Joint Transmitter–Receiver Spatial Modulation

Abstract

We propose and investigate a joint transmitter-receiver spatial modulation (JSM) scheme, which transmits information by jointly exploiting the indices of transmit antenna patterns, the indices of receiver antennas, and amplitude-phase modulation. The proposed JSM is capable of simultaneously achieving transmit diversity, receive diversity, and multiplexing gain. In order to facilitate the implementation of the JSM with different reliability-complexity tradeoff, two types of detectors are introduced, which are the maximum-likelihood detection (MLD) and the proposed sub-optimal detection (SOD), including a two-stage SOD and a three-stage SOD. In order to gain insight into the characteristics of the JSM, we analyze the approximate and asymptotic average bit error probability of the JSM systems employing MLD, when regular-scale and large-scale JSM systems are, respectively, considered. Finally, the performance of the JSM systems is investigated with the aid of both simulation and numerical evaluation of our derived formulas. Our studies show that the JSM employs a high flexibility for implementation and online configuration, so as to adapt to the communications environments and to attain the best possible performance.

Keywords

• Multiple-input multiple-output (MIMO)
• spatial modulation
• transmitter preprocessing
• signal detection
• average bit error probability
• asymptotic analysis