Hybrid ARQ schemes employing coded modulation and sequence combining
Hybrid ARQ schemes employing coded modulation and sequence combining
复制标题
采用编码调制和序列组合的混合 ARQ 方案
DOI：
10.1109/26.293675
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
R. Deng
中科院分区：
文献类型：
--
作者：
R. Deng
在本文中，我们提出并分析了两种采用带宽高效编码调制和编码序列组合的混合自动重传请求（ARQ）方案。第一种方案采用网格编码调制（TCM）来控制信道噪声；而在第二种方案中，采用级联编码调制。级联编码调制由里德所罗门(RS)外码和块编码调制(BCM)内码级联形成。在这两种方案中，编码调制解码器通过执行序列组合和软判决最大似然解码，充分利用与给定信息消息相对应的所有接收序列中可用的信息。通过分析和计算机模拟表明，两种方案都能够在较宽的信噪比范围内提供高吞吐量效率。该方案适用于需要高吞吐量和高可靠性的卫星通信链路上的大文件传输。
In this paper, we propose and analyze two hybrid automatic-repeat-request (ARQ) schemes employing bandwidth efficient coded modulation and coded sequence combining. In the first scheme, a trellis-coded modulation (TCM) is used to control channel noise; while in the second scheme a concatenated coded modulation is employed. The concatenated coded modulation is formed by cascading a ReedSolomon (RS) outer code and a block coded modulation (BCM) inner code. In both schemes, the coded modulation decoder, by performing sequence com- bining and soft-decision maximum likelihood decoding, makes full use of the information available in all received sequences corresponding to a given information message. It is shown, by means of analysis as well as computer simulations, that both schemes are capable of providing high throughput efficiencies over a wide range of signal-to-noise ratios. The schemes are suitable for large file transfers over satellite communication links where high throughput and high reliability are required.
影响因子：
2.5
作者：
UNGERBOECK, G
通讯作者：
UNGERBOECK, G