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- W2097953242 abstract "In this paper, we study the scheduler design over delay-constrained wireless communication links. Following a cross-layer design approach, the wireless system is modeled as a joint link-PHY layer architecture with a flnite-length bufier and continuous-state fading links. A heuristic and e-cient flxed rate transmission scheduler (FRT) scheme is proposed. We formulate and analyze the performance of the FRT scheme in terms of power e-ciency and packet drop rate. Compared with variable rate schemes, the FRT scheme can considerably simplify the hardware implementation of the transmitter. In addition, the optimization of the FRT scheme can be conducted with signiflcantly reduced computational cost by utilizing the sparse feature of the transition probability matrix. Moreover, the simulation results show that, the optimized average transmit power of the FRT scheme is only 0.5dB higher than the known optimal variable rate scheme at the packet drop rate of 10 i3 , indicating that the FRT scheme is quite power e-cient as well. Therefore, we conclude that the FRT scheme is more feasible than variable rate schemes in practical delay-constrained wireless systems with regard to both hardware cost and power e-ciency." @default.
- W2097953242 created "2016-06-24" @default.
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- W2097953242 date "2014-01-01" @default.
- W2097953242 modified "2023-09-26" @default.
- W2097953242 title "AN EFFICIENT FIXED RATE TRANSMISSION SCHEME OVER DELAY-CONSTRAINED WIRELESS FADING CHANNELS" @default.
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- W2097953242 doi "https://doi.org/10.2528/pierc13111104" @default.
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