论文标题
使用翻译模式改善广义空间调制
Improving Generalized Spatial Modulation using Translation Patterns
论文作者
论文摘要
当发射器处的射频链数小于发射天线元件的数量时，广义空间调制（GSM）是一种用于多输入多输出（MIMO）无线通信的光谱效率技术。我们提出了一个信号星座的家族，作为对GSM的改进，将信息位分为三个部分，并将第一部分编码为一组复杂的符号，第二部分是激活变速箱的一部分（如GSM）的选择子集（如GSM），并将第三部分分为第三部分，将通过激活的符号传递到通过激活的天线传输的符号。我们方案的名义编码增益（在传输向量之间的平方最小距离与发射功率之间的平方最小距离之比）高于GSM的最低距离，至少高0.86 dB，并且基于系统参数，这种改进的比例可以高达2.87 dB。我们表明，就错误性能，名义编码增益和设计灵活性而言，新方案比GSM的其他已知信号星座具有优势。
Generalized spatial modulation (GSM) is a spectral-efficient technique used in multiple-input multiple-output (MIMO) wireless communications when the number of radio frequency chains at the transmitter is less than the number of transmit antenna elements. We propose a family of signal constellations, as an improvement over GSM, which splits the information bits into three parts, and encodes the first part into a set of complex symbols, the second part into the choice of a subset of antennas activated for transmission (as in GSM), and the third into a translation pattern that offsets the symbols transmitted through the activated antennas. The nominal coding gain (the ratio of the squared minimum distance between transmit vectors to the transmit power) of our scheme is higher than that of GSM by at least 0.86 dB, and this improvement can be as much as 2.87 dB based on the system parameters. We show that the new scheme has advantages over other known signal constellations for GSM, in terms of error performance, nominal coding gain and design flexibility.
