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：物联网网络MAC层的调度与信道接入对提升网络性能具有关键作用。相比基于全向天线的应用数据传输方案，基于定向天线的调度协议能够实现更高的吞吐量。为提升物联网网络性能，本文提出一种适用于受限确定性6TiSCH-IoT网络的分布式单跳调度算法——定向调度协议。该协议通过定向传输机制实现高效空间复用，使更多物联网节点能够并发传输应用数据，从而在数据传输期间为单跳物联网节点分配更多时隙资源。所提算法利用定向传输有效避免了队头阻塞问题。