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Resource allocation for OCI reduction in OFDM-based asynchronous cellular systems
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- Authors
- Issue Date
- 2007-04
- Citation
- VTC2007-Spring. IEEE 65th Vehicular Technology Conference, 2007
- Keywords
- Resource Allocation ; OCI Reduction ; OFDM ; Asynchronous ; CP
- Abstract
- Orthogonal frequency division multiplexing (OFDM)
is considered as one of the most promising techniques for next
generation mobile systems. When the OFDM is applied to cellular
environments, it may suffer from so-called other-cell interference
(OCI). In this paper, we propose a novel resource allocation
scheme in OFDM-based asynchronous cellular systems. It can
reduce the OCI by exploiting the repetitive property of a cyclic
prefix (CP) of OFDM symbols. The proposed scheme can be
applied to OFDM-frequency division multiple access (FDMA) and
OFDM-code division multiple access (CDMA) systems. Computer
simulation results show that the proposed scheme can reduce the
OCI by nearly up to 1dB in a typical cellular OFDM environment,
compared to the conventional scheme.
- Language
- English
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