Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system
In order to reduce the computational complexity of conventional selective mapping (SLM) algorithm in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system，more candidate sequence sets will be produced.With different peak to average power ratio (PAPR) by time do...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-04-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015088/ |
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| _version_ | 1841539629316046848 |
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| author | Wu-jun HU Lin YANG |
| author_facet | Wu-jun HU Lin YANG |
| author_sort | Wu-jun HU |
| collection | DOAJ |
| description | In order to reduce the computational complexity of conventional selective mapping (SLM) algorithm in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system，more candidate sequence sets will be produced.With different peak to average power ratio (PAPR) by time domain cyclic shift and signal combination between the antennas.The receiving part can restore the rotation signals by using the sequence selection order of the transmitting part and also the original signals by comparing the inversed rotation sequence with its nearest constellation points.The simulation results show that the proposed method can effectively reduce the PAPR of OFDM signals.In addition，compared with the conventional SLM algorithm，the proposed method can reduce the algorithm computation complexity significantly and obtain similar bit error rate (BER) performance. |
| format | Article |
| id | doaj-art-078ae5cfa86d41acab86cb1fc29d3b43 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-04-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-078ae5cfa86d41acab86cb1fc29d3b432025-01-14T06:46:15ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-04-013617117759692639Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM systemWu-jun HULin YANGIn order to reduce the computational complexity of conventional selective mapping (SLM) algorithm in multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system，more candidate sequence sets will be produced.With different peak to average power ratio (PAPR) by time domain cyclic shift and signal combination between the antennas.The receiving part can restore the rotation signals by using the sequence selection order of the transmitting part and also the original signals by comparing the inversed rotation sequence with its nearest constellation points.The simulation results show that the proposed method can effectively reduce the PAPR of OFDM signals.In addition，compared with the conventional SLM algorithm，the proposed method can reduce the algorithm computation complexity significantly and obtain similar bit error rate (BER) performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015088/MIMO-OFDMSLMPAPRcyclic shiftsignal combination |
| spellingShingle | Wu-jun HU Lin YANG Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system Tongxin xuebao MIMO-OFDM SLM PAPR cyclic shift signal combination |
| title | Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system |
| title_full | Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system |
| title_fullStr | Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system |
| title_full_unstemmed | Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system |
| title_short | Modified SLM algorithm based on cyclic shift and signal combination in MIMO-OFDM system |
| title_sort | modified slm algorithm based on cyclic shift and signal combination in mimo ofdm system |
| topic | MIMO-OFDM SLM PAPR cyclic shift signal combination |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015088/ |
| work_keys_str_mv | AT wujunhu modifiedslmalgorithmbasedoncyclicshiftandsignalcombinationinmimoofdmsystem AT linyang modifiedslmalgorithmbasedoncyclicshiftandsignalcombinationinmimoofdmsystem |