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Erschienen in:
2019 | OriginalPaper | Buchkapitel
An Adaptive Code Rate Control of Polar Codes in Time-Varying Gaussian Channel
verfasst von : Hongxu Jin, Bofeng Jiang
Erschienen in: Communications and Networking
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Abstract
Under a benchmark of bit error rate (BER) in data transmission, a just perfect trade-off between maximizing code rate (CR) and reliable communication presents a significant coordinated challenge in the time-varying additive white Gaussian noise (T-AWGN) channel. In this paper, based on the guidance of a tight bound as coding parameters of polar code rate \( R \), block length \( N \) with the capacity \( I(W) \) in channel \( W \) of \( N \ge \beta /(I(W) - R)^{\mu } \), a criteria of effectively adjusting the size of the parameter \( \mu \) will achieve a better trade-off between the CR and the reliability, where \( \beta \) depends only on block error probability. In the circumstance of a round-clock traffic light (RTL) simulation, numerical results show that this scheme has a good preference for the guaranteed reliability for the wireless communication.