Performance Analysis of Multi-Cell Systems with Cochannel Interferences and Multiuser Diversity

ZOU Ying-quan; ZHAO Rui; YANG Lu-xi

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Performance Analysis of Multi-Cell Systems with Cochannel Interferences and Multiuser Diversity

更新时间：2025-07-16

- Performance Analysis of Multi-Cell Systems with Cochannel Interferences and Multiuser Diversity
- Acta Electronica Sinica Vol. 39, Issue 10, Pages: 2235-2239(2011)
- 作者机构：
  
  1. 东南大学信息科学与工程学院,江苏,南京,210096
  2. 南京信息工程大学电子与信息工程学院,江苏,南京,210044
  3. 华侨大学信息科学与工程学院,福建,泉州,362021
  4. 东南大学信息科学与工程学院江苏南京,210096
  5. 南京信息工程大学电子与信息工程学院江苏南京,210044
  6. 华侨大学信息科学与工程学院福建泉州,362021
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.5
- Published：2011
- 稿件说明：
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ZOU Ying-quan, ZHAO Rui, YANG Lu-xi. Performance Analysis of Multi-Cell Systems with Cochannel Interferences and Multiuser Diversity[J]. Acta Electronica Sinica, 2011, 39(10): 2235-2239.
DOI：

ZOU Ying-quan, ZHAO Rui, YANG Lu-xi. Performance Analysis of Multi-Cell Systems with Cochannel Interferences and Multiuser Diversity[J]. Acta Electronica Sinica, 2011, 39(10): 2235-2239. DOI：

摘要

考虑存在来自其他蜂窝的不同功率同信道干扰的多用户上行链路

分析了基站采用多用户调度和最大比合并接收时的系统性能.在期望信号和干扰信号分别为Nakgami-

和Rayleigh时

运用基于概率密度函数的性能分析法推导了系统中断概率和平均误符号率(ASER)的闭合表达式.仿真结论显示

系统中断概率和ASER的解析曲线与数值仿真结果一致

系统性能随着天线数和用户数的增大而提升

多天线和多用户分集增益明显

干扰功率有较大差异时系统中断概率性能有所下降.

Abstract

The performance of the system with maximal ratio combining and multiuser scheduling is studied in the multiuser uplink in the presence of unequal power cochannel interferences from other cells.The channels of useful and interference signals are assumed to be Nakagami-

and Rayleigh fading.The closed form expressions for outage probability and average symbol error ratio (ASER) of system are derived by using performance analysis method based on probability density function.Simulation results show that

the analytical curves of the derived expressions match well with the numerical simulations

and the increase of the number of receive antennas and users are both of benefit to the improvement of system performance due to multi-antenna and multiuser diversity

and the presence of a predominant interferer deteriorates the outage per

formance.

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