Rateless codes have been shown to provide robust error correction over a wide range of binary and noisy channels. Using a stochastic geometry model, this paper studies the performance of rateless codes in the cellular downlink and compares it with the performance of fixed-rate codes. For the case of Rayleigh fading, an accurate approximation is proposed for the distribution of the packet transmission time of K -bit information packets using rateless codes. The two types of channel coding schemes are compared by evaluating the typical user and peruser success probability and the rate. Based on both the analytical results and simulations, the paper shows that rateless coding provides a significant throughput gain relative to fixed-rate coding. Moreover, the benefit is not restricted to the typical user but applies to all users in the cellular network.
From a communication theory view, the work of REF studies the performance of rateless codes in the PHY layer of cellular downlink channel and compares it to that of fixed-rate coded PHY layer.
Enhanced Cellular Coverage and Throughput Using Rateless Codes
IEEE Transactions on Communications
IEEE Transactions on Communications
Computer Science Mathematics