Buffer-Aware and Delay-Sensitive Resource Allocation in the Uplink of 3GPP LTE Networks

Research output: Contribution to journalArticle

Abstract

In this study, resource allocation problems in uplink transmissions of long term evolution (LTE) networks involving single-carrier frequency division multiple access were addressed and a two-stage process for obtaining solutions was proposed. In the first stage, a buffer-aware (BA) scheme that allocates resources according to users’ buffer statuses is used to simultaneously reduce wastage of system resources and improve the throughput of each user. In the second stage, a BA-scheme-based enhanced algorithm is used for considering the delay-sensitive (DS) characteristics of packets. Simulations were conducted to compare the performance of the proposed BA and DS resource allocation algorithm with that of other approaches. The results show that the proposed algorithm can effectively improve the aggregate throughput and reduce both the packet loss rate and average packet delay in comparison with other schemes, thus enhancing the overall uplink efficiency of LTE networks.

Original languageEnglish
Pages (from-to)1877-1890
Number of pages14
JournalWireless Personal Communications
Volume84
Issue number3
DOIs
Publication statusPublished - 2015 Oct 13

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Long Term Evolution (LTE)
Resource allocation
Throughput
Frequency division multiple access
Packet loss

Keywords

  • Single-carrier frequency division multiple access (SC-FDMA)
  • Third-Generation Partnership Project (3GPP) long term evolution (LTE)
  • Uplink resource allocation

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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title = "Buffer-Aware and Delay-Sensitive Resource Allocation in the Uplink of 3GPP LTE Networks",
abstract = "In this study, resource allocation problems in uplink transmissions of long term evolution (LTE) networks involving single-carrier frequency division multiple access were addressed and a two-stage process for obtaining solutions was proposed. In the first stage, a buffer-aware (BA) scheme that allocates resources according to users’ buffer statuses is used to simultaneously reduce wastage of system resources and improve the throughput of each user. In the second stage, a BA-scheme-based enhanced algorithm is used for considering the delay-sensitive (DS) characteristics of packets. Simulations were conducted to compare the performance of the proposed BA and DS resource allocation algorithm with that of other approaches. The results show that the proposed algorithm can effectively improve the aggregate throughput and reduce both the packet loss rate and average packet delay in comparison with other schemes, thus enhancing the overall uplink efficiency of LTE networks.",
keywords = "Single-carrier frequency division multiple access (SC-FDMA), Third-Generation Partnership Project (3GPP) long term evolution (LTE), Uplink resource allocation",
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