标题：Performance Analysis of SM-Index Modulation Based Cooperative Wireless Communication System
作者：Yang, Yingchao; Bai, Zhiquan; Pang, Ke; Sun, Shangqian; Han, Tao; Kwak, Kyungsup
作者机构：[Yang, Yingchao; Bai, Zhiquan; Pang, Ke] Shandong Univ, Sch Informat Sci & Engn, Jinan, Shandong, Peoples R China.; [Sun, Shangqian] Shandong Univ, 更多
会议名称：18th IEEE International Conference on Communication Technology (IEEE ICCT)
会议日期：OCT 08-11, 2018
来源：2018 IEEE 18TH INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY (ICCT)
关键词：cooperative wireless communication system; spatial modulation;; index-modulation; BER analysis
摘要：Cooperative communications with spatial modulation (SM) scheme have been studied for high speed and reliable wireless transmission systems. For common SM technique, the transmit antenna is selected by the input information bits randomly. However, the real channel condition corresponding to the active antenna determines the performance of SM system directly. SM-index modulation (SM-IM) scheme can modulate the index of the active transmit antenna and the modulated SM symbol into a new transmit symbol, which can be employed to get rid of the poor channel conditions' impact on the performance of SM systems. To further improve the system performance, we propose a cooperative communication system based on SM-IM scheme in this paper, which can avoid the disadvantages of the poor channel allocation of the cooperative SM system. Closed-form expression of the average bit error rate (BER) of the proposed SM-IM cooperative system is derived. Simulation results and analysis show that the proposed scheme outperforms the typical dual-hop SM cooperative system significantly.