An efficient delay constrained scheduling scheme for IEEE 802.16 networks

Hou, Fen; Ho, Pin–Han; Shen, Xuemin

doi:10.1007/s11276-007-0077-y

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…In Fig. 1, a representation of the WiMAX network in PMP mode is shown [3]. The physical layer of WiMAX is based on the OFDM to which OFDMA was added in the 2005 version.…”

Section: Introductionmentioning

confidence: 99%

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

Karimi¹,

Yousefi²,

Azarpeyvand³

et al. 2012

IJWMT

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WiMAX networks based on IEEE 802.16 standard has expedited broadband wireless access surge in recent years. The traffic in these networks is identified in four types of class of service with different QoS requirements. Therefore, scheduling mechanism to manage these services in order to meet QoS requirements is a crucial fact and an important challenge. In this paper, for PMP mode of WiMAX networks, a two-level scheduling mechanism in MAC layer of Base Station (BS) has been proposed. The proposed scheduling algorithm takes into account hybrid unicast and multicast downlink traffic including three classes of service: rtps, nrtps and BE. In the first level of this scheduling mechanism, we have used the scheduling algorithms WRR and FCFS to schedule the connections and in its second level, the PQ algorithm based on Aging method is used to manage and schedule the packets. The functionality of the proposed scheduling algorithm is compared with priority queuing (PQ) algorithm. The resulting outcome of simulation shows that the proposed design has quite a better performance for Best Effort (BE) service class. Furthermore the delay of the rtps class and total throughput of the network is increased noticeably.

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“…In Fig. 1, a representation of the WiMAX network in PMP mode is shown [3]. The physical layer of WiMAX is based on the OFDM to which OFDMA was added in the 2005 version.…”

Section: Introductionmentioning

confidence: 99%

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

Karimi¹,

Yousefi²,

Azarpeyvand³

et al. 2012

IJWMT

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show abstract

“…Wimax (Acronym for Worldwide Interoperability for Microwave Access) is one of the hottest broadband wireless technologies around today. This paper focuses on the PMP mode (Hou et al, 2007). WiMAX systems are expected to deliver broadband access services to residential and enterprise customers in an economical way (Eklund et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Optimal pricing solution for VoIP service in 802.16/802.11 combined networks

Gupta

Singh

2012

IJITCC

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Future wireless networks are envisioned to be all IP and capable of running real time applications like VoIP. IEEE 802.16 and IEEE 802.11 based networks popularly known as Wimax and Wifi are already being widely used for internet and other services. The combined Wimax/Wifi scenario can be ideal public-private partnership solution for distributing VoIP-based telephony solutions in villages using Wimax-based private backbone operator and Wifi community network for end distribution. Internet bandwidth is still a scarce resource and should be used optimally from both the user as well as backbone service provider's point of view. Game theory can be effectively used for optimising service for both the parties in combined Wimax/Wifi scenarios. The results indicate that the utilities for both user and backbone service provider can be improved with cooperation between both parties. Third party broker agent realises cooperation between the two entities for an optimal solution. Using this approach, it is possible to obtain an optimal VoIP solution, which is beneficial for both user and backbone service provider.

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Discrete-time modeling for performance analysis of real-time services in IEEE 802.16 networks

Chuang¹,

Kao²

2010

Computer Communications

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An efficient delay constrained scheduling scheme for IEEE 802.16 networks

Cited by 5 publications

References 14 publications

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

Optimal pricing solution for VoIP service in 802.16/802.11 combined networks

Discrete-time modeling for performance analysis of real-time services in IEEE 802.16 networks

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