Co-channel and adjacent channel interference evaluation for IMT-Advanced coexistence with existing fixed systems
Co-channel and adjacent channel interference evaluation for IMT-Advanced coexistence with existing fixed systems
复制标题
IMT-Advanced 与现有固定系统共存的同信道和邻信道干扰评估
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Tharek Abd Rahman
中科院分区：
文献类型：
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作者：
Z. Shamsan;L. Abdulrazak;Tharek Abd Rahman
由于频谱稀缺和各种无线应用的出现，IMT先进和固定无线接入（FWA）系统之间的共存和共享成为最近的关键问题。在WRC-07会议上，ITU-R为即将到来的第四代（4G）或高级IMT分配了3400-3600 MHz频段，与现有的FWA系统一起沿着。因此，必须在同信道和相邻信道频率方面实现共存和共享要求，如分离距离和频率分离协调。分析了两个基站天线的共站和两个系统的非共站共存（取决于作为标准共存准则的-6dB的干扰噪声比）。干扰分析模型，相邻信道干扰比ACIR和光谱发射掩模（SEM）被应用在所述频带中，以提取保护相邻信道干扰所需的额外隔离。最后，可能的系统间干扰缓解技术的建议。
Due to spectrum scarcity and emerging various wireless applications, coexistence and sharing between IMT-advanced and fixed wireless access (FWA) systems becomes a recently critical issue. At WRC-07, ITU-R allocated 3400-3600 MHz band for the coming fourth generation (4G) or IMT-Advanced on a co-primary basis along with existing FWA systems. Therefore, coexistence and sharing requirements like separation distance and frequency separation coordination must be achieved in terms of both co-channel and adjacent channel frequencies. Co-sited the two base stations antennas and non co-sited coexistence of the two systems are analyzed (depending on interference to noise ratio of -6 dB as a standard coexistence criteria). The interference analysis models, adjacent channel interference ratio ACIR and spectral emission mask (SEM) are applied in the mentioned band to extract the additional isolation needed to protect adjacent channel interference. Finally, possible intersystem interference mitigation techniques are suggested.