Enhanced Rate Adaptive Resource Allocation Scheme in Downlink OFDMA System

This paper proposes an enhanced rate adaptive resource allocation scheme in an OFDMA (orthogonal frequency division multiple access) downlink transmission system. It proves to be a great improvement on capacity over the latest available rate adaptive OFDMA methods, which seek to maximize the total s...

Full description

Saved in:
Bibliographic Details
Published in2006 IEEE 63rd Vehicular Technology Conference Vol. 5; pp. 2464 - 2468
Main Authors Junhong Hui, Yongxing Zhou
Format Conference Proceeding
LanguageEnglish
Published IEEE 2006
Subjects
adaptive resource allocation
Bit error rate
Broadband communication
Downlink
Fading
Frequency conversion
Interference
multiple access
multiuser diversity
OFDM
OFDM modulation
OFDMA
Resource management
Robustness
Standards development
Online AccessGet full text

Cover

More Information
Summary:This paper proposes an enhanced rate adaptive resource allocation scheme in an OFDMA (orthogonal frequency division multiple access) downlink transmission system. It proves to be a great improvement on capacity over the latest available rate adaptive OFDMA methods, which seek to maximize the total system capacity subject to the total power and BER constraints. We introduce a priority based sequential scheduling criteria instead of random numerical ordering during the first time of subcarrier allocation, which provides higher capacity by exploiting the multiuser diversity gains. Thus it can be seen as an efficient means to improve the system spectrum efficiency through adaptive resource allocation of OFDMA
ISBN:9780780393912
0780393910
ISSN:1550-2252
DOI:10.1109/VETECS.2006.1683300