标题：Spatial Modulation via 3-D Mapping
作者：Guo, Shuaishuai; Zhang, Haixia; Jin, Shi; Zhang, Peng
作者机构：[Guo, Shuaishuai; Zhang, Haixia] Shandong Univ, Shandong Prov Key Lab Wireless Commun Technol, Jinan 250100, Peoples R China.; [Jin, Shi] Southeast 更多
通讯作者地址：[Zhang, HX]Shandong Univ, Shandong Prov Key Lab Wireless Commun Technol, Jinan 250100, Peoples R China.
来源：IEEE COMMUNICATIONS LETTERS
关键词：Spatial modulation; multiple-input multiple-output (MIMO); 3-D mapping
摘要：This letter proposes a jointly mapped spatial modulation (JM-SM) scheme to break through the constraint on the number of transmit antennas in traditional SM systems. It is realized via jointly mapping the transmit information bits to 3-D constellation points. A 3-D constellation design scheme for a JM-SM is analyzed and established by minimizing the system average bit error probability (ABEP). In addition, the extension of the joint 3-D mapping to generalized spatial modulation is discussed. The simulation results show that the proposed schemes can be adapted to multiple-input multiple-output systems with an arbitrary number of transmit antennas and offer better ABEP performance than those existing schemes.