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Exploiting Rateless Coding for Massive Access
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DOI：10.1109/TVT.2018.2866279.png)
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Abstract
En 中文
In this correspondence paper. we design a massive nonorthog- final multiple access (NOMA) scheme with delay provisioning for cellular internet-of-things. In the context of massive access, the severe interuser interference decreases the quality of the received signal, such that it is a nontrivial task to provide a delay provisioning for heterogeneous wireless services. To solve this challenge, we propose a massive NOMA scheme to meet the delay requirements of a large number of users by exploiting the properties of rateless codes. Especially, we present a power allocation algorithm to minimize the power consumption while achieving delay-constrained massive access. Finally, simulation results validate the effectiveness of the proposed scheme.
Keywords:
Massive access
rateless coding
delay provisioning
NOMA
power allocation
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