Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization
As a new non-orthogonal multiple-access scheme, SC-FDMA-IDMA combines two technologies of SC-FDMA and IDMA together. This combination makes SC-FDMA-IDMA have the probability to inherit different advantages of these two technologies such as large system capacity, low peak-to-average power ratio (PAPR...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2014-08-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.08.007/ |
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| author | De-liang LIU Qiang HUANG Da-zhuan XU |
| author_facet | De-liang LIU Qiang HUANG Da-zhuan XU |
| author_sort | De-liang LIU |
| collection | DOAJ |
| description | As a new non-orthogonal multiple-access scheme, SC-FDMA-IDMA combines two technologies of SC-FDMA and IDMA together. This combination makes SC-FDMA-IDMA have the probability to inherit different advantages of these two technologies such as large system capacity, low peak-to-average power ratio (PAPR) and simple multiuser de-tection. However, because SC-FDMA for the transmission of different users' signal is a special form of single carrier modulation, the system performance may degrade quickly when the frequency selectivity of channel is serious. So the it-erative block decision feedback equalization (IB-DFE) algorithm applied to the SC-FDMA-IDMA system is derived in order to enhance the ability of anti-frequency selective fading. Simulation results show that comparing with the sin-gle-user SC-FDMA system with high-order modulation, the multiuser SC-FDMA-IDMA system with low-order modula-tion has great performance improvement after adopting the IB-DFE algorithm on condition that these two systems have the same transmission efficiency. |
| format | Article |
| id | doaj-art-9817e15c56254b0a828455f857b9bd47 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2014-08-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-9817e15c56254b0a828455f857b9bd472025-01-14T07:25:14ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2014-08-0135485559683358Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalizationDe-liang LIUQiang HUANGDa-zhuan XUAs a new non-orthogonal multiple-access scheme, SC-FDMA-IDMA combines two technologies of SC-FDMA and IDMA together. This combination makes SC-FDMA-IDMA have the probability to inherit different advantages of these two technologies such as large system capacity, low peak-to-average power ratio (PAPR) and simple multiuser de-tection. However, because SC-FDMA for the transmission of different users' signal is a special form of single carrier modulation, the system performance may degrade quickly when the frequency selectivity of channel is serious. So the it-erative block decision feedback equalization (IB-DFE) algorithm applied to the SC-FDMA-IDMA system is derived in order to enhance the ability of anti-frequency selective fading. Simulation results show that comparing with the sin-gle-user SC-FDMA system with high-order modulation, the multiuser SC-FDMA-IDMA system with low-order modula-tion has great performance improvement after adopting the IB-DFE algorithm on condition that these two systems have the same transmission efficiency.http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.08.007/SC-FDMA-IDMAmultiuser detectionIB-DFE |
| spellingShingle | De-liang LIU Qiang HUANG Da-zhuan XU Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization Tongxin xuebao SC-FDMA-IDMA multiuser detection IB-DFE |
| title | Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization |
| title_full | Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization |
| title_fullStr | Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization |
| title_full_unstemmed | Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization |
| title_short | Non-orthogonal multiple-access system SC-FDMA-IDMA with iterative block equalization |
| title_sort | non orthogonal multiple access system sc fdma idma with iterative block equalization |
| topic | SC-FDMA-IDMA multiuser detection IB-DFE |
| url | http://www.joconline.com.cn/zh/article/doi/10.3969/j.issn.1000-436x.2014.08.007/ |
| work_keys_str_mv | AT deliangliu nonorthogonalmultipleaccesssystemscfdmaidmawithiterativeblockequalization AT qianghuang nonorthogonalmultipleaccesssystemscfdmaidmawithiterativeblockequalization AT dazhuanxu nonorthogonalmultipleaccesssystemscfdmaidmawithiterativeblockequalization |