计算机科学 ›› 2019, Vol. 46 ›› Issue (7): 56-60.doi: 10.11896/j.issn.1002-137X.2019.07.008
冀保峰1,2,3,王一丹1,邢冰冰1,李玉琦1,高宏峰1,韩瑽琤2
JI Bao-feng1,2,3,WANG Yi-dan1,XING Bing-bing1,LI Yu-qi1,GAO Hong-feng1,HAN Cong-cheng2
摘要: 超密集网络通过小小区的密集部署提升了空间的复用增益,成为解决未来5 G数据流量1 000倍及用户体验速率10~100倍提升的有效方案。然而,小小区密集部署带来的干扰问题以及小基站的较小覆盖范围导致的信号衰落,会减小网络容量并降低用户体验。为了同时考虑未来5G超密集组网“覆盖”和“容量”的问题,提出了基于分层多跳物理层网络编码的吞吐量增强方法。该方法利用超密集网络多节点的异构分层特征,结合多跳物理层网络编码的高频谱效率特性,在无需源节点和终端节点直达链路的情况下,有效提升了超密集网络的吞吐量,节省了源到终端节点的时隙开销,且降低了系统的干扰。最后,通过仿真验证了所提方案的有效性和正确性,相比传统方案有效提升了系统性能。
中图分类号:
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