Efficient QoS-based Scheduling Mechanisms for IEEE 802.16e Networks

Priya, M. Deva; Valarmathi, M. L.; Sundarameena, V.
June 2013
International Journal of Computer Applications;Jun2013, Vol. 72 Issue 1-23, p34
Academic Journal
Users have become more acquainted to broadband access. IEEE 802.16, a standard for broadband wireless communication in Metropolitan Area Networks (MAN) promises to be one of the best wireless access technologies capable of supporting very high bandwidth applications. The main objective of WiMAX is to deliver wireless communications with high Quality of Service (QoS) guarantees, security and mobility. Many scheduling algorithms compatible with the IEEE 802.16 standards are proposed in the literature with the tenacity of throughput optimization, fairness enhancement and QoS provisioning. However, few scheduling schemes minimize the delay involved. This paper proposes enhancements to the existing scheduling algorithms - Weighted Fair Queuing (WFQ) and Deficit Weighted Round Robin (DWRR). The performance of the existing and proposed algorithms is established by simulating the system under different scenarios. The Novel Weighted Fair Queuing (NWFQ) and Novel Deficit Weighted Round Robin (NDWRR) algorithms yield better Throughput and Packet Delivery Ratio (PDR) and involve less Delay, Jitter and Loss Rate. They are appropriate for scheduling particular types of services.


Related Articles

  • DESIGN AND IMPLEMENTATION OF IEEE 802.16 MAC LAYER SIMULATOR. Shamitha, H. M.; Guruprasad, H. M.; Kishore, M.; Ramesh, K. // International Journal of Advances in Engineering & Technology;Nov2012, Vol. 5 Issue 1, p462 

    The IEEE 802.16 Wireless MAN is a broadband wireless access network, which provides high-rate network connections to stationary sites, operates over greater distances, provides more bandwidth, takes advantage of a broader range of frequencies, and supports a greater variety of deployment...

  • Design and implementation of a new scheduler for enhancing multi-rate fairness in IEEE 802.16. Andreadis, Alessandro; Rizzuto, Sandro; Zambon, Riccardo // Telecommunication Systems;Nov2014, Vol. 57 Issue 3, p247 

    Without the definition of a mandatory scheduling algorithm for channel resource assignment, WiMAX is open to Quality of Service (QoS) enhancements by research groups and developers, at the aim of managing heterogeneous flows with different QoS requirements. Furthermore, besides performance...

  • Design of Miniature Patch Antenna Around the Frequency 3.5 GHz for WIMAX Technology. Adnane-Latif // International Journal of Computer Science Issues (IJCSI);Jan2012, Vol. 9 Issue 1, p357 

    This work aims to study a miniature rectangular patch antenna λ / 8 fed by coaxial probe with the transmission line method (TLM). The design and simulation of this antenna is around the frequency of 3.5GHz, for WIMAX technology. The results obtained (input impedance, reflection coefficient,...

  • A Performance Evaluation Study of WiMAX Using Qualnet. Shuaib, Khaled A. // World Congress on Engineering 2009 (Volume 1);2009, p912 

    IEEE802.16 is the standard defining the Worldwide Interoperability for Microwave Access (WiMAX) for Metropolitan Area Network (MAN). WiMAX has recently being considered by Internet Service Providers (ISPs) as an attractive alternative to leasing lines from current ISPs or the deployment of new...

  • Performance evaluation of the MAC protocol in IEEE 802.16 systems with data and VoiP traffic scheduling. Fantacci, Romano; Tarchi, Daniele; Bardazzi, Marco // Wireless Communications & Mobile Computing;Jan2009, Vol. 9 Issue 1, p35 

    In the last few years, the metropolitan area networks (MAN) have increased their popularity and attracted the interest of the most important research groups all over the world. Among several standards, IEEE 802.16 has taken a relevant role providing high data rate in a big covering range with...

  • Cross-Layer QoS Scheduling for Layered Multicast Streaming in OFDMA Wireless Networks. Yuedong Xu; Xiaoxin Wu; Lui, John // Wireless Personal Communications;Dec2009, Vol. 51 Issue 3, p565 

    The conventional multicast scheme of wireless networks, though establishing a bandwidth-saving means for point-to-multipoint transmission, is very conservative by limiting the throughput of short-range communications. The multicast performance can be significantly improved if some low-rate users...

  • A New Distributed Scheduling Algorithm for Bandwidth Allocation in IEEE 802.16 Mesh Networks. Grine, Mostafa; Messoussi, Rochdi; Najid, Abdallah // British Journal of Mathematics & Computer Science;Oct-Dec2013, Vol. 3 Issue 4, p711 

    Multi-hop WiMAX networks has the potential of easily providing high-speed wireless broadband access to areas with little or no existing wired infrastructure. IEEE 802.16 incorporates the quality of service (QoS) mechanisms at the Media Access Control (MAC) level, but it doesn't define a specific...

  • Comparative Study on Hybrid Header Compression over Satellite–Wireless Networks. Yung-Wey Chong; Tat-Chee Wan // IETE Technical Review;Nov/Dec2013, Vol. 30 Issue 6, p461 

    The integration of wireless terrestrial (e.g. WiFi, LTE, WiMAX) and satellite networks is an effective approach in providing anytime, anywhere connectivity to sparsely populated areas. Although hybrid satellite-wireless system seems to be an ideal network, transporting IP-based packet via...

  • Bandwidth Allocation Scheduling Algorithms for IEEE 802.16 WiMax Protocol to Improve QoS: A Survey. Kaur, Avinash; Singh, Harvinder; Sharma, Parveen // International Journal of Computer Applications;Jul2014, Vol. 98, p16 

    In recent times, wireless network is extensively accessed technology to connect remote user terminal with its primary network. QoS is the vital parameter that can be treated wisely when data is transferred between terminal users and network administrators. In WiMax, QoS is determined accurately...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics