Admission control for cellular networks with direct QoS monitoring

Dae Hee Kim, Danlu Zhang, Naga Bhushan, Rajesh Pankaj, Seong Jun Oh

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper proposes an admission control algorithm for cellular networks based on the direct and dynamic monitoring of quality of services (QoS) performance metrics - both system delay tail and residual throughput. The main purpose of directly monitoring these QoS performance metrics is to more precisely meet the QoS requirements. The delay tail is efficiently estimated by the proposed algorithm and the total residual throughput is determined based on the total achieved throughput and total required throughput. With the estimated delay tails and measured residual throughput, the admission or rejection of a new user is determined at each base station. By doing so, the admission control algorithm improves resource utilization by guaranteeing the QoS. Additionally, the cellular system becomes more robust against the time-varying fading channel environment. The simulation results of the long term evolution downlink system show that the proposed algorithm can achieve a significant improvement in results compared to those of reference schemes. A general Neyman-Pearson-like framework is also used in evaluating the various admission control mechanisms.

Original languageEnglish
Pages (from-to)131-144
Number of pages14
JournalWireless Networks
Volume19
Issue number2
DOIs
Publication statusPublished - 2013

Keywords

  • Admission control
  • Delay estimation
  • Neyman-Pearson
  • OFDM
  • QoS guarantee
  • QoS metric

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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