Wenlan Wu, Xianbin Wen, Haixia Xu, Liming Yuan, Qingxia Meng, Vol. 12, No. 3, March 30, 2018
10.3837/tiis.2018.03.006

• heterogeneous wireless sensor networks
• Range-free localization
• multi-hop
• expected hop progress
• quantum particle swarm optimization

Wenjuan Wang, Yuwang Yang, Lei Wang, Wei Lu, Vol. 12, No. 1, January 30, 2018
10.3837/tiis.2018.01.004

• Range-free localization
• sensitivity of parameters
• improved algorithm
• intelligent optimization algorithms.