Throughput Study of Cooperative Diversity System Based on Truncated ARQ Protocol ( Department of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou,Guangdong 510275,China; Key Laboratory of Digital Life,Ministry of Education,Guangzhou,Guangdong 510275,China)

ZHANG Guang-chi; TANG Dong; LI Guang-ping; ZHANG Lin; QIN Jia-yin

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Throughput Study of Cooperative Diversity System Based on Truncated ARQ Protocol ( Department of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou,Guangdong 510275,China; Key Laboratory of Digital Life,Ministry of Education,Guangzhou,Guangdong 510275,China)

更新时间：2025-07-16

- Throughput Study of Cooperative Diversity System Based on Truncated ARQ Protocol ( Department of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou,Guangdong 510275,China; Key Laboratory of Digital Life,Ministry of Education,Guangzhou,Guangdong 510275,China)
- Acta Electronica Sinica Vol. 35, Issue 8, Pages: 1603-1607(2007)
- 作者机构：
  
  1. 中山大学电子与通信工程系,广东,广州,510275
  2. 中山大学数字家庭教育部重点实验室,广东,广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN92
- Published：2007
- 稿件说明：
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ZHANG Guang-chi, TANG Dong, LI Guang-ping, et al. Throughput Study of Cooperative Diversity System Based on Truncated ARQ Protocol ( Department of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou,Guangdong 510275,China; Key Laboratory of Digital Life,Ministry of Education,Guangzhou,Guangdong 510275,China)[J]. Acta Electronica Sinica, 2007, 35(8): 1603-1607.
DOI：

ZHANG Guang-chi, TANG Dong, LI Guang-ping, et al. Throughput Study of Cooperative Diversity System Based on Truncated ARQ Protocol ( Department of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou,Guangdong 510275,China; Key Laboratory of Digital Life,Ministry of Education,Guangzhou,Guangdong 510275,China)[J]. Acta Electronica Sinica, 2007, 35(8): 1603-1607. DOI：

摘要

研究协作分集通信系统的跨层设计使系统吞吐量最大化.首先推导基于截短ARQ协议的协作分集和两跳系统的吞吐量理论表达式

揭示数据包长度和调制方式对系统吞吐量的影响

在此基础上用自适应技术优化系统性能

采用连续二维优化求出了吞吐量的最大值

进而提出了实用的二维离散吞吐量优化算法

该算法的优化结果与吞吐量最大值相差很小

最后提出了计算量更小的一维离散优化算法

且其吞吐量性能损失也很小.

Abstract

In this paper

the throughput of a cooperative diversity communication system based on truncated ARQ protocol is studied.The theoretical throughput expressions of cooperative diversity and two-hop systems are derived.According to the expressions

throughput is affected by the MAC layer parameter data packet length

and physical layer parameter modulation level

so cross-layer design can be used for throughput optimization.By assuming that

and

are continuous variables

the maximum throughput is evaluated by two-dimension (2-D) continuous optimization algorithms.Then a 2-D discrete optimization algorithm is proposed to find the maximum throughput

which is practi

cal for applications.Furthermore

with the knowledge of signal-to-noise ratio (SNR) information

the 2-D algorithm is simplified into a 1-D algorithm.The 1-D discrete algorithm has only a little performance loss compared with the 2-D algorithm.

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