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GLOBECOM
2007
IEEE

Outage Behavior of Quasi-Static Fading Channels with Partial Power Control and Noisy Feedback

9 years 4 months ago
Outage Behavior of Quasi-Static Fading Channels with Partial Power Control and Noisy Feedback
Abstract— We investigate the outage behavior of multipleantenna slowly fading channels with resolution constrained feedback and partial power control. A fixed-rate communication scheme is considered. It is known from the literature that with error-free feedback, the power control codebook that minimizes the outage probability with an average power constraint at the transmitter has a circular quantizer structure. Moreover, the diversity gain of the system increases polynomially with the cardinality of the power control codebook. Here, we study a similar system, but within a noisy feedback channel framework. We show that the optimal quantizer structure in this scenario is still circular. Furthermore, the optimal quantization codebook resembles a channel optimized scalar quantizer (COSQ). With noisy feedback, using the new power control codebook, the outage performance of the system is superior to that of a no-feedback system. However, we show through asymptotic analysis that the diver...
Siavash Ekbatani, Farzad Etemadi, Hamid Jafarkhani
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where GLOBECOM
Authors Siavash Ekbatani, Farzad Etemadi, Hamid Jafarkhani
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