太赫兹无线局域网媒体访问控制协议的优化设计

发布时间：2019-01-08 15:07

【摘要】：针对太赫兹无线局域网络,为满足网络中对数据传输性能的要求,提出一种媒体访问控制(medium access control,MAC)层协议超帧结构,在新超帧结构的基础上,进一步提出3种优化机制,分别是自适应动态调整竞争接入时段的长度、合并申请量的免申请预分配时隙和删除冗余控制字段。通过采用OPNET仿真软件,对新提出的优化后的MAC层协议进行了仿真验证,并将仿真结果与现有的能够应用于太赫兹超高速无线网络的高吞吐量低时延MAC(high-throughput low-delay MAC,HLMAC)协议和IEEE 802.15.3c标准协议进行了比较。仿真结果表明,所提的MAC协议相较于HLMAC协议和IEEE 802.15.3c标准协议在网络吞吐量方面的性能得到了约3.45%和11.11%的优化提升,在平均接入时延方面的性能提升了约28%和50%,而在数据帧的传送成功率方面的性能也得到了约3.3%和10.6%的提升效果。
[Abstract]:For terahertz wireless local area network, in order to meet the requirement of data transmission performance in the network, a media access control (medium access control,MAC) layer protocol superframe structure is proposed. On the basis of the new superframe structure, three optimization mechanisms are proposed. They are adaptive dynamic adjustment of the length of the competitive access time period, merging the number of applications without pre-allocation time slots and deleting redundant control fields. By using OPNET simulation software, the newly proposed optimized MAC layer protocol is simulated and verified, and the simulation results are compared with the existing MAC (high-throughput low-delay MAC,) with high throughput and low delay which can be applied to terahertz ultra-high speed wireless networks. HLMAC) protocol and IEEE 802.15.3c standard protocol are compared. Simulation results show that compared with HLMAC and IEEE 802.15.3c, the performance of the proposed MAC protocol is improved by about 3.45% and 11.11%, respectively. The performance of average access delay is improved by about 28% and 50%, and the performance of data frame transmission success rate is improved by about 3.3% and 10.6%.
【作者单位】：中国工程物理研究院激光聚变研究中心;重庆邮电大学移动通信技术重庆市重点实验室;
【基金】：中物院-川大协同创新联合基金(XTCT2014010)资助课题
【分类号】：TN925.93

【相似文献】