| 衰落信道下Turbo网格编码调制在图像传输中的性能研究 |
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| 引用本文： | 白智全, 袁东风, 李长春, 徐文进. 衰落信道下Turbo网格编码调制在图像传输中的性能研究[J]. 电子与信息学报, 2004, 26(6): 995-999. |
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| 作者姓名： | 白智全 袁东风 李长春 徐文进 |
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| 作者单位： | 山东大学信息科学与工程学院,济南,250100;山东大学信息科学与工程学院,济南,250100;东南大学移动通信国家重点实验室,南京,210096 |
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| 基金项目： | 国家自然科学基金,教育部高校骨干教师资助计划,国家重点实验室基金,国家重点实验室基金,山东省自然科学基金,69872020,65,V-99004,A-0102,Y2000G14,,,,, |
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| 摘 要： | 基于Turbo码和网格编码调制的特点,该文分析了TTCM的具体编译码方法,并分析比较了TTCM在8PSK调制下结合两种典型映射方案UP(Ungerboeck Partitioning),BP(BlockPartitioning)在Rayleigh信道中用于静态图像传输时的性能,给出了计算机仿真结果和评价图像传输质量的峰值信噪比(PSNR).
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| 关 键 词： | Turbo码 Turbo码网格编码调制 平坦Rayleigh衰落信道 集分割 |
| 文章编号： | 1009-5896(2004)06-0995-05 |
| 收稿时间： | 2003-01-17 |
| 修稿时间： | 2003-01-17 |
Research on the Performance of Turbo Trellis Coded Modulation in Image Transmission over Flat Rayleigh Fading Channels |
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| Bai Zhi-quan, Yuan Dong-feng, Li Chang-chun, Xu Wen-jin. Research on the Performance of Turbo Trellis Coded Modulation in Image Transmission over Flat Rayleigh Fading Channels[J]. Journal of Electronics & Information Technology, 2004, 26(6): 995-999. |
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| Authors: | Bai Zhi-quan Yuan Dong-feng Li Chang-chun Xu Wen-jin |
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| Affiliation: | School of Information Science and Engineering, Shandong University, Jinan 250100, China;State Key Lab. on Mobile Communications, Southeast University, Nanjing 210096, China |
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| Abstract: | In this paper, based on the characteristics of Turbo codes and Trellis Coded Modulation (TCM), an improved method Turbo Trellis Coded Modulation (TTCM) is pre-sented and analyzed over flat Rayleigh fading channels in image transmission with two typical mapping strategies. The selection of different mapping strategies of TTCM in Rayleigh fad-ing channels for image transmission is analyzed and investigated. Furthermore, taking 8PSK modulation of TTCM as the example, two different mapping strategies are compared. Com-puter simulation results and PSNR that can evaluate the quality of the transmitted image are given.
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| Keywords: | Turbo codes Turbo Trellis Coded Modulation(TTCM) channels')" >Flat Rayleigh fading
channels Set partitioning |
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