結合三角分解和SLNR的同頻干擾抑制算法
發(fā)布時間:2018-12-29 21:01
【摘要】:針對多小區(qū)多用戶下行鏈路同頻干擾問題,提出一種結合三角分解和信漏噪比(signal leakage noise ratio,SLNR)的干擾抑制算法,算法通過對聯(lián)合信道的三角分解先將小區(qū)間干擾減少一半,然后利用SLNR算法和干擾抑制矩陣進一步消除小區(qū)間干擾。理論分析表明算法使得接收端不再需要增加用于抑制小區(qū)間干擾的矩陣及相應矩陣運算,從而降低了算法復雜度。計算機仿真表明較傳統(tǒng)SLNR算法,該算法在系統(tǒng)容量和能量效率等性能方面得到改善。
[Abstract]:Aiming at the problem of multi-cell multi-user downlink co-frequency interference, an interference suppression algorithm combining triangulation decomposition and signal-to-noise ratio (signal leakage noise ratio,SLNR) is proposed. The algorithm reduces the inter-cell interference by half by triangulation decomposition of the joint channel. Then SLNR algorithm and interference suppression matrix are used to further eliminate inter-cell interference. Theoretical analysis shows that the algorithm can reduce the complexity of the algorithm by increasing the matrix and matrix operation to suppress inter-cell interference. Computer simulation shows that compared with the traditional SLNR algorithm, the performance of the algorithm is improved in terms of system capacity and energy efficiency.
【作者單位】: 重慶郵電大學移動通信技術重慶市重點實驗室;重慶郵電大學通信與信息工程學院;
【基金】:國家重大科學儀器設備開發(fā)專項(2012YQ20022404) 重慶市自然科學基金(CSTCjjA40014,CSTC2013jjB40001)資助課題
【分類號】:TN972
[Abstract]:Aiming at the problem of multi-cell multi-user downlink co-frequency interference, an interference suppression algorithm combining triangulation decomposition and signal-to-noise ratio (signal leakage noise ratio,SLNR) is proposed. The algorithm reduces the inter-cell interference by half by triangulation decomposition of the joint channel. Then SLNR algorithm and interference suppression matrix are used to further eliminate inter-cell interference. Theoretical analysis shows that the algorithm can reduce the complexity of the algorithm by increasing the matrix and matrix operation to suppress inter-cell interference. Computer simulation shows that compared with the traditional SLNR algorithm, the performance of the algorithm is improved in terms of system capacity and energy efficiency.
【作者單位】: 重慶郵電大學移動通信技術重慶市重點實驗室;重慶郵電大學通信與信息工程學院;
【基金】:國家重大科學儀器設備開發(fā)專項(2012YQ20022404) 重慶市自然科學基金(CSTCjjA40014,CSTC2013jjB40001)資助課題
【分類號】:TN972
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