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FDD Massive MIMO技术中多用户空分复用的研究 被引量:2
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作者 谢武生 董帝烺 《移动通信》 2018年第4期12-16,共5页
5G技术越来越近,但是LTE网络在未来还将长期存在,利用5G的Massive MIMO技术来提升LTE网络的容量非常有价值。通过对Massive MIMO技术提升容量的MU-MIMO理论进行分析,实现在TM9和TM3/TM4模式下的MUMIMO技术,并且在现网中分别进行了测试验... 5G技术越来越近,但是LTE网络在未来还将长期存在,利用5G的Massive MIMO技术来提升LTE网络的容量非常有价值。通过对Massive MIMO技术提升容量的MU-MIMO理论进行分析,实现在TM9和TM3/TM4模式下的MUMIMO技术,并且在现网中分别进行了测试验证,基本达到了预期的效果。最后针对影响MU-MIMO性能的用户空间分布、激活用户数、用户业务类型等因素进行了定量分析,给出MU-MIMO在现网中应用的指导建议。 展开更多
关键词 大规模MIMO 多用户MIMO 传输模式9 传输模式3/4 时频网络资源 空分复用
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A novel spectrum borrowing scheme in integrated 3G/WLAN networks
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作者 李希金 Ji Hong Zhang Lin 《High Technology Letters》 EI CAS 2012年第2期155-159,共5页
In the heterogeneous wireless networks of the next generation, a large number of different radio access technologies will be integrated into a common network. This paper considers optimizing the utilization of spectru... In the heterogeneous wireless networks of the next generation, a large number of different radio access technologies will be integrated into a common network. This paper considers optimizing the utilization of spectrum resource in heterogeneous environment consisting two different networks: wireless local area network (WLAN) and time division-synchronous code division multiple access (TD-SCDMA) network. An optimal joint spectrum borrowing scheme maximizing overall network revenue is proposed with quality of service (QoS) constraints over both the WLAN and the TD-SCDMA cellular networks. Simulation results illustrate that system revenue earned in the proposed joint spectrum borrowing scheme is significantly larger than the case when individual networks are optimized independently. 展开更多
关键词 heterogeneous wireless network integrated network spectrum borrowing
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