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Mobile WiMAX Performance Investigation
[chapter]
2010
Radio Communications
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Let us assume now, for the sake of simplicity, that no packetization is performed at the MAC layer; each fragment is therefore mapped onto one MPDU with the addition of the MAC layer overhead of O M bytes ...
physical and MAC layers parameters. ...
Mobile WiMAX Performance Investigation, Radio Communications, Alessandro Bazzi (Ed.), ISBN: 978-953-307-091-9, InTech, Available from: http://www.intechopen.com/books/radio-communications/mobile-wimax-performanceinvestigation ...
doi:10.5772/9457
fatcat:i2aprfy5obcfndbtlsmyhrhyzy
WiMax/802.16 threat analysis
2005
Proceedings of the 1st ACM international workshop on Quality of service & security in wireless and mobile networks - Q2SWinet '05
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This paper examines threats to the security of the WiMax/ 802.16 broadband wireless access technology. Threats associated with the physical layer and MAC layer are reviewed in detail. ...
This work can be used to prioritize future research directions in WiMax/802.16 security. ...
The protocol architecture of WiMax/802.16 is structured into two main layers: the medium access control (MAC) layer and physical layer, see Figure 1 . ...
doi:10.1145/1089761.1089764
dblp:conf/mswim/Barbeau05
fatcat:yf747qv3ffhxnd7vh6uw25swr4
OFDMA WiMAX Physical Layer
[chapter]
2010
WiMAX Networks
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IEEE 802.16 physical (PHY) layer is characterized by Orthogonal Frequency Division Multiplexing (OFDM), Time Division Duplexing, Frequency division Duplexing, Quadrature Amplitude Modulation and Adaptive ...
Physical Layer 65
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer 77
OFDMA WiMAX Physical Layer 81
OFDMA WiMAX ...
WiMAX Physical Layer
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer 105
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer
OFDMA WiMAX Physical Layer 113
OFDMA ...
doi:10.1007/978-90-481-8752-2_2
fatcat:4cgvqpgi2bcbvbygdevtvcbf5u
Optimized Handover Schemes over WiMAX
[chapter]
2009
IFIP Advances in Information and Communication Technology
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Then we present a MAC Layer solution to guarantee the demanded bandwidth and supporting a higher possible throughput between two WiMAX end points during the handover. ...
Moreover, we propose a PHY and MAC layers scheme to maintain the required communication channel quality for VoIP during handover. ...
In addition to WiMAX PHY/MAC layers, there are three more functional entities essential to support Traffic Manager Server over WiMAX. ...
doi:10.1007/978-3-642-03841-9_30
fatcat:pqhpdxgq4vay5l4q5cho4ttbfq
An Assessment of WiMax Security
2010
Communications and Network
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We discuss the WiMax security mechanisms for authentication, encryption, and availability. We also discuss potential threats to WiMax security. ...
This paper will also discuss how and why these threats play an important role in the adaptability of WiMax. ...
Figure 1 shows the Protocol Stack for WiMax. The WiMax MAC layer uses a scheduling algorithm opposed to contention access used in the WiFi MAC layer. ...
doi:10.4236/cn.2010.22020
fatcat:bypeorzl7rfedgxgvdu27obd5u
WiMAX performance at 4.9 GHz
2010
2010 IEEE Aerospace Conference
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Worldwide Interoperability for Microwave Access (referred to as WiMAX) is a MAC and physical layer wireless communications technology for outdoor broadband wireless coverage. ...
In this paper, we present the results from a performance analysis we have conducted of the WiMAX network. ...
Similar to WiFi, Worldwide Interoperability for Microwave Access (referred to as WiMAX) is a MAC and physical layer wireless communications technology. ...
doi:10.1109/aero.2010.5446943
fatcat:w7rd6ui6rbcw5i2eomni5exksu
IPTV over WiMAX with MIPv6 Handovers
2009
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
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We employ two WiMAX testbeds deployed in Finland and Portugal, interconnected by GÉANT and quantify MIPv6 performance in a real-time multimedia streaming scenario over WiMAX. ...
The second contribution of this paper is a testbed evaluation of IPTV streaming over WiMAX. ...
IPV6 AND MIPV6 OVER WIMAX Deploying IPv6 over WiMAX networks requires that the essential PHY and MAC layer features of IEEE 802.16 standards are taken into consideration. ...
doi:10.1109/vetecs.2009.5073620
dblp:conf/vtc/PinolaP09
fatcat:icnmgckwazdndhn7k2esju43ky
IEEE 802.16m Reference Model and Protocol Structure
[chapter]
2011
Mobile WiMAX
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CHAPTER Mobile WiMAX. FIGURE 3-3 The IEEE 802.16 reference model [3] 3.1 The IEEE 802.16m reference model transformation or mapping of network-layer data packets into MAC SDUs. ...
