Results 161 to 170 of about 10,965 (186)

Modeling IEEE 802.16 (WiMAX) Protocol

2015
The IEEE 802.16 (WiMAX) provides a wireless high speed access (2–11 GHz) to users through a centralized base station that can cover several thousand square kilometers. In that sense, WiMAX is a metropolitan area network (MAN). The base stations are connected together and to the rest of the Internet using high speed wired links or microwave links.
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Overall Delay Analysis of IEEE 802.16 Network

2009 IEEE International Conference on Communications Workshops, 2009
In this paper we conduct a delay analysis of IEEE 802.16 wireless metropolitan area network. In particular, we address the overall message delay, which consists of the reservation and scheduling components. Unicast polling is used for bandwidth reservation and round-robin scheduling is applied at the base station.
S. Andreev, Z. Saffer, A. Anisimov
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Security of IEEE 802.16 in Mesh Mode

MILCOM 2006, 2006
IEEE 802.16 (WiMAX) has been seen as a promising technique for future mesh networks to provide broadband wireless access. Meanwhile, its security is becoming a critical issue with the proliferation of wireless threats in current IEEE 802.11 systems.
Yun Zhou, Yuguang Fang
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Optimal MAC PDU Size in IEEE 802.16

2008 4th International Telecommunication Networking Workshop on QoS in Multiservice IP Networks, 2008
In the IEEE 802.16 the number of errors and the MAC PDU size have an impact on the performance of the network. We present a way to estimate the optimal PDU size and we run a number of simulation scenarios to study these parameters and how they impact on the performance of application protocols.
Henrik Martikainen, Alexander Sayenko, Olli Alanen, Vitaliy Tykhomyrov   +3 more
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Dynamic Bandwidth Allocation in IEEE 802.16

2006
IEEE 802.16 has gained significant research attention because of its broadband wireless services over a large coverage area. Bandwidth allocation plays very important role at the link layer of IEEE 802.16. In this paper, by considering the Automatic Repeat reQuest (ARQ) scheme for an erroneous wireless channel, a dynamic bandwidth allocation algorithm ...
Weiwei Wang, Zihua Guo, Xuemin (Sherman) Shen, Changjia Chen, Jun Cai   +4 more
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An Integrated Uplink Scheduler in IEEE 802.16

2008 Second UKSIM European Symposium on Computer Modeling and Simulation, 2008
The absence of algorithms for quality of service (QoS) scheduling algorithms in the 802.16 standard allows vendors to develop their own algorithms for bandwidth allocation and service differentiation of their product. Deficit round robin (DRR) scheduling algorithm which provides fair queuing at O(1) complexity. However, due to its round robin structure,
Elmabruk Laias, Irfan Awan, Pauline M.L. Chan   +2 more
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IEEE 802.16: History, status and future trends

Computer Communications, 2010
Over the last few years, IEEE 802.16 has been established as one of the most promising solutions for broadband wireless metropolitan area networks. In 2007, the standard was included as one of the radio access technologies for IMT-2000. The forthcoming version of the standard, IEEE 802.16m, is currently under evaluation by ITU as a radio technology for
BACIOCCOLA A, CICCONETTI, CLAUDIO, EKLUND C, LENZINI, LUCIANO, LI Z, MINGOZZI, ENZO   +5 more
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Fast predicted handover in IEEE 802.16 networks

European Transactions on Telecommunications, 2010
AbstractThe handover procedure can have a negative impact on the quality of service due to the short break in the connection. This paper proposes a modification of the hard handover procedure to enable reduction of the handover interruption time by exploiting the results of a handover prediction.
Becvar Z., MacH P.
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Cross Layer Scheduling Algorithm for IEEE 802.16

2008 IEEE International Conference on Communications, 2008
In order to support different types of user applications, the IEEE 802.16 standard defines different service classes together with their associated Quality of Service (QoS) parameters. However, the standard lacks a MAC scheduling architecture that guarantees these defined QoS requirements.
N. Abu Ali, M. Hayajneh, H. Hassanein
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Reliability Analysis of IEEE 802.16 Mesh Networks

2007 2nd IEEE/IFIP International Workshop on Broadband Convergence Networks, 2007
The problem of terminal-pair reliability has been extensively studied for wired computer networks, however comparatively less research has been done on the reliability of wireless networks. With mesh networks becoming a more attractive option than the traditional point- to-multipoint network design due to extended coverage and increased overall link ...
Stephen Dominiak, Nico Bayer, Joachim Habermann, Veselin Rakocevic, Bangnan Xu   +4 more
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