高吞吐量低时延的太赫兹无线个域网MAC协议

发布时间：2018-04-17 06:49

本文选题：太赫兹 + 无线个域网络　；参考：《电子技术应用》2017年01期

【摘要】：针对现有太赫兹无线个域网MAC协议存在的基于动态均衡思想的网络不稳定、不合理的竞争窗口导致退避时间过长,以及所分配CTA长度大于节点的时隙请求量时会导致时隙剩余3个问题,提出了一种高吞吐量低时延的太赫兹无线个域网MAC协议——HTLL-MAC(High Throughput and Low Latency MAC protocol)。HTLL-MAC协议通过基于动态均衡思想的接入机制提高网络稳定性,引入动态更改重传竞争窗口方法缩短了退避所需时间,并且启用CTA剩余时隙机制充分利用剩余时隙,从而达到增加网络吞吐量、降低数据传输时延的效果。理论分析验证了HTLL-MAC协议的有效性。仿真结果表明,相较于IEEE 802.15.3c和HTLD-MAC的MAC层,吞吐量提高了6.15%,数据平均时延降低了32.53%。
[Abstract]:The existing terahertz wireless personal area network (MAC) protocol is unstable based on the idea of dynamic equalization, and the unreasonable competition window leads to too long Backoff time.And when the allocated CTA length is larger than the number of slot requests of the node, it will cause the remaining 3 problems of the slot.A terahertz wireless personal area network (MAC) protocol with high throughput and low delay is proposed. The HTLL-MACU High Throughput and Low Latency MAC protocol).HTLL-MAC protocol improves network stability by means of an access mechanism based on dynamic equalization.The dynamic change retransmission contention window method is introduced to shorten the time required for Backoff and enable the CTA residual slot mechanism to make full use of the remaining time slot, so as to increase the network throughput and reduce the data transmission delay.Theoretical analysis verifies the validity of HTLL-MAC protocol.The simulation results show that compared with the MAC layer of IEEE 802.15.3c and HTLD-MAC, the throughput is increased by 6.15 and the average delay of data is reduced by 32.53.
【作者单位】：重庆邮电大学移动通信重点实验室;
【基金】：国家自然科学基金资助项目(61379159) 重庆市基础与前沿研究计划项目(cstc2015jcyj BX0085)
【分类号】：TN915.04

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