An efficient multiuser frequency-time grid(FTG) allocation algorithm for OFDM-based broadband wireless systems

被引：0
|
作者：
Zhang, X [1 ]
Wang, WB [1 ]
Liu, YA [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Ctr Wireless Commun, Beijing 100876, Peoples R China
来源：
2004 IEEE 15TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-4, PROCEEDINGS | 2004年
关键词：
resource scheduling; OFDM; frequency-time grid (FTG); modulation and coding scheme (MCS);
D O I：
10.1109/PIMRC.2004.1368367
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, we propose an efficient frame-based two-dimensional frequency-time grid (FTG) allocation algorithm to maximize the system throughput while satisfying users' rate requirements in a multiuser and multirate service environment. The FTG scheduling algorithm is done per OFDM frame, allocating each frequency-time grid to different users according to both channel state information (CSI) and users' QoS constraints. The performance of the frame-based FTG algorithm is obtained in a multiuser frequency selective fading environment. The results show that the system using the proposed FTG algorithm has significant lower outage probability and higher capacity which is very near the upper bound (maximum allocation method).
引用
收藏
页码：2092 / 2096
页数：5
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