Uplink and downlink scheduling for point to multipoint WiMAX Networks

Mohammad Hayajneh, Najah Abu Ali, Issa Khalil

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

IEEE 802.16 standard lacks a Media Access Control (MAC) scheduling architecture to enforce Quality of Service (QoS) requirements of different services classes. In this paper, we propose an opportunistic and optimized scheduler that meets connections' QoS requirements while it pledges fairness among admitted connections. Our approach involves separating the scheduling problem into two sub-problems. In the first sub-problem, which addresses interclass time-slots allocation, the proposed scheduler calculates the optimum number of time-slots in each time frame corresponding to the service classes with the objective of minimizing the blocking probability of each class. In the second sub-problem, the intraclass slot allocation problem, time-slots for each class are allocated using an integrated cross-layer priority functions (PFs) that provide proportional fairness among a class connections. The simulation results reveal that the proposed scheduler realizes our objectives, and provides efficient QoS scheduling without starving the connections of the BE class.

Original languageEnglish
Pages (from-to)1231-1242
Number of pages12
JournalWireless Communications and Mobile Computing
Volume9
Issue number9
DOIs
Publication statusPublished - 1 Sep 2009
Externally publishedYes

Fingerprint

Quality of service
Scheduling
Blocking probability
Medium access control

Keywords

  • Access networks
  • QoS
  • RRM
  • Scheduling
  • WiMax

ASJC Scopus subject areas

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

Cite this

Uplink and downlink scheduling for point to multipoint WiMAX Networks. / Hayajneh, Mohammad; Ali, Najah Abu; Khalil, Issa.

In: Wireless Communications and Mobile Computing, Vol. 9, No. 9, 01.09.2009, p. 1231-1242.

Research output: Contribution to journalArticle

@article{21d7b60bad32434d9ffa5b5c0217d528,
title = "Uplink and downlink scheduling for point to multipoint WiMAX Networks",
abstract = "IEEE 802.16 standard lacks a Media Access Control (MAC) scheduling architecture to enforce Quality of Service (QoS) requirements of different services classes. In this paper, we propose an opportunistic and optimized scheduler that meets connections' QoS requirements while it pledges fairness among admitted connections. Our approach involves separating the scheduling problem into two sub-problems. In the first sub-problem, which addresses interclass time-slots allocation, the proposed scheduler calculates the optimum number of time-slots in each time frame corresponding to the service classes with the objective of minimizing the blocking probability of each class. In the second sub-problem, the intraclass slot allocation problem, time-slots for each class are allocated using an integrated cross-layer priority functions (PFs) that provide proportional fairness among a class connections. The simulation results reveal that the proposed scheduler realizes our objectives, and provides efficient QoS scheduling without starving the connections of the BE class.",
keywords = "Access networks, QoS, RRM, Scheduling, WiMax",
author = "Mohammad Hayajneh and Ali, {Najah Abu} and Issa Khalil",
year = "2009",
month = "9",
day = "1",
doi = "10.1002/wcm.688",
language = "English",
volume = "9",
pages = "1231--1242",
journal = "Wireless Communications and Mobile Computing",
issn = "1530-8669",
publisher = "John Wiley and Sons Ltd",
number = "9",

}

TY - JOUR

T1 - Uplink and downlink scheduling for point to multipoint WiMAX Networks

AU - Hayajneh, Mohammad

AU - Ali, Najah Abu

AU - Khalil, Issa

PY - 2009/9/1

Y1 - 2009/9/1

N2 - IEEE 802.16 standard lacks a Media Access Control (MAC) scheduling architecture to enforce Quality of Service (QoS) requirements of different services classes. In this paper, we propose an opportunistic and optimized scheduler that meets connections' QoS requirements while it pledges fairness among admitted connections. Our approach involves separating the scheduling problem into two sub-problems. In the first sub-problem, which addresses interclass time-slots allocation, the proposed scheduler calculates the optimum number of time-slots in each time frame corresponding to the service classes with the objective of minimizing the blocking probability of each class. In the second sub-problem, the intraclass slot allocation problem, time-slots for each class are allocated using an integrated cross-layer priority functions (PFs) that provide proportional fairness among a class connections. The simulation results reveal that the proposed scheduler realizes our objectives, and provides efficient QoS scheduling without starving the connections of the BE class.

AB - IEEE 802.16 standard lacks a Media Access Control (MAC) scheduling architecture to enforce Quality of Service (QoS) requirements of different services classes. In this paper, we propose an opportunistic and optimized scheduler that meets connections' QoS requirements while it pledges fairness among admitted connections. Our approach involves separating the scheduling problem into two sub-problems. In the first sub-problem, which addresses interclass time-slots allocation, the proposed scheduler calculates the optimum number of time-slots in each time frame corresponding to the service classes with the objective of minimizing the blocking probability of each class. In the second sub-problem, the intraclass slot allocation problem, time-slots for each class are allocated using an integrated cross-layer priority functions (PFs) that provide proportional fairness among a class connections. The simulation results reveal that the proposed scheduler realizes our objectives, and provides efficient QoS scheduling without starving the connections of the BE class.

KW - Access networks

KW - QoS

KW - RRM

KW - Scheduling

KW - WiMax

UR - http://www.scopus.com/inward/record.url?scp=69049103292&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=69049103292&partnerID=8YFLogxK

U2 - 10.1002/wcm.688

DO - 10.1002/wcm.688

M3 - Article

AN - SCOPUS:69049103292

VL - 9

SP - 1231

EP - 1242

JO - Wireless Communications and Mobile Computing

JF - Wireless Communications and Mobile Computing

SN - 1530-8669

IS - 9

ER -