Delay Performance of Two-Stage Access in Cellular Internet-of-Things Networks

Jeemin Kim, Hyun Kwan Lee, Dong Min Kim, Seong-Lyun Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper, two-stage random-access-based massive Internet-of-things uplink transmission is investigated. In this scheme, aggregator nodes are additionally deployed to relay packets to deal with a massive number of arrivals. A user node determines whether to utilize aggregator nodes according to the received signal strength from base stations and aggregator nodes. If the user node selects and transmits a packet to an aggregator node, the aggregator node stores and forwards the received packet to the base station. The use of aggregator nodes can reduce the per-hop delay as well as the user energy consumption by reducing the transmission distance from user nodes. However, in the two-stage random access protocol, an increase in the number of aggregator nodes incurs collisions in the wireless medium, and hence, increases the queueing delay at the aggregator node. Thus, improved radio resource allocation and network design are required to reduce additional delay in the two-hop uplink system. We, therefore, focus on optimizing the transmission probabilities of transmitting nodes and the aggregator node density to minimize the delay in two-stage random access networks.

Original languageEnglish
Pages (from-to)3521-3533
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Volume67
Issue number4
DOIs
Publication statusPublished - 2018 Apr 1

Fingerprint

Internet of Things
Base stations
Vertex of a graph
Resource allocation
Random Access
Energy utilization
Network protocols
Uplink
Internet of things
Received Signal Strength
Queueing
Network Design
Resource Allocation
Relay
Energy Consumption

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Kim, Jeemin ; Lee, Hyun Kwan ; Kim, Dong Min ; Kim, Seong-Lyun. / Delay Performance of Two-Stage Access in Cellular Internet-of-Things Networks. In: IEEE Transactions on Vehicular Technology. 2018 ; Vol. 67, No. 4. pp. 3521-3533.
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Delay Performance of Two-Stage Access in Cellular Internet-of-Things Networks. / Kim, Jeemin; Lee, Hyun Kwan; Kim, Dong Min; Kim, Seong-Lyun.

In: IEEE Transactions on Vehicular Technology, Vol. 67, No. 4, 01.04.2018, p. 3521-3533.

Research output: Contribution to journalArticle

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