上行CDM-OFDMA系统小区间干扰的研究
首发时间:2007-08-04
摘要:在CDM-OFDMA上行链路中,由于小区复用因子为1,邻小区用户会对本小区用户带来小区间用户的干扰。在以往的研究中,这种干扰被简化地认为是一种高斯白噪。本文从链路级进行多小区建模,研究并分析了这种小区间干扰的特性。通过大量的仿真,对比了在不同情况下这种小区间干扰与高斯白噪的差异,最后对仿真结果进行分析并给出了相应的总结。
关键词: CDM-OFDMA;小区间干扰; G因子
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Uplink Inter-cell Interference Analysis for cellular CDM-OFDMA System
Abstract:In CDM-OFDMA uplink cellular system, due to frequency reuse factor is 1, neighbor users would influence the desired user in local cell. In past researches, this kind of inter-cell interference (ICI) is regarded as AWGN simply but not exactly. In this paper, we research this kind of issues and build corresponding model form physical layer of view. Then we compare the ICI distribute with AWGN based on this model with different conditions. At last we give the conclusion from the various simulation results.
Keywords: CDM-OFDMA Inter-cell Interference G-factor
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No.1437211945411861****
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