{"title":"利用训练设计增强空时分组编码MIMO系统的性能","authors":"K. Ahmed, M. Patwary, Hongnian Yu","doi":"10.1109/ICELCE.2010.5700790","DOIUrl":null,"url":null,"abstract":"This paper considers the performance enhancement of orthogonal space time block coded (OSTBC) multiple-input multiple-output system based on an optimal training strategy. Pairwise error probability (PEP) based performance analysis provides us the training design tools as well as a generic expression for the performance improvement due to optimal training compared to the conventional case for OSTBC system equipped with any number of transmit and receive antennas and any modulation schemes, e.g., M-array PSK, MSK and QAM. It is observed that the linear processing in the receiver, the most attractive feature of OSTBC, although destroys the orthogonality in the presence of channel estimation error (CEE), does not reduce diversity, but, causes performance penalty as a loss of SNR due to training. This loss of performance is quantified analytically and minimized by optimal allocation of power between training and data symbols.","PeriodicalId":202650,"journal":{"name":"International Conference on Electrical & Computer Engineering (ICECE 2010)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance enhancement of space time block coded MIMO systems using training design\",\"authors\":\"K. Ahmed, M. Patwary, Hongnian Yu\",\"doi\":\"10.1109/ICELCE.2010.5700790\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper considers the performance enhancement of orthogonal space time block coded (OSTBC) multiple-input multiple-output system based on an optimal training strategy. Pairwise error probability (PEP) based performance analysis provides us the training design tools as well as a generic expression for the performance improvement due to optimal training compared to the conventional case for OSTBC system equipped with any number of transmit and receive antennas and any modulation schemes, e.g., M-array PSK, MSK and QAM. It is observed that the linear processing in the receiver, the most attractive feature of OSTBC, although destroys the orthogonality in the presence of channel estimation error (CEE), does not reduce diversity, but, causes performance penalty as a loss of SNR due to training. This loss of performance is quantified analytically and minimized by optimal allocation of power between training and data symbols.\",\"PeriodicalId\":202650,\"journal\":{\"name\":\"International Conference on Electrical & Computer Engineering (ICECE 2010)\",\"volume\":\"9 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Electrical & Computer Engineering (ICECE 2010)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICELCE.2010.5700790\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Electrical & Computer Engineering (ICECE 2010)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICELCE.2010.5700790","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance enhancement of space time block coded MIMO systems using training design
This paper considers the performance enhancement of orthogonal space time block coded (OSTBC) multiple-input multiple-output system based on an optimal training strategy. Pairwise error probability (PEP) based performance analysis provides us the training design tools as well as a generic expression for the performance improvement due to optimal training compared to the conventional case for OSTBC system equipped with any number of transmit and receive antennas and any modulation schemes, e.g., M-array PSK, MSK and QAM. It is observed that the linear processing in the receiver, the most attractive feature of OSTBC, although destroys the orthogonality in the presence of channel estimation error (CEE), does not reduce diversity, but, causes performance penalty as a loss of SNR due to training. This loss of performance is quantified analytically and minimized by optimal allocation of power between training and data symbols.