Turbo Trellis Coded hierarchical modulation for cooperative communications
Hua Feng Sun, Yiru Shen, Soon Xin Ng, Lajos Hanzo · 2013
A cooperative communication system assisted by Turbo Trellis-Coded Modulation (TTCM) relying on Hierarchical Modulation (HM) is proposed, which invokes iterative soft decoding. Our results demonstrated that the performance of the single-relay aided cooperative system can be improved by at least 4 dB at a BER of 10−5.