CAJ | 학술논문

为了提高能源使用效率，能量效率（EE）是绿色无线通信研究的主要内容。为了有效提高多天线传输系统的能源使用效率，提出了一种基于能量效率优化的广义空域调制（GS M）系统（E E-GS M）。该系统基于最大化能量效率准则，考虑发射天线数较多的情况，首先利用天线选择算法（AS ）确定最佳发射天线子集，然后计算适合广义空域调制系统的有效射频通道（RFC）数，从而实现全局能量效率优化设计。仿真结果和分析表明，与传统的AS-MIMO、GSM及SM系统相比，新系统能有效地提高能量效率，并且改善了系统的误码率和容量性能，同时系统最终所需的有效射频通道数一般为2，3或4个，符合绿色通信系统设计原则。
위료제고능원사용효솔，능량효솔（EE）시록색무선통신연구적주요내용。위료유효제고다천선전수계통적능원사용효솔，제출료일충기우능량효솔우화적엄의공역조제（GS M）계통（E E-GS M）。해계통기우최대화능량효솔준칙，고필발사천선수교다적정황，수선이용천선선택산법（AS ）학정최가발사천선자집，연후계산괄합엄의공역조제계통적유효사빈통도（RFC）수，종이실현전국능량효솔우화설계。방진결과화분석표명，여전통적AS-MIMO、GSM급SM계통상비，신계통능유효지제고능량효솔，병차개선료계통적오마솔화용량성능，동시계통최종소수적유효사빈통도수일반위2，3혹4개，부합록색통신계통설계원칙。
In order to use energy effectively,energy efficiency (EE)has been one of the main topics of green wireless com-munication research.To improve the energy efficiency of multi-antenna system,a generalized spatial modulation system based on energy efficiency optimization was proposed,named as EE-GSM.The proposed system was based on maximizing energy efficiency criteria,considered the case of large number of transmit antennas,and can be implemented by two steps.Firstly,transmit anten-na selection algorithm was used to decide the optimal transmit antennas subsets.Then,the selected transmit antennas subsets were used to calculate the most appropriate radio frequency chain (RFC)number for the generalized spatial modulation system. The simulation results and analysis demonstrate that the proposed scheme compared with the traditional AS-MIMO (antenna se-lection-multi-input and multi-output)system,GSM system and SM system not only can effectively improve overall system energy efficiency,but also can improve BER and sum-rate capacity performance of GSMsystem,while the final desired number of RFC of the system is generally 2,3 or 4,which is consistent with the principles of green wireless communication.