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Other-Cell Interference Reducing Resource Allocation in OFDM-Based Asynchronous Cellular Systems

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Authors
Lee, Jin-Woo; Moon, June; Lee, Yong-Hwan
Issue Date
2008-01
Publisher
Hindawi Publishing Corporation
Citation
EURASIP Journal onWireless Communications and Networking, vol. 2008, Article ID 378097, 9 pages
Abstract
Orthogonal frequency division multiplexing (OFDM) is considered as one of the most promising techniques for next-generation
wireless access systems. However, it may suffer from the so-called other-cell interference (OCI) in cellular environments. In this
paper, we consider a novel resource allocation scheme to reduce the OCI in OFDM-based asynchronous cellular systems. The
proposed scheme can reduce the OCI by exploiting repetitive properties of cyclic prefix of OFDM symbol and asynchronous
properties between the user and the base stations in other cells. The proposed scheme can be applied to various types of OFDMbased
systems such as orthogonal frequency division multiple access (OFDMA) and multicarrier code division multiple access
(MC-CDMA) systems. Simulation results show that the proposed scheme can reduce the OCI by nearly up to 1 dB compared to conventional schemes, yielding an increase of the throughput of about 15% near the cell boundary in OFDM-based asynchronous cellular environments.
ISSN
1687-1472
Language
English
URI
http://hdl.handle.net/10371/7670
DOI
https://doi.org/10.1155/2008/378097
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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