M-WiMAX与WCDMA系统共存问题及M-WiMAX系统子信道分配算法研究

J4 ›› 2010, Vol. 27 ›› Issue (4): 496-502.

M-WiMAX与WCDMA系统共存问题及M-WiMAX系统子信道分配算法研究

张峰

浙江商业职业技术学院，浙江杭州 310053

收稿日期:2010-05-04 修回日期:2010-05-17 出版日期:2010-07-28 发布日期:2010-06-13
通讯作者: 张峰(1970-)，女，硕士，主要从事网络技术的教学与科研工作。
基金资助:
浙江省教育厅项目(Y200908571)

Reduction of adjacent channel interference from M-WiMAX sytem to WCDMA system based on transmit beamforming and the sub-channel allocation in M-WiMAX

ZHANG Feng

Zhejiang College of Commerce & Vocational Technology, Hangzhou 310053, China

Received:2010-05-04 Revised:2010-05-17 Published:2010-07-28 Online:2010-06-13

摘要/Abstract

摘要：

论述了世界微波互用接入（M-WiMAX）系统对和宽带扩频多址接入（WCDMA）系统之间的共同存在问题。为了减少M-WiMAX系统对 WCDMA系统的干扰，我们在M-WiMAX 的基站端使用了自适应发送端波束成形（Transmit Beamforming, TxBF）技术。于此同时，我们提出了相应的邻信道干扰模型以分析TxBF技术在降低邻近信道干扰中的增益。并且，我们提出了一种新型的子信道分配方法用来提高M-WiMAX 系统的数据吞吐率。为了验证提出的算法，我们建立了系统层仿真平台并使用蒙特卡罗仿真的方法来验证本文中提出的算法。

关键词: 宽带扩频多址接入, 邻近信道干扰建模, 发送端波束成形技术, 积极子信道分配

Abstract:

The coexistence problem between M-WiMAX and WCDMA systems is discussed. To reduce the interference from M-WiMAX system to WCDMA system, the transmit beamforming technique is applied. At the same time, we propose an adjacent channel interference model to analyze the gain induced by the appication of transmit beamforming technique. In addtion, we propose a novel sub-channel allocation algorithm to increase the throughput of M-WiMAX system. To verify the proposed algorithms, we build up a system-level simulation platform and use the Monte Carlo method to evaluate.

Key words: WCDMA, adjacent channel interference modeling, transmit beamforming, aggressive sub-channel allocation

张峰. M-WiMAX与WCDMA系统共存问题及M-WiMAX系统子信道分配算法研究[J]. J4, 2010, 27(4): 496-502.

ZHANG Feng. Reduction of adjacent channel interference from M-WiMAX sytem to WCDMA system based on transmit beamforming and the sub-channel allocation in M-WiMAX[J]. J4, 2010, 27(4): 496-502.