VIRTUAL FREQUENCY REUSE TO INCREASE CAPACITY OF OFDM SYSTEMS

Seung-Moo Cho, Tae-Jin Lee

Abstract

This paper presents a novel frequency reuse scheme that reduces the effects of co-channel interference and in-creases the capacity of orthogonal frequency division multiplexing (OFDM) systems. To increase the capacity of a system, the frequency reuse factor should be close to 1. In general, reduction of co-channel interference (CCI) is achieved at the cost of cell capacity. Our virtual frequency reuse (VFR) targets to mitigate such tradeoff. In VFR, the type of a cell is determined by the order of sub-channel assignment. And users in a cell are assigned sub-carriers among sub-channels by a specific regulation. Probabilistic interference analysis and simulation results show that the proposed virtual frequency reuse improves the performance of an OFDM system for both uniform and non-uniform distributions of traffic load.

References

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Paper Citation


in Harvard Style

Cho S. and Lee T. (2008). VIRTUAL FREQUENCY REUSE TO INCREASE CAPACITY OF OFDM SYSTEMS . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008) ISBN 978-989-8111-62-3, pages 135-139. DOI: 10.5220/0002021601350139


in Bibtex Style

@conference{winsys08,
author={Seung-Moo Cho and Tae-Jin Lee},
title={VIRTUAL FREQUENCY REUSE TO INCREASE CAPACITY OF OFDM SYSTEMS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)},
year={2008},
pages={135-139},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002021601350139},
isbn={978-989-8111-62-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2008)
TI - VIRTUAL FREQUENCY REUSE TO INCREASE CAPACITY OF OFDM SYSTEMS
SN - 978-989-8111-62-3
AU - Cho S.
AU - Lee T.
PY - 2008
SP - 135
EP - 139
DO - 10.5220/0002021601350139