随机化竞争的LTE-A中继蜂窝小区边缘协作调度策略

doi:10.13190/j.jbupt.2014.03.015

北京邮电大学学报 ›› 2014, Vol. 37 ›› Issue (3): 73-77.doi: 10.13190/j.jbupt.2014.03.015

随机化竞争的LTE-A中继蜂窝小区边缘协作调度策略

曲桦¹, 徐西光¹, 赵季红^1,2, 李熠伟¹

1. 西安交通大学电信学院, 西安 710049;
2. 西安邮电大学通信与信息工程学院, 西安 710061

收稿日期:2013-08-04 出版日期:2014-06-28 发布日期:2014-06-08
作者简介:曲桦（1961-），男，教授，博士生导师，E-mail：qh@mail.xjtu.edu.cn.
基金资助:
国家自然科学基金项目（61372092）；新一代宽带无线通信网国家科技重大专项项目（2011ZX03005-004，2012ZX03001029-003，2012ZX03001008-003）

Collaborative Scheduling Scheme Based on Random Competition for the Edge of LTE-A Relay-Enhanced Cell

QU Hua¹, XU Xi-guang¹, ZHAO Ji-hong^1,2, LI Yi-wei¹

1. The School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. The School of Telecommunication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 71006l, China

Received:2013-08-04 Online:2014-06-28 Published:2014-06-08

摘要/Abstract

摘要：

提出了随机化竞争调度算法. 该算法属于协作调度算法的范畴，适用于对相邻中继蜂窝小区边缘的用户进行联合调度. 以此算法为基础，提出了基于随机化竞争的中继蜂窝小区边缘协作调度策略. 该策略通过在相邻小区边缘可能产生资源冲突的区域形成协作中继簇，并在协作中继簇覆盖的区域内应用随机化竞争调度算法，能够尽量避免相邻小区之间产生同频干扰，从而提升小区边缘的传输性能. 仿真结果表明，所提出的协作调度策略有效地降低了相邻小区中继站对边缘用户的干扰，提升了小区边缘的吞吐量，并在一定程度上增强了小区中心和边缘区域之间的调度公平性.

关键词: 中继蜂窝小区, 随机化竞争, 资源调度, 边缘吞吐量

Abstract:

Random competition (RC) scheduling algorithm is proposed. This algorithm is applied to joint scheduling between cells edge users of different adjacent areas, which belongs to the category of collaborative scheduling algorithm. In addition, collaborative scheduling scheme based on random competition for the edge of relay-enhanced cell is proposed based on this algorithm. In order to avoid co-frequency interference and improve the transmission performance of the cell edge areas, we introduce the collaborative relay cluster in the edge of relay-enhanced cell where resource conflicts would appear and apply RC scheduling algorithm among collaborative relay cluster. Simulation results suggest that the proposed method can reduce the users' interference of the adjacent cells, and improve the cell edge throughput. Moreover, the scheduling fairness between cell center and edge can be enhanced.

Key words: relay-enhanced cell, random competition, collaborative scheduling, cell edge throughput

中图分类号:

TN929.53

曲桦, 徐西光, 赵季红, 李熠伟. 随机化竞争的LTE-A中继蜂窝小区边缘协作调度策略[J]. 北京邮电大学学报, 2014, 37(3): 73-77.

QU Hua, XU Xi-guang, ZHAO Ji-hong, LI Yi-wei. Collaborative Scheduling Scheme Based on Random Competition for the Edge of LTE-A Relay-Enhanced Cell[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2014, 37(3): 73-77.

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随机化竞争的LTE-A中继蜂窝小区边缘协作调度策略

Collaborative Scheduling Scheme Based on Random Competition for the Edge of LTE-A Relay-Enhanced Cell

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