Optimum antenna combining in presence of TX leakage

Optimum antenna combining is utilised to cope with the transmitter (TX) leakage issue encountered in carrier aggregation. By assuming the transmission of pilot symbols and exploiting the structural information of the noise-plus-interference covariance, the maximum likelihood covariance estimation is...

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Veröffentlicht in:	Electronics letters 2014-01, Vol.50 (3), p.223-225
Hauptverfasser:	Park, Chester Sungchung, Kim, Jintae
Format:	Artikel
Sprache:	eng
Schlagworte:	3G mobile communication 3GPP Long Term Evolution Agglomeration Antennas Applied sciences carrier aggregation Computer simulation Covariance covariance analysis Equipments and installations Exact sciences and technology Gain Leakage Long Term Evolution LTE maximum likelihood covariance estimation maximum likelihood estimation mobile antennas Mobile radiocommunication systems noise‐plus‐interference covariance Optimization optimum antenna performance gain pilot symbols Pilots Radiocommunications structural information structured covariance estimation Telecommunications Telecommunications and information theory transmitter leakage issue Transmitters. Receivers TX leakage issue Wireless communications
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Beschreibung
Zusammenfassung:	Optimum antenna combining is utilised to cope with the transmitter (TX) leakage issue encountered in carrier aggregation. By assuming the transmission of pilot symbols and exploiting the structural information of the noise-plus-interference covariance, the maximum likelihood covariance estimation is mathematically derived. The simulation results verify that the proposed antenna combining with the structured covariance estimation provides a noticeable performance gain in the presence of TX leakage.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2013.3371