Scheduling and Channel Access at the MAC layer of the IoT network plays a pivotal role in enhancing the performance of IoT networks. State-of-the-art Omni-directional antenna based application data transmission has relatively less achievable throughput in comparison with directional antenna based scheduling protocols. To enhance the performance of the IoT networks, this paper propose a distributed one-hop scheduling algorithm called Directional Scheduling protocol for constrained deterministic 6TiSCH-IoT network. With this, in-creased number of IoT nodes can have concurrent application data transmission with efficient spatial reuse. This in-turn results in higher number of cell allocation to the one-hop IoT nodes during data transmission. The proposed algorithm makes use of through directional transmissions avoids head of line blocking.

翻译：调度与信道接入在物联网网络的MAC层中扮演着提升网络性能的关键角色。与基于全向天线的调度协议相比，现有基于全向天线的应用数据传输在可实现的吞吐量方面相对较低。为提升物联网网络性能，本文提出一种分布式单跳调度算法——面向约束确定性6TiSCH-IoT网络的定向调度协议。通过该协议，更多物联网节点可实现并发应用数据传输，并具备高效的空间复用能力。这进而使得数据传周期中能够为单跳物联网节点分配更多的时隙单元。所提出的算法利用定向传输机制，有效避免了队头阻塞问题。