摘要
针对上行频率资源稀缺而需要采取时频资源复用的问题,提出一种多用户配对算法。算法首先指出用户信干噪比(SINR)达到规定的门限值时才可以进行配对操作,然后推导了在这样高SINR条件下,一种基于信道正交性和用户预估SINR的多用户配对算法。理论分析和仿真结果证明,该算法相对于单用户系统以及其他多用户配对算法,在小区吞吐量特别是小区边缘用户吞吐量方面有较大的提升。
To solve the problem of precious uplink frequency resource and reuse of time-frequency re- source, a multi-user pairing algorithm is proposed. First we set a SINR （Signal to Interference plus Noise Ratio） threshold that only satisfied user can be scheduled. Then a multi-user pairing algorithm based on channel orthogonality and estimated SINR is derived. Theoretical analysis and simulation re- suits show that the algorithm outperforms other pair- ing algorithms as well as single-user system in cell throughput , especially in the cell-edge user throughput.
出处
《现代电信科技》
2013年第3期37-41,共5页
Modern Science & Technology of Telecommunications
