| Performance analysis of adaptive turbo coded modulation with time delay |
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| 作者姓名： | 伍守豪 宋文涛 罗汉文 |
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| 基金项目： | ThisprojectwassupportedbytheNationalNaturalScienceFoundationofChina(60 0 72 0 2 8)andtheHighTechnologyResearchandDevelopmentProgramofChina (2 0 0 1AA12 10 3 1) |
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| 摘 要： | 1 .INTRODUCTIONIfachannelstateisknownatthetransmitter ,thechannelcapacitycanbeachievedbyadaptingthetransmitpower ,datarate ,andcodingschemerela tivetothisfadingstate1] .Basedontheseresults ,anuncodedadaptivemodulationwasproposedinRef .2 ].Thisadaptivemo…
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Performance analysis of adaptive turbo coded modulation with time delay |
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| Abstract: | The method of data fitting is applied to obtain the BER expression for turbo coded modulation, and a fitting mathematical model is proposed, which resolves the problem that there is no exact BER expression for turbo coded modulation in performance analysis. With the time delay consideration, the performance of BER of adaptive turbo coded modulation is analyzed and simulated. The results show that adaptive turbo coded modulation is very sensitive to time delay. In order to meet the target BER requirement, the total time delay should be less than 0 001/f D. |
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| Keywords: | turbo coded modulation bit error rate time delay |
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