Optimum 4-Transmit-Antenna STBC/SFBC with Angle Feedback and a Near-Optimum 1-Bit Feedback Scheme

A 4-antenna transmit diversity scheme based on space time/frequency block coding (STBC/SFBC) with 1-bit feedback is proposed. We first describe the optimum scheme with angle feedback. We then identify the condition under which choosing between only two choices of angles effectively eliminates the la...

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Veröffentlicht in:	IEEE communications letters 2007-11, Vol.11 (11), p.868-870
Hauptverfasser:	Joonsuk Kim, Ariyavistakul, S.L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna feeds Antennas Applied sciences Block codes Blocking Coding Coding, codes Exact sciences and technology Fading Feedback Frequency diversity Information, signal and communications theory Interference Interference elimination MIMO Optimization Quadrature amplitude modulation Radiocommunications Receiving antennas Signal and communications theory Simulation Telecommunications Telecommunications and information theory Transmitting antennas
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Beschreibung
Zusammenfassung:	A 4-antenna transmit diversity scheme based on space time/frequency block coding (STBC/SFBC) with 1-bit feedback is proposed. We first describe the optimum scheme with angle feedback. We then identify the condition under which choosing between only two choices of angles effectively eliminates the larger between the real and imaginary parts of the interference term. Simulation shows that the 1-bit feedback scheme achieves near-optimum performance.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2007.071039