Xiaoqiang Zhao, Hui Zhu, Slavisa Aleksic, Qiang Gao, Vol. 12, No.6, June 30, 2018
10.3837/tiis.2018.06.011

• wireless sensor networks (WSNs)
• energy-efficiency
• Gray Wolf Optimizer (GWO)
• balanced cluster structure
• network lifetime

Tsingsong Zhou, Qiang Gao, Li Fei, Vol. 10, No.6, June 30, 2016
10.3837/tiis.2016.06.007

• Outdated CSI
• incremental relaying
• amplify-and-forward
• opportunistic relaying
• average spectral efficiency
• outage probability