A performance model for admission control in IEEE 802.16

Eunhyun Kwon, Jaiyong Lee, Kyunghun Jung, Shihoon Ryu

Research output: Contribution to journalConference article

16 Citations (Scopus)

Abstract

For systems based on connection-oriented services, such as IEEE 802.16, call admission control (CAC) strategy is essential to provide a desired level of quality of service (QoS). Although many handoff-prioritized CAC schemes, which assume a fixed channel capacity, have been introduced, this assumption is not always valid for IEEE 802.16 that uses adaptive modulation and coding (AMC). With AMC, the modulation type of a user's connection can be changed dynamically and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced CAC problem by focusing on the guaranteed connection. Three kinds of calls, new, handoff, and modulation-changed calls, are considered. We propose a modified guard channel CAC scheme that allows the modulation-changed and handoff calls to use the guard channel. Then we analyze a Markov model for the CAC scheme with long-term AMC in mind. According to the simulation results, the proposed approach reduces the call dropping probability for modulation-changed calls, which suggests the threshold of guard channels in IEEE 802.16 can be determined based on the proposed approach.

Original languageEnglish
Pages (from-to)159-168
Number of pages10
JournalLecture Notes in Computer Science
Volume3510
Publication statusPublished - 2005 Sep 30

Fingerprint

Call Admission Control
IEEE 802.16
Congestion control (communication)
Admission Control
Adaptive Modulation and Coding
Performance Model
Adaptive modulation
Access control
Modulation
Handoff
Channel Capacity
Channel capacity
Markov Model
Quality of Service
Control Strategy
Control Problem
Quality of service
Valid
Simulation

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Kwon, Eunhyun ; Lee, Jaiyong ; Jung, Kyunghun ; Ryu, Shihoon. / A performance model for admission control in IEEE 802.16. In: Lecture Notes in Computer Science. 2005 ; Vol. 3510. pp. 159-168.
@article{f36058109f4145609325c68cb2df57a1,
title = "A performance model for admission control in IEEE 802.16",
abstract = "For systems based on connection-oriented services, such as IEEE 802.16, call admission control (CAC) strategy is essential to provide a desired level of quality of service (QoS). Although many handoff-prioritized CAC schemes, which assume a fixed channel capacity, have been introduced, this assumption is not always valid for IEEE 802.16 that uses adaptive modulation and coding (AMC). With AMC, the modulation type of a user's connection can be changed dynamically and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced CAC problem by focusing on the guaranteed connection. Three kinds of calls, new, handoff, and modulation-changed calls, are considered. We propose a modified guard channel CAC scheme that allows the modulation-changed and handoff calls to use the guard channel. Then we analyze a Markov model for the CAC scheme with long-term AMC in mind. According to the simulation results, the proposed approach reduces the call dropping probability for modulation-changed calls, which suggests the threshold of guard channels in IEEE 802.16 can be determined based on the proposed approach.",
author = "Eunhyun Kwon and Jaiyong Lee and Kyunghun Jung and Shihoon Ryu",
year = "2005",
month = "9",
day = "30",
language = "English",
volume = "3510",
pages = "159--168",
journal = "Lecture Notes in Computer Science",
issn = "0302-9743",
publisher = "Springer Verlag",

}

A performance model for admission control in IEEE 802.16. / Kwon, Eunhyun; Lee, Jaiyong; Jung, Kyunghun; Ryu, Shihoon.

In: Lecture Notes in Computer Science, Vol. 3510, 30.09.2005, p. 159-168.

Research output: Contribution to journalConference article

TY - JOUR

T1 - A performance model for admission control in IEEE 802.16

AU - Kwon, Eunhyun

AU - Lee, Jaiyong

AU - Jung, Kyunghun

AU - Ryu, Shihoon

PY - 2005/9/30

Y1 - 2005/9/30

N2 - For systems based on connection-oriented services, such as IEEE 802.16, call admission control (CAC) strategy is essential to provide a desired level of quality of service (QoS). Although many handoff-prioritized CAC schemes, which assume a fixed channel capacity, have been introduced, this assumption is not always valid for IEEE 802.16 that uses adaptive modulation and coding (AMC). With AMC, the modulation type of a user's connection can be changed dynamically and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced CAC problem by focusing on the guaranteed connection. Three kinds of calls, new, handoff, and modulation-changed calls, are considered. We propose a modified guard channel CAC scheme that allows the modulation-changed and handoff calls to use the guard channel. Then we analyze a Markov model for the CAC scheme with long-term AMC in mind. According to the simulation results, the proposed approach reduces the call dropping probability for modulation-changed calls, which suggests the threshold of guard channels in IEEE 802.16 can be determined based on the proposed approach.

AB - For systems based on connection-oriented services, such as IEEE 802.16, call admission control (CAC) strategy is essential to provide a desired level of quality of service (QoS). Although many handoff-prioritized CAC schemes, which assume a fixed channel capacity, have been introduced, this assumption is not always valid for IEEE 802.16 that uses adaptive modulation and coding (AMC). With AMC, the modulation type of a user's connection can be changed dynamically and the ongoing connection might fail due to the change of modulation. In this paper, we approach the AMC-induced CAC problem by focusing on the guaranteed connection. Three kinds of calls, new, handoff, and modulation-changed calls, are considered. We propose a modified guard channel CAC scheme that allows the modulation-changed and handoff calls to use the guard channel. Then we analyze a Markov model for the CAC scheme with long-term AMC in mind. According to the simulation results, the proposed approach reduces the call dropping probability for modulation-changed calls, which suggests the threshold of guard channels in IEEE 802.16 can be determined based on the proposed approach.

UR - http://www.scopus.com/inward/record.url?scp=25144525018&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25144525018&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:25144525018

VL - 3510

SP - 159

EP - 168

JO - Lecture Notes in Computer Science

JF - Lecture Notes in Computer Science

SN - 0302-9743

ER -