{"title":"多sop环境下基于MB/spl I.bar/OFDM的超宽带系统的性能增强","authors":"Peng Gong, Peng Xue, Jae Sung Lee, D. Kim","doi":"10.1109/ISWPC.2006.1613569","DOIUrl":null,"url":null,"abstract":"In this paper, we propose a new transmission scheme to support multiple simultaneously operating piconets (SOPs) in an ultra wideband (UWB) system based on multi-band orthogonal frequency division multiplexing (MB/spl I.bar/OFDM), where the code division technique is combined with the MB/spl I.bar/OFDM. When there are 2 or 3 SOPs, the collision between different piconets is increased and the average probabilities of symbol collision increase up to nearly 55.7% and 70.7%, respectively. Hence, the previous scheme using symbol repeater and erasure can't effectively reduce the co-channel interference (CCI). We propose to use the MC/spl I.bar/CDMA to mitigate the CCI from 2 and 3 SOPs. Our simulation results demonstrate that the proposed scheme is effective in multiple SOPs.","PeriodicalId":145728,"journal":{"name":"2006 1st International Symposium on Wireless Pervasive Computing","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2006-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Performance enhancement of an MB/spl I.bar/OFDM based UWB system in multiple SOPs environments\",\"authors\":\"Peng Gong, Peng Xue, Jae Sung Lee, D. Kim\",\"doi\":\"10.1109/ISWPC.2006.1613569\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we propose a new transmission scheme to support multiple simultaneously operating piconets (SOPs) in an ultra wideband (UWB) system based on multi-band orthogonal frequency division multiplexing (MB/spl I.bar/OFDM), where the code division technique is combined with the MB/spl I.bar/OFDM. When there are 2 or 3 SOPs, the collision between different piconets is increased and the average probabilities of symbol collision increase up to nearly 55.7% and 70.7%, respectively. Hence, the previous scheme using symbol repeater and erasure can't effectively reduce the co-channel interference (CCI). We propose to use the MC/spl I.bar/CDMA to mitigate the CCI from 2 and 3 SOPs. Our simulation results demonstrate that the proposed scheme is effective in multiple SOPs.\",\"PeriodicalId\":145728,\"journal\":{\"name\":\"2006 1st International Symposium on Wireless Pervasive Computing\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-04-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 1st International Symposium on Wireless Pervasive Computing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISWPC.2006.1613569\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 1st International Symposium on Wireless Pervasive Computing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISWPC.2006.1613569","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance enhancement of an MB/spl I.bar/OFDM based UWB system in multiple SOPs environments
In this paper, we propose a new transmission scheme to support multiple simultaneously operating piconets (SOPs) in an ultra wideband (UWB) system based on multi-band orthogonal frequency division multiplexing (MB/spl I.bar/OFDM), where the code division technique is combined with the MB/spl I.bar/OFDM. When there are 2 or 3 SOPs, the collision between different piconets is increased and the average probabilities of symbol collision increase up to nearly 55.7% and 70.7%, respectively. Hence, the previous scheme using symbol repeater and erasure can't effectively reduce the co-channel interference (CCI). We propose to use the MC/spl I.bar/CDMA to mitigate the CCI from 2 and 3 SOPs. Our simulation results demonstrate that the proposed scheme is effective in multiple SOPs.