Time slots are a valuable channel resource in the data link network with time division multiple access architecture. The need for finding a secure and efficient way to meet the requirements of large access capacity, differentiated access, maximum utilization of time slot resource and strong anti-eavesdropping ability in data link networks is well motivated.In this paper, a control sequence-based hierarchical access control scheme is proposed, which not only achieves differentiated time slots allocation for the different needs and levels of nodes, but also enhances randomness and anti-interception performance in data link networks.Based on the scheme, a new theoretical bound is derived to characterize parameter relationships for designing optimal hierarchical control sequence(HCS) set. Moreover, two flexible classes of optimal hierarchical control sequence sets are constructed.By our construction, the terminal user in the data link can access hierarchically and randomly and transmit data packets during its own hopping time slots of the successive frames to prevent eavesdropping while maintaining high throughput.

翻译：时隙是时分多址架构数据链网络中的宝贵信道资源。为满足数据链网络对大规模接入容量、差异化接入、时隙资源最大化利用以及强抗窃听能力的需求，本文提出了一种基于控制序列的分层接入控制方案。该方案不仅能针对节点不同需求和层级实现差异化时隙分配，还能增强数据链网络的随机性与抗截获性能。基于该方案，推导出了新的理论界，用于刻画最优分层控制序列集设计的参数关系。此外，本文构造了两类灵活的最优分层控制序列集。通过本构造，数据链中的终端用户可在连续帧的自主跳随时隙中实现分层随机接入与数据包传输，在维持高吞吐量的同时有效防止窃听。