Tree-Algorithms with Multi-Packet Reception and Successive Interference Cancellation

Čedomir Stefanović, Yash Deshpande, H. Murat Gürsu, Wolfgang Kellerer

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In this paper, we study binary tree-algorithms that exploit a combination of multi-packet reception (MPR) and successive interference cancellation (SIC), which so far has not been considered in the literature. Specifically, we assume that the receiver is capable of successfully decoding any collision of up to and including K concurrent packet transmissions and can perform SIC along the tree. We show a number of novel results for this type of tree algorithms. We first derive the basic performance parameters, which are the expected length of the collision resolution interval and the throughput normalized with K , conditioned on the number of contending users. We then analyze their asymptotic behaviour, identifying an oscillatory component that amplifies as K increases. In the next step, we derive the maximum stable throughput (MST) for the gated and windowed access assuming Poisson arrivals. We show that for windowed access, the bound on MST normalized with K increases with K. Finally, we discuss practical issues related to implementation of such scheme, as well as compare it to slotted ALOHA-based schemes that exploit both K -MPR and SIC.

Original languageEnglish
Pages (from-to)6287-6300
Number of pages14
JournalIEEE Transactions on Communications
Volume71
Issue number11
DOIs
StatePublished - 1 Nov 2023

Keywords

  • Random-access protocols
  • massive IoT communications
  • multi-packet reception (MPR)
  • successive interference cancellation (SIC)
  • tree algorithms

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