A Carrier Interferometry Based Channel Estimation Technique for MIMO-OFDM/TDMA Systems
| Autor: | Kazunari Yokomakura, Seiichi Sampei, Norihiko Morinaga, Hiroshi Harada |
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| Rok vydání: | 2007 |
| Předmět: |
Computer Networks and Communications
Computer science business.industry Orthogonal frequency-division multiplexing Time division multiple access MIMO-OFDM Subcarrier Transmission (telecommunications) Time-division multiplexing Channel state information Electronic engineering Electrical and Electronic Engineering Carrier interferometry Telecommunications business Software Impulse response Computer Science::Information Theory Data transmission Communication channel |
| Zdroj: | IEICE Transactions on Communications. :1181-1192 |
| ISSN: | 1745-1345 0916-8516 |
| Popis: | SUMMARY This paper proposes a channel estimation technique for the dynamic parameter controlled — orthogonal frequency and time division multiple access (DPC-OF/TDMA) systems studied as one of the candidates of the beyond third generation (B3G) systems. In the proposed scheme, the impulse response, which represents the channel state information (CSI) is estimated using carrier interferometry (CI) which is equivalent to impulse signal transmission. Moreover, because the minimum number of subcarriers allocated to terminals is 64, in order to estimate a CSI with its spreading factor of 64, we employ a code-multiplexed CI signal for a cell search process and a time-domain-multiplexed CI signal for transmit antenna identification. Furthermore, we also propose a flexible CSI estimation scheme that supports two cases: multiple subchannel block assignment and MIMO transmission cases. Computer simulation confirms that the pro |
| Databáze: | OpenAIRE |
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