Research Article
The effects of the sub-carrier grouping on multi-carrier channel aware scheduling
@INPROCEEDINGS{10.1109/BROADNETS.2004.85, author={Fanchun Jin and Gokhan Sahin and Amrinder Arora and Hyeong-Ah Choi}, title={The effects of the sub-carrier grouping on multi-carrier channel aware scheduling}, proceedings={1st Annual Conference on Broadband Networks}, publisher={IEEE}, proceedings_a={BROADNETS}, year={2004}, month={12}, keywords={}, doi={10.1109/BROADNETS.2004.85} }- Fanchun Jin
Gokhan Sahin
Amrinder Arora
Hyeong-Ah Choi
Year: 2004
The effects of the sub-carrier grouping on multi-carrier channel aware scheduling
BROADNETS
IEEE
DOI: 10.1109/BROADNETS.2004.85
Abstract
This paper studies the effects of the sub-carrier grouping on the scheduling problem in a wireless network with multiple carriers. In particular, the authors consider the trade-offs between the size of the sub-carrier groups and the link throughput for various sub-carrier grouping models, with each corresponding to a different level of CSI tracking and system design complexity. The paper assumes that a single user is communicating with the base station using the entire sub-carriers. This assumption is motivated by the OFDM, which uses multiple carriers in order to benefit from the frequency selective fading introduced by spreading the information bits over the entire signal band. An offline dynamic programming algorithm for finding an optimal solution for the case of spectrum- and time-perfect estimates is also presented. The performance can potentially be improved by using high-level modulation on the sub-carriers with good channel conditions.
