Abstract
Novel communication technology based on large intelligent surface (LIS), which manipulates the phase of the incident waves to enhance the communication quality, has been proposed as a promising candidate for future wireless communication systems and standards. In order to improve the spectral efficiency, the concept of LIS assisted communications has been introduced into the realm of index modulation (IM) recently. In this letter, a practical LIS based generalized spatial modulation (LIS-GSM) scheme is proposed by modulating the transmit signals through both transmitter and LIS jointly while designing the pattern of receive antennas in a more flexible way. Furthermore, a unified framework for the derivation of the theoretical average bit error rate (ABER) based on the maximum likelihood detector is also presented. Simulation results demonstrate that LIS-GSM is more robust in terms of ABER as well as receive antenna pattern compared with conventional LIS-SM.
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