Multilevel transmission scheme for wireless broadcasting system

SUN Xiang-tao1; GONG Ke2

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Multilevel transmission scheme for wireless broadcasting system

更新时间：2024-10-14

- Multilevel transmission scheme for wireless broadcasting system
- Vol. 30, Issue 7, Pages: 106-110(2009)
- 作者机构：
  
  1. 清华大学电子工程系微波与数字通信技术国家重点实验室
  2. 天津大学电子信息工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN931
- Published：2009
- 稿件说明：
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SUN Xiang-tao1, GONG Ke2. Multilevel transmission scheme for wireless broadcasting system[J]. 2009, 30(7): 106-110.
DOI：

SUN Xiang-tao1, GONG Ke2. Multilevel transmission scheme for wireless broadcasting system[J]. 2009, 30(7): 106-110. DOI：

摘要

为了充分利用信道的传输能力并满足不同用户和不同接收设备的要求

提出了一种多级传输的方案。该方案使用多级编码和多分辨率调制技术把广播数据分成多个优先级

为不同优先级的数据提供不同的差错保护。解码时采用多级译码的方法

使得用户可以根据自身的信道质量或者接收设备的能力

获得不同的数据传输率。仿真结果表明

该方案在AWGN和多径信道下都具有很好的性能。

Abstract

A multilevel transmission scheme was developed to take full advantage of the transmission channel capacity and meet the requirements of different users and different types of receiving equipments.In this scheme

broadcasting datas were divided into different levels of error protection and transmission rate by using multilevel coding and multi-resolution modulation techniques.Multistage decoder was adopted

which allowed user to receive data at different rate according to its transmission channel quality or its receiver ability.Simulation results show this scheme has good performance over both AWGN channel and multipath channel.

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