Modeling and optimization of bandwidth request procedure in IEEE 802.16 networks

Latkoski, Pero; Hadzi-Velkov, Zoran; Popovski, Borislav

doi:10.1109/pimrc.2010.5671977

Cited by 2 publications

(7 citation statements)

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“…In particular, the case study extends the findings proposed by (Latkoski, 2010), and provides the needed validation of the analytical and numerical analysis contained in (Latkoski, 2010).…”

Section: Case Studysupporting

confidence: 66%

“…The WiMAX channel access is controlled by one of the several available Medium Access Control (MAC) procedures. (Latkoski, 2010) studies the contention-based bandwidth request procedure based on original analytical model, facilitated by numerical analysis. In (Latkoski, 2010) the key parameters of the contention procedure are optimized in order to minimize the average bandwidth access delay, thus ensuring the highest possible quality of service (QoS) to the WiMAX users.…”

Section: Case Studymentioning

confidence: 99%

“…4) presents the results regarding maxN suc /n for different number of active SSs (n) and different number of transmission slots per frame (N r ). The results are obtained by using the analytical equations provided by (Latkoski, 2010). Furthermore, Fig.…”

Section: Multicast-grouping Based Bandwidth Accessmentioning

confidence: 99%

“…For this purpose we have used the equations provided by (Latkoski, 2010) The range of values where n ≈ N all (right part of the figure) is more appropriate for roundrobin polling scheme utilization, compared to the contention-based scheme.…”

Section: Round Robin Polling Bandwidth Accessmentioning

confidence: 99%

“…2. After a training period of 5 seconds, the Estimator sends to the Optimizer estimated values for the number of active SSs (n) and information regarding their activity dynamics (q), please refer to (Latkoski, 2010 …”

Section: Sdl Modelsmentioning

confidence: 99%

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Engineering of Communication Systems and Protocols

Latkoski¹,

Popovski²

2012

Wireless Communications and Networks - Recent Advances

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The complexity of the communication systems and protocols is increasing constantly, while the communication products' time-to-market is becoming shorter. Afterthoughts communication system redesign due to lack of performance is financially and time expensive, and it is unacceptable. This book chapter proposes a method for improving the telecommunication systems, by means of enhancement the performance of the protocols they rely on. The proposed engineering of communication systems is based on a formal method and it provides an early-phase performance evaluation of the underlying communication protocols. The methodology is illustrated through a hands-on case study conducted on an existing wireless communication system. The development and standardization of new telecommunication and information technologies is a rather complex process which requires a comprehensive framework (Sherif, 2001). The result of such a process is a new agreement that should satisfy all of the involved parties, such as: vendors, providers, and most importantly service users. To create a comprehensive communication standard and consequently a reliable communication system, many strategic and tactical issues need to be considered. The missing question is how to produce a standard that specifies a protocol or a system with high performance. The lack of performance issue might be a major cause for pitfall of entire communication systems. Most of the problems result from poor protocol specifications or from its enormous complexity. Furthermore, the design errors caused by the short and intensive creation period usually remain hidden until the testing and implementation phases of the communication product development. Fixing the problems after product's delivery for communication software and hardware increases the cost of the product by factor of 100 to 1000 compared to the fixing of the problem in the analysis phase.High performance communication protocols which are untainted of functional errors are crucial in the telecommunications sector where product expectation cycle is denominated in decades instead of years. In order to develop such a protocol, two aspects should be fulfilled: introduction of formal methods during the specification process and integration of the performance-related activities in the early phases of the communication system specification and development. The former one is already taking place as a result of the need www.intechopen.com Wireless Communications and Networks -Recent Advances

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“…In particular, the case study extends the findings proposed by (Latkoski, 2010), and provides the needed validation of the analytical and numerical analysis contained in (Latkoski, 2010).…”

Section: Case Studysupporting

confidence: 66%

Section: Case Studymentioning

confidence: 99%

Section: Multicast-grouping Based Bandwidth Accessmentioning

confidence: 99%

Section: Round Robin Polling Bandwidth Accessmentioning

confidence: 99%

Section: Sdl Modelsmentioning

confidence: 99%

See 3 more Smart Citations

Engineering of Communication Systems and Protocols

Latkoski¹,

Popovski²

2012

Wireless Communications and Networks - Recent Advances

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Cost-effective quality assurance of wireless network security

Cameron

Brooks

Deng

2013

Proceedings of the Eighth Annual Cyber Security and Information Intelligence Research Workshop

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Wireless communication is a common part of modern society, incorporated into new products and services bringing additional security risks and requirements. To meet these needs and assure quality assurance, thorough wireless security testing needs to be completed before new products or services are released. Meticulous testing is expensive, consuming resources and time. This paper presents a general method for network security analysis and experimentation that reduces time and costs. Factorial experiment design tests multiple factors in parallel, while producing robust, repeatable and statistically significant results by treating all other parameters as noise when testing first order effects. Also, second and third order effects can be analyzed with less significance. This paper presents this approach used in the experimental design and statistical analysis of a WiMAX denial of service (DoS) attack targeting bandwidth contention resolution system parameters of IEEE 802.16e. We outline how this approach can be used as a cost-effective method for network security analysis.

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Modeling and optimization of bandwidth request procedure in IEEE 802.16 networks

Cited by 2 publications

References 10 publications

Engineering of Communication Systems and Protocols

Engineering of Communication Systems and Protocols

Cost-effective quality assurance of wireless network security

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