha, 410073, China
⁴National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing 100029, China
⁵Department of Information and Computer Engineering, Ajou University, Suwon, 443749, Korea

---

Abstract—A heterogeneous-aware cooperative MIMO transmission scheme (HAMS) is proposed to optimize the network lifetime and save energy for energy heterogeneous wireless sensor networks (WSN). This scheme extends the traditional low-energy adaptive clustering hierarchy (LEACH) protocol to enable the cooperative MIMO transmission between the sink and clusters. Through the adaptive selection of cooperative nodes and the cooperative MIMO transmission, HAMS can gain effective performance improvement in terms of taking advantage of the presence of node heterogeneity. Based on the energy consumption model developed in this paper, the optimal parameter to minimize the overall energy consumption is found. Simulation results exhibit that HAMS can effectively save energy and prolong the network time. Furthermore, HAMS displays more resilient in different degree of heterogeneous wireless sensor networks.

Index Terms—WSN, heterogeneous-aware, cooperative MIMO, energy efficient.

[PDF]

Cite: Tingrui Pei, Da Xie, Zhetao Li, Dengbiao Tu, Youngjune Choi, "A Heterogeneous-aware Cooperative MIMO Transmission Scheme in WSN," Journal of Software vol. 8, no. 3, pp. 639-644, 2013.