This paper proposes a new channel access procedure to mitigate the channel access contention in next generation of Wireless Local-Area Networks (WLANs) by allowing cooperation among devices belonging to same network, while maintaining high flexibility in terms of how each device may contend the medium. After introducing the details of the proposed procedure, which is here referred to as sharing-based protocol, an analytical analysis is provided to compare it with the two state-of-art protocols currently adopted in IEEE 802.11 standard, i.e, Enhanced Distributed Channel Access (EDCA)-based and trigger-based protocol. In this regards, closed form expressions are derived to evaluate the success probability of channel access for each protocol. In order to show the merit of the proposed procedure, a comprehensive system level analysis is also provided, which highlights that the proposed procedure outperforms the two state-of-art protocols in terms of mitigating the End-to-End (E2E) delay and allowing a better spectrum utilization by reducing the overall congestion in the system.

翻译：本文提出了一种新的信道接入机制，旨在通过允许同一网络内设备间的协作来缓解下一代无线局域网（WLANs）中的信道接入竞争，同时保持各设备竞争介质的灵活性。在详细介绍所提出的机制（本文称之为基于共享的协议）后，我们通过解析分析将其与当前IEEE 802.11标准中采用的两种先进协议——即基于增强型分布式信道接入（EDCA）的协议和基于触发的协议——进行比较。为此，我们推导了闭式表达式以评估每种协议的信道接入成功率。为了展示所提机制的优势，本文还提供了全面的系统级分析，结果表明所提机制在降低端到端（E2E）时延和通过减少系统整体拥塞以提高频谱利用率方面均优于两种先进协议。