Design and performance of an LDPC-Coded FH-OFDMA system in the uplink cellular environments

Yun Hee Kim; Kwang Soon Kim; Sang Hyun Lee

doi:10.1093/ietcom/e89-b.3.828

Design and performance of an LDPC-Coded FH-OFDMA system in the uplink cellular environments

Yun Hee Kim, Kwang Soon Kim, Sang Hyun Lee

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An LDPC-coded FH-OFDMA system is proposed for the uplink of a packet-based cellular system, where the frequency hopping (FH) is based on a resource block (RB) for coherent demodulation. For the system, different RB types are employed either for better intercell interference (ICI) averaging capability or for better channel estimation performance. For the receiver, practical iterative channel estimation and decoding methods are proposed to improve the channel estimation performance without boosting the pilot power and to mitigate the adverse effects of the ICI. Extensive simulation results are provided to show the effect of the RB size on the channel estimation and ICI averaging performance as well as possible application of the proposed receiver in harsh mobile environments with dynamic packet allocation.

Original language	English
Pages (from-to)	828-836
Number of pages	9
Journal	IEICE Transactions on Communications
Volume	E89-B
Issue number	3
DOIs	https://doi.org/10.1093/ietcom/e89-b.3.828
Publication status	Published - 2006

All Science Journal Classification (ASJC) codes

Software
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1093/ietcom/e89-b.3.828

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abstract = "An LDPC-coded FH-OFDMA system is proposed for the uplink of a packet-based cellular system, where the frequency hopping (FH) is based on a resource block (RB) for coherent demodulation. For the system, different RB types are employed either for better intercell interference (ICI) averaging capability or for better channel estimation performance. For the receiver, practical iterative channel estimation and decoding methods are proposed to improve the channel estimation performance without boosting the pilot power and to mitigate the adverse effects of the ICI. Extensive simulation results are provided to show the effect of the RB size on the channel estimation and ICI averaging performance as well as possible application of the proposed receiver in harsh mobile environments with dynamic packet allocation.",

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AB - An LDPC-coded FH-OFDMA system is proposed for the uplink of a packet-based cellular system, where the frequency hopping (FH) is based on a resource block (RB) for coherent demodulation. For the system, different RB types are employed either for better intercell interference (ICI) averaging capability or for better channel estimation performance. For the receiver, practical iterative channel estimation and decoding methods are proposed to improve the channel estimation performance without boosting the pilot power and to mitigate the adverse effects of the ICI. Extensive simulation results are provided to show the effect of the RB size on the channel estimation and ICI averaging performance as well as possible application of the proposed receiver in harsh mobile environments with dynamic packet allocation.

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Design and performance of an LDPC-Coded FH-OFDMA system in the uplink cellular environments

Abstract

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