| 基于CDMA扩频码的无线组播协议的仿真 |
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| 引用本文： | 李精华,姜胜明,李兴富.基于CDMA扩频码的无线组播协议的仿真[J].计算机与网络,2009,35(3):109-111. |
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| 作者姓名： | 李精华 姜胜明 李兴富 |
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| 作者单位： | [1]华南理工大学电子与信息学院,广东广州510640 [2]桂林航天工业高等专科学校电子工程系,广西桂林541004 |
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| 基金项目： | 国家高新技术研究院发展计划（863计划）--多跳无线组织网络协议体系设计与跨层优化 |
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| 摘 要： | 本文提出了一种基于CDMA扩频码的组播MAC协议，该协议对不同组播的数据使用不同的CDMA扩频码来传输，同时扩展了RTS控制帧、CTS控制帧和ACK控制帧的格式，使其能够为组播数据提供保障机制，以保证组播数据的可靠传递。仿真结果证明，相比于IEEE802．11MAC协议，该协议在网络吞吐量方面有了不错的提高，延迟方面也改进不少。
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| 关 键 词： | CDMA扩频码 无线自组网 组播 MAC协议 MMPC协议 |
Simulation of Wireless Multicast Protocol Based on CDMA Spreading Codes |
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| Affiliation: | LI Jing-hua,JIANG Sheng-ming,LI Xing-fu(1.School of Electronic and Information Engineering, South China University of Technology, Guangzhou Guangdong 510640, China;2.Department of Electronic Engineering, Guilin College of Aerospace Technology,Guilin Guangxi 541004, China) |
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| Abstract: | A multicast MAC protocol based on CDMA codes is proposed in this paper to provide highly reliable multicast. Different mulficast data are transmitted with different CDMA codes in our protocol. RTS control frame, CTS control frame and ACK control frame are modified to provide reliable mechanism for the multicast data. The simulation results show that our protocol is able to improve the network performances in terms of throughput and delay in comparison with the original IEEE 802.11 MAC protocol. |
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| Keywords: | CDMA spread-spectrum code ad hoc multicast medium access control multicast MAC protocol based on CDMA |
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