Advanced HARQ and scheduler schemes in TDD-CDMA HSDPA systems

被引：0

作者：

Peng, M ^{[1
]}

Wang, WB ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Ctr Wireless Commun, Beijing 100876, Peoples R China

来源：

2004 JOINT CONFERENCE OF THE 10TH ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS AND THE 5TH INTERNATIONAL SYMPOSIUM ON MULTI-DIMENSIONAL MOBILE COMMUNICATIONS, VOLS 1 AND 2, PROCEEDINGS | 2004年

关键词：

HSDPA; TDD-CDMA; scheduler; HARQ; AMC;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, an enhancement HARQ method (E-HARQ) for TDD-CDMA supporting HSDPA techniques is proposed firstly. The basic idea is to discard the retransmission and change the modulation and coding when the link quality is lower than a pre-determined threshold. E-HARQ reduces unnecessary retransmissions and makes MC more efficient; hence the system performance will improve. Compared to the change of MCS selections between HARQ retransmissions, the increase of system complexity due to E-HARQ is small. Furthermore, an advanced Proportionally Fair Scheduling (APFS) algorithm is proposed, which aims at guaranteeing the long-term and short-term fairness as well as maximizing the system throughput. These advanced adaptive techniques can improve the system throughput under the constraint of user's quality of service (QoS).

引用

页码：67 / 70

页数：4