A 2-d subcarrier allocation scheme for capacity enhancement in a clustered OFDM system

被引：21

作者：

Kim, Youngok ^{[1
]}

Kim, Jaekwon

机构：

[1] KT Infra Lab, Dept Next Generat Mobile Dev, Seoul, South Korea

[2] Yonsei Univ, Comp & Telecommun Engn Div, Wonju, South Korea

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2007年 / E90B卷 / 07期

关键词：

OFDM; subcarrier allocation; capacity; complexity;

D O I：

10.1093/ietcom/e90-b.7.1880

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An adaptive subcarrier allocation (SA) algorithm is proposed for both the enhancement of system capacity and the practical implementation in a clustered OFDM system. The proposed algorithm is based on the two dimensional comparison of the channel gain in both rows and columns of the channel matrix to achieve higher system capacity. Simulation results demonstrate that the proposed algorithm outperforms the SA algorithm based on only one dimensional comparison in terms of system capacity, and furthermore, it performs as well as the optimal SA algorithm at relatively low computational cost.

引用

页码：1880 / 1883

页数：4

共 6 条

[1] Capacity enhancement of a multi-user OFDM system using dynamic frequency allocation
Alen, TCH
Madhukumar, AS
Chin, F
[J]. IEEE TRANSACTIONS ON BROADCASTING, 2003, 49 (04) : 344 - 353
[2] Cimini LJ, 1996, IEEE GLOBECOM 1996 - CONFERENCE RECORD, VOLS 1-3, P703, DOI 10.1109/GLOCOM.1996.594452
[3] Kim HS, 2004, VTC2004-SPRING: 2004 IEEE 59TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS, P1816
[4] An adaptive subcarrier allocation algorithm for multiuser OFDM system
Liang, XW
Zhu, JK
[J]. 2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS, 2003, : 1502 - 1506
[5] Rhee W, 2000, 2000 IEEE 51ST VEHICULAR TECHNOLOGY CONFERENCE, PROCEEDINGS, VOLS 1-3, P1085, DOI 10.1109/VETECS.2000.851292
[6] Wong CY, 1999, IEEE J SEL AREA COMM, V17, P1747, DOI 10.1109/49.793310

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