| 韩会梅,王康琪,卢为党.面向MTC的新型多信道ALOHA随机接入方案[J].高技术通讯(中文),2025,35(4):385~392 |
| 面向MTC的新型多信道ALOHA随机接入方案 |
| A novel multi-channel ALOHA random access scheme for machine type communication |
| |
| DOI： |
| 中文关键词: 机器类通信； 多信道ALOHA； 随机接入； 接入等级限制 |
| 英文关键词: machine type communication, multi-channel ALOHA, random access, access class barring |
| 基金项目: |
| 作者 | 单位 | | 韩会梅 | （浙江工业大学信息工程学院杭州 310023） | | 王康琪 | | | 卢为党 | |
|
| 摘要点击次数: 7 |
| 全文下载次数: 5 |
| 中文摘要: |
| 针对机器类通信（machine type communication，MTC）中海量用户接入网络造成的低成功接入概率问题，本文提出了一种面向MTC的新型多信道ALOHA(additive links on-line Hawaii area)随机接入方案。该方案分为导频传输阶段和数据传输阶段：导频传输阶段允许一个信道被多个用户使用，而数据传输阶段根据用户的不同接入时延需求采用不同的数据传输策略，并且采用接入等级限制对数据传输的用户进行拥塞控制，进而提升用户成功接入概率。仿真结果表明，与现有多信道ALOHA随机接入方案相比，该方案能够极大地提升时延敏感用户成功接入概率和总用户成功接入概率。 |
| 英文摘要: |
| To solve the problem of low successful access probability caused by the massive access in machine type communication (MTC), a novel multi-channel ALOHA random access scheme for MTC is proposed. The proposed scheme consists of pilot transmission and data transmission stages, where multiple users share the same channel in the pilot transmission stage and users adopt different data transmission strategies based on their access delay requirements. Furthermore, we utilize access class barring strategy to relieve congestion in the data transmission stage, thereby enhancing the successful access probabilities of users. Simulation results show that, compared with existing multi-channel ALOHA random access schemes, the proposed scheme can significantly improve the successful access probabilities of delay-sensitive users and all users. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
