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Rate adaptation and power allocation for time-correlated MISO Rayleigh fading channel with delay-limited HARQ

Rastegar, S. H ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/ICC.2012.6364609
  3. Abstract:
  4. In this paper, we consider the problem of optimum rate adaptation and power allocation to maximize the delay-limited throughput (DLT) in a time-correlated 2×1 MISO Rayleigh fading channel with Hybrid ARQ in Chase-Combining mode (HARQ-CC). To this aim, we have first formulated the DLT equation based on the outage probability for 2×1 MISO-HARQ channel. We show that exact analytical calculation of the outage probability is not tractable. Therefore, we approximate the outage probability using a log-normal approximation approach. Based on such approximation, optimal rate and power allocations are derived. Finally, using Monte-Carlo simulation, we show that the approximation method provides results which are very close to the exact solution
  5. Keywords:
  6. Analytical calculation ; Approximation approach ; Approximation methods ; Equation based ; Exact solution ; Hybrid ARQ ; Log-normal ; Monte Carlo simulation ; Optimal rate ; Optimum rate ; Outage probability ; Power allocations ; Rate adaptation ; Approximation theory ; Fading channels ; Intelligent systems ; Probability ; Rayleigh fading ; Beamforming
  7. Source: IEEE International Conference on Communications, 10 June 2012 through 15 June 2012 ; 2012 , Pages 3915-3919 ; 15503607 (ISSN) ; 9781457720512 (E-ISBN)
  8. URL: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6364609&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6364609