[Wang, Minghua; Deng, Xianjun] Univ South China, Dept Commun Engn, Hengyang, Peoples R China.
[Yang, Laurence T.] St Francis Xavier Univ, Dept Comp Sci, Antigonish, NS, Canada.
[Yi, Lingzhi] USC, Sch Environm Protect & Safety Engn, Hengyang, Peoples R China.
[Yi, Lingzhi] USC, Sch Civil Engn, Hengyang, Peoples R China.
[Zhu, Zhiliang] Wenzhou Univ, Coll Phys & Elect Informat Engn, Wenzhou, Zhejiang, Peoples R China.