计算机科学 ›› 2022, Vol. 49 ›› Issue (5): 279-286.doi: 10.11896/jsjkx.210400239
沈家芳, 钱丽萍, 杨超
SHEN Jia-fang, QIAN Li-ping, YANG Chao
摘要: 随着窄带物联网技术的蓬勃发展,窄带物联网设备越来越多,但是严重的同频干扰和信号衰减,导致边缘窄带物联网设备的服务质量难以得到保证。针对此问题,提出了集能型中继非正交多址接入窄带物联网。基于该网络模型,建立了以窄带物联网设备数据速率比例公平性为优化目标的传输功率、数据调度以及时隙调度多维资源分配模型,以在优化网络性能的同时,保证每个窄带物联网设备的数据速率需求。通过发掘该模型的凸优化特性,基于KKT条件提出了多维资源优化分配算法。仿真结果验证了所提算法的有效性,其数据速率比例公平性提升了11.9%,频谱效率提升了55.4%,网络能效提升了44.1%。
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