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Enhanced registration procedure with NAV for mitigated contentions in M2M communications

机译：使用NAV增强了注册过程，以减轻M2M通信中的争用

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摘要

In Machine-to-Machine (M2M) communications based on IEEE 802.11ah protocol, a single access point (AP) should support up to 8000 stations within a coverage range of 1 Km using relatively low sub-1GHz wireless communication channel. The registrations of a large number of stations at network initialization or at any reboot of AP after a power failure, usually take more than 1 minute that prohibits agile cognitive sensing and adaptive control. In this paper, we propose an enhanced registration procedure for M2M communications based on IEEE 802.11ah with mitigated contention. In the proposed registration procedure, the authentication request/response and association request/response messages are extended to carry network allocation vector (NAV) to allocate the communication channel for combined processing of authentication and association to minimize contentions generated by massive wireless channel accesses from up to 8000 stations. We also analyze the optimal configuration of parameters of authentication control threshold (ACT)-based contention mitigations in registrations. The simulation experiments show that the proposed registration procedure with combined authentication and association reduces more than 15% of registration time for 8000 stations compared to currently existing solutions.
机译：在基于IEEE 802.11ah协议的机器对机器（M2M）通信中，单个接入点（AP）应该使用相对较低的1GHz以下无线通信信道在1 Km的覆盖范围内支持多达8000个站。在网络初始化或断电后AP重新启动时，大量站点的注册通常需要1分钟以上的时间，这会禁止进行敏捷的认知感知和自适应控制。在本文中，我们提出了一种基于缓解争用的，基于IEEE 802.11ah的增强型M2M通信注册过程。在建议的注册过程中，身份验证请求/响应和关联请求/响应消息被扩展为携带网络分配矢量（NAV），以分配用于身份验证和关联组合处理的通信信道，以最大程度地减少大规模无线信道访问产生的竞争到8000个车站。我们还分析了注册中基于身份验证控制阈值（ACT）的竞争缓解参数的最佳配置。仿真实验表明，与现有解决方案相比，将认证和关联相结合的拟议注册程序可减少8000个站的注册时间超过15％。

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