School of Electronic and Optical Engineering;
Nanjing University of Science and Technology;
Nanjing 210094;
P. R. China;
National Mobile Communications Research Laboratory;
Southeast University;
Nanjing 210096;
P. R. China;
College of Computer and Information Sciences;
Fujian Agriculture and Forestry University;
Fuzhou 350002;
P. R. China;
National Key Laboratory of Electromagnetic Environment;
China Research Institute of Radiowave Propagation;
Qingdao 266107;
P. R. China;
pilotless; synchronization; LDPC; code; Gaussian; approximation; rician; fadingchannel; constraint; node; frame; synchronization; error; rate; (FSER);