| 摘要: |
| 为了能够减少多小区基站协作时的回传开销和预编码复杂度，研究了基
于信漏噪比（SLNR）最大化准则的协作多小区传输
分布式预编码算法。多个小区协作传输数据，仅仅需要局部的信道状态信息和用户的数据信
息，减少了无线回传开销，得到基站协作带来的性能提高。仿真表明，与协作多小区传输的
迫零（ZF）算法和协作单小区传输的SLNR算法相比，协作多小区传输SLNR
预编码在开销和性能之间取得了良好的折衷。 |
| 关键词: 多小区协作 信漏噪比 分布式协作预编码 信道状态信息 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（61271234，61001099）；河南工业大学高层次人才基金资助项目（2012BS056） |
|
| Distributed cooperative precoding based on maximized signal to leakage plus noise ratio in multicell systems |
| ZHANG Rui,FU Hong-liang |
| () |
| Abstract: |
| To reduce the backhaul overheads and precoding complexity of base stat
ion coordination in multicell systems, the distributed precoding strategy based
on maximizing the signal to leakage plus noise ratio (SLNR) is considered. It on
ly needs the local channel state information (CSI) and the user data, which effi
ciently reduces backhaul overheads while enjoys the gain of the base station coo
rdinated transmission. The distributed precoding strategy is compared with coord
inated multiple cells transmission based on zero forcing（ZF）algorithm and coor
dinated single cell transmission based on SLNR algorithm. Simulation results sho
w that the proposed strategy gets a good tradeoff between overheads and performance. |
| Key words: multicell coordination signal to leakage plus noise ratio distributed cooperati
ve precoding channel state information |
《电讯技术》编辑部 