电讯技术
電訊技術
전신기술
Telecommunication Engineering
2015年
10期
1087-1093
,共7页
多输入多输出%协作通信%空间调制%选择合并%功率分配
多輸入多輸齣%協作通信%空間調製%選擇閤併%功率分配
다수입다수출%협작통신%공간조제%선택합병%공솔분배
multiple-input multiple-output%cooperative communication%spatial modulation%selection com-bining%power allocation
在瑞利衰落信道下研究了采用前向译码转发协议的三节点协作模型,分析了中继分布大规模天线阵列时系统的可靠性能. 为了有效地降低系统复杂度,同时又能获得大规模天线带来的分集增益,给出了中继选择合并( SC)与天线选择空间调制( SM)相结合的组合传输方案. 为了进一步提高可靠性能,研究了SC/SM组合方案如何通过功率分配优化其误比特率性能. 仿真分析表明,大规模中继SC/SM方案的功率分配能够有效改善系统的误比特率性能.
在瑞利衰落信道下研究瞭採用前嚮譯碼轉髮協議的三節點協作模型,分析瞭中繼分佈大規模天線陣列時繫統的可靠性能. 為瞭有效地降低繫統複雜度,同時又能穫得大規模天線帶來的分集增益,給齣瞭中繼選擇閤併( SC)與天線選擇空間調製( SM)相結閤的組閤傳輸方案. 為瞭進一步提高可靠性能,研究瞭SC/SM組閤方案如何通過功率分配優化其誤比特率性能. 倣真分析錶明,大規模中繼SC/SM方案的功率分配能夠有效改善繫統的誤比特率性能.
재서리쇠락신도하연구료채용전향역마전발협의적삼절점협작모형,분석료중계분포대규모천선진렬시계통적가고성능. 위료유효지강저계통복잡도,동시우능획득대규모천선대래적분집증익,급출료중계선택합병( SC)여천선선택공간조제( SM)상결합적조합전수방안. 위료진일보제고가고성능,연구료SC/SM조합방안여하통과공솔분배우화기오비특솔성능. 방진분석표명,대규모중계SC/SM방안적공솔분배능구유효개선계통적오비특솔성능.
The transmission system reliability performance under the decode-and-forward( DF) protocol is investigated in the case of three-node collaboration model over the Rayleigh fading channel,and the system reliability performance is analyzed by setting up very large antenna arrays on the relay node. In order to ef-fectively reduce the system complexity and obtain the diversity gain from the large-scale antennas,the com-bination transmission mode combined with selection combining ( SC ) at the relay and spatial modulation ( SM) with antenna selection is given. For further improve the reliability performance particular concerns are drawn on how to optimize the system bit error rate performance through self-adaptive power allocation in the SC/SM system schemes. Simulative experiments show the power allocation of the SC/SM scheme with very large antenna arrays on the relay node can effectively improve the bit error rate.
