Adaptive Transmission in Cellular Networks: Fixed-Rate Codes with Power Control vs Physical Layer Rateless Codes.

Amogh Rajanna*, Carl P. Dettmann

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
150 Downloads (Pure)

Abstract

Adaptive transmission schemes are a crucial aspect of the radio design for future wireless networks. The paper studies the performance of two classes of adaptive transmission schemes in cellular downlink. One class is based on physical layer rateless codes with constant transmit power and the other uses fixed-rate codes in conjunction with power adaptation. Using a simple stochastic geometry model for the cellular downlink, the focus is to compare the adaptivity of fixed-rate codes with power adaptation to that of physical layer rateless codes only. The performance of both rateless and fixed-rate coded adaptive transmission schemes are compared by evaluating the typical user success probability and rate achievable with the two schemes. Based on both the theoretical analysis and simulation results, it is clearly shown that fixed-rate codes require power control to maintain good performance whereas physical layer rateless codes with constant power can still provide robust performance.
Original languageEnglish
Article number8681739
Pages (from-to)3005-3018
Number of pages14
JournalIEEE Transactions on Wireless Communications
Volume18
Issue number6
DOIs
Publication statusPublished - 1 Jun 2019

Keywords

  • Downlink
  • power control
  • encoding
  • wireless communication
  • interference
  • adaptation models
  • cellular networks
  • adaptive modulation and coding
  • rateless codes
  • transmit power adaptation
  • fixed rate coeds
  • adaptive transmission
  • cellular downlink
  • fractional power control

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