现代电信科技
現代電信科技
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MODERN SCIENCE & TECHNOLOGY OF TELECOMMUNICATIONS
2013年
10期
21-26
,共6页
TD-LTE-Advanced%SRS误差%MIMO%性能评估
TD-LTE-Advanced%SRS誤差%MIMO%性能評估
TD-LTE-Advanced%SRS오차%MIMO%성능평고
TD-LTE-Advanced%SRS error%MIMO%performance evaluation
在实际TD-LTE-Advanced系统中,针对非理想SRS信道,结合SRS信道估计误差的理论,建立SRS信道估计误差的模型,深入研究SRS误差对MIMO的性能影响。仿真分析显示,存在SRS误差的实际信道对协作多点传输(CoMP)有较大影响,但是相对其他基于波束赋形的MIMO模式仍能保证较高的增益。文章的研究工作分析非理想信道估计对系统性能的影响,并评估非理想SRS信道下多种MIMO模式的系统性能。
在實際TD-LTE-Advanced繫統中,針對非理想SRS信道,結閤SRS信道估計誤差的理論,建立SRS信道估計誤差的模型,深入研究SRS誤差對MIMO的性能影響。倣真分析顯示,存在SRS誤差的實際信道對協作多點傳輸(CoMP)有較大影響,但是相對其他基于波束賦形的MIMO模式仍能保證較高的增益。文章的研究工作分析非理想信道估計對繫統性能的影響,併評估非理想SRS信道下多種MIMO模式的繫統性能。
재실제TD-LTE-Advanced계통중,침대비이상SRS신도,결합SRS신도고계오차적이론,건립SRS신도고계오차적모형,심입연구SRS오차대MIMO적성능영향。방진분석현시,존재SRS오차적실제신도대협작다점전수(CoMP)유교대영향,단시상대기타기우파속부형적MIMO모식잉능보증교고적증익。문장적연구공작분석비이상신도고계대계통성능적영향,병평고비이상SRS신도하다충MIMO모식적계통성능。
In actual TD-LTE-Advanced system, for non-ideal SRS channel, we build the SRS channel estimation error model based on the theory of SRS channel estimation error to further study the impact of this imperfect on the MIMO system under SRS channel estimation error. Simulation analysis shows that actual channel SRS errors have a greater perfor-mance impact on the CoMP. But relative to other based beamforming MIMO mode CoMP can still en-sure a higher gain. The research of the paper work focus on analyzing non-ideal channel estimation of the impact on system performance and assesses a variety of MIMO system performance under the non-ideal SRS channel.