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A Complexity Reduced ML Detector on OFDM-CDM Systems in Mobile Channel
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Moon, June | - |
dc.contributor.author | Lee, Yong-Hwan | - |
dc.date.accessioned | 2009-08-24T05:29:24Z | - |
dc.date.available | 2009-08-24T05:29:24Z | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | Proc. Seoul National Univ. and Hokkaido Univ. Joint Symposium, pp.109-112, Oct. 2003 | en |
dc.identifier.uri | https://hdl.handle.net/10371/7578 | - |
dc.description.abstract | Orthogonal frequency-division multiplexing (OFDM) is one of the most promising techniques for the 4-th generation mobile system. When the OFDM system is applied to cellular environment, it is required to make the transmission scheme robust to other-cell interference (OCI). The use of code division multiplexing (CDM) has been considered to mitigate the OCI in OFDM systems. In cell boundary, it is desirable to design OFDM-CDM transceiver scheme to reduce the effect of OCI. In this paper, we consider transceiver schemes for cell boundary users in the OFDM-CDM downlink. We propose a simplified maximum likelihood (ML) detection scheme that can nearly achieve full ML detection performance. In addition, a new spreading code is proposed for BPSK modulation, yielding a receiver gain of about 1dB regardless of detection schemes. Finally, the performance of the proposed schemes is verified by computer simulation. | en |
dc.language.iso | en | en |
dc.subject | OFDM-CDM | en |
dc.subject | Complexity | en |
dc.subject | ML detector | en |
dc.title | A Complexity Reduced ML Detector on OFDM-CDM Systems in Mobile Channel | en |
dc.type | Conference Paper | en |
dc.contributor.AlternativeAuthor | 문준 | - |
dc.contributor.AlternativeAuthor | 이용환 | - |
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