, MAC common part sub-layer, security sub-layer, and physical layer. ...
WiMAX systems. ...
doi:10.1016/b978-0-12-374964-2.10003-7
fatcat:6qbqpfpqyzc5bji2mbefncc2qe
Improving Quality of VoIP Streams over WiMax
2008
IEEE transactions on computers
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In this paper, we exploit the rich set of flexible features offered at the medium access control (MAC) layer of WiMax for the construction and transmission of MAC protocol data units (MPDUs) for supporting ...
Simulation experiments are conducted to test the performance of the proposed mechanisms. We assume a three-state Markovian channel model and study the performance with and without retransmissions. ...
Next, we propose an adaptive mechanism that is implemented at the MAC layer of WiMax. ...
doi:10.1109/tc.2007.70804
fatcat:5ynh2jmcrncm5nkzg4fndotuya
WiMAX Capacity Estimations and Simulation Results
2008
VTC Spring 2008 - IEEE Vehicular Technology Conference
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In this paper, we propose some considerations for the WiMAX capacity. The developments realized for a WiMAX NS-2 module are presented. This module allows the evaluation of the WiMAX. ...
We present the spectrum efficiency and mean sojourn time of WiMAX determined through simulations for different scheduling algorithms. ...
SYSTEM MODEL The IEEE 802.16 standard defines the PHY and MAC layers. The PHY layer defines five physical interfaces. ...
doi:10.1109/vetecs.2008.399
dblp:conf/vtc/BelghithN08
fatcat:dmy72liu75fu7in32jc6uxsrrq
On Efficiency of ARQ and HARQ Entities Interaction in WiMAX Networks
[chapter]
2012
Advanced Transmission Techniques in WiMAX
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The extended simulations are performed considering various setting of parameters. The amount of generated overhead is the metric for the performance assessment. ...
All three error correction mechanisms are implemented on physical and/or Medium Access Control (MAC) layer. ...
The focus of the book is the physical layer, and it collects the contributions of many important researchers around the world. ...
doi:10.5772/28981
fatcat:npqwehwmajh63jmjiy4evntnwm
Experimental Evaluation of Multimedia Services in WiMAX
2008
Proceedings of the 4th International Mobile Multimedia Communications Conference
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We fill this gap by empirically quantifying the performance of different multimedia applications and scheduling services in a WiMAX testbed. ...
When resources are substantially over-provisioned, the WiMAX equipment performs well and application requirements are fulfilled as expected. ...
The MAC layer is divided into three sub layers: The servicespecific Convergence Sub layer (CS), the MAC Common Part Sub layer (CPS) and the security sublayer. ...
doi:10.4108/icst.mobimedia2008.3976
dblp:conf/mobimedia/SousaPC08
fatcat:5hyd5hkyubafrp7dbvejc7zspe
Measuring Data and VoIP Traffic in WiMAX Networks
[article]
2010
arXiv
pre-print
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Physical and MAC layer of this technology refer to the IEEE 802.16e standard, which defines 5 different data delivery service classes that can be used in order to satisfy Quality of Service (QoS) requirements ...
The main aim of the paper is to examine a case of QoS deployment over a cellular WiMAX network. ...
The difference is made up by overhead between the application layer and the MAC layer ( Figure 2 ). ...
arXiv:1004.4583v1
fatcat:vqd5nyluazcu5dw7iat45mt2pu
Inter-RAT Handover Between UMTS And WiMAX
[chapter]
2010
Radio Communications
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It must be stressed that this Layer 2 realization of B&F has better performance than IP layer realization like FMIPv6 thanks to the ability to directly operate Layer 2 data packets stored in one RAT. ...
the CMacBSSynchReq primitive to the WiMAX MAC Fig. 15. ...
assessment, routing issues in mobility conditions, localization, web security. ...
doi:10.5772/9467
fatcat:aqw5utkjzvbmba2cdqrndybxgq
Efficient Video Distribution over WiMAX-Enabled Networks for Healthcare and Video Surveillance Applications
[chapter]
2012
Quality of Service and Resource Allocation in WiMAX
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of Computing and Communications, UK Efficient video distribution in E-health systems via WiMAX technology 2.1 E-health environment and diligent communication platform Recent technological breakthrough ...
IEEE 802.16/WiMAX standard also allows application of encrypted functionalities via the MAC layer security features for healthcare data transmission. ...
We extended the functionality of the conventional classifier/analyzer module integrated in WiMAX MAC layer to a number of specific tasks required to support the proposed algorithm. ...
doi:10.5772/30628
fatcat:jijwq7fbjfg3xirgoc3hmye5nq
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