3-Dimensional Shift Keying Modulation Schemes for High Rate MIMO Systems

In this treatise, a novel modulation scheme aimed for achieving high-rates MIMO systems is proposed, which is termed as 3-Dimensional Shift Keying (3- DSK). In the proposed 3-DSK scheme, the information bits can be mapped onto three distinguished information carriers, namely, spatial domain, matrix domain and signal dimension. Since the novel 3-DSK principle is capable of encoding information bits into three information carriers, high throughout can be achieved. Moreover, this 3-DSK framework subsumes diverse existing MIMO arrangements, such as Spatial Modulation (SM), Generalized Space-Time Shift Keying (GSTSK) scheme and Vertical Bell Lab´s Layered Space-Time structure due to its high design flexibility. Additionally, a potential full transmit diversity can be achieved by jointly exploiting the spatial and temporal dimensions. At the receiver, a Maximum Likelihood decoder is adopted in order to jointly recover the information bits. Finally, we demonstrate through numerous simulation results that the 3-DSK architecture is capable of achieving a lower BER performance over SM and GSTSK as well as LDC schemes, while achieving high rates.