Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userEvaluation of Vertical Handover Performance between WiFi and WiMax Networks using Media Independent Handover
تقييم أداء التسليم الشاقولي بين الشبكاتWIFI و WIMAX باستخدام تقنية التسليم المستقل عن الوسط MIH
1126
1 20
4.0
(
1
)
Created by
Shamra Editor
Ask ChatGPT about the research
تتجه الأبحاث الحالية نحو المزيد من التطوير في الشبكات اللاسلكية، و ذلك نتيجة النمو في احتياجات المستخدمين كدعم تطبيقات الزمن الحقيقي، و جودة الخدمة و خصوصاً معدل نقل عالي للبيانات، و غيرها. ما دفع بمزودي خدمة الشبكات العمل على مكاملة العديد من موارد الشبكات المختلفة، و السعي لدعم خدمة الاتصال في أي مكان و زمان. من هنا تأتي أهمية هذا البحث الذي يهدف إلى دراسة عملية التسليم الشاقولي (Vertical Handover) كخطوة مهمة و ضرورية لتأمين حركة العقد المتحركة (MN(Mobile Nodes بين الشبكات اللاسلكية WiFi و WiMax باستخدام المعيار IEEE802.21، أو ما يسمى تقنية التسليم المستقل عن الوسط MIH (Media Independent Handover)، و الذي طُوّر في كانون الثاني 2009. في هذا البحث، تم تقييم أداء التسليم الشاقولي بين هاتين الشبكتين آخذين بالاعتبار عدة معاملات مثل: ضياع البيانات، و التأخير الناتج عن عملية التسليم، و معدل التدفق. و ذلك باستخدام المحاكي (NS2(Network Simulator version2)) و الذي يتضمن دعم لتقنية MIH من قبل المعهد الوطني للمعايير و التقانة (NIST) National Institute of Standard and Technology.
The current researches are moving towards more development in order to provide the growing the needs of users such as support real-time applications, quality of service, particularly; the high data rate transfer and other. That prompts the network service providers to integrate many properties for different networks resource, and support providing the service "anywhere and anytime". Hence, the importance of this research, which aims to study the vertical handover as very important and necessary step to provide the mobility of mobile nodes between the different networks by using Media Independent Handover (MIH) IEEE802.21standard which is developed in January 2009. In this paper, the performance of vertical handover between these two networks is evaluated taking into account many parameters such as packet loss, handover latency, and throughput, using NS2 simulator (Network Simulator version2) which includes a support for MIH technology by the National Institute of Standard and Technology (NIST).
References used
HAJAR,M.CHAHINE,M. HAMDAN ,R. "Reducing Handover Latency Time in Next Generation Wireless Networks Using IEEE802.21" , Master Thesis, 2013
PAYASWINI, P, MANJAIAH, D.H "Dynamic Vertical Handoff Algorithm Using Media Independent Handover Service for Heterogeneous Network" , MECS I.J. Information Technology and Computer Science, 2014, 12, 46-52
MARQUES, H. RIBEIRO,J. MARQUES, P.; RODRIGUEZ, J." Simulation of 802.21 Handovers Using ns-2" 2010
rate research
Read More
في هذه الأطروحة قمنا بدراسة أحد جوانب البحث في الشبكات اللاسلكية الكثيفة و هي إدارة الحركية، و ركزنا على أساليب و طرق إدارة الحركية الموزعة و التي تعتمد على بروتوكولات إدارة الحركية المعيارية MIPv6 و PMIPv6 ، درسنا هذه الطرق مع ذكر إيجابيات و سلبيات
كل منها و مقارنتها، ثم قمنا باقتراح خوارزمية جديدة لإدارة الحركية الموزعة بشكل كامل و التي تعتمد على بروتوكول PMIPv6
حيث يكون فيها مستوي البيانات و مستوي التحكم منفصلين و موزعين، و يتم تطبيقها في الشبكات اللاسلكية ذات البنية المسطحة الغير هرمية.
Nowadays, wireless networks are spreading more and more. The majority of installed networks have become wireless due to the simplicity of installation; where they do not need an infrastructure. This does not mean that the role of the wired networks i
s being eliminated. Instead, the wireless networks
are considered as a complementary of the wired networks. With all types of networks from personal and local area networks (PAN and LAN) to wide area networks (WAN) especially the Internet,
research has become oriented to focus on the quality of service (QoS) and the integration among all these networks taking into account the Internet which is considered as the backbone for each network that wants to exchange the information with any other network all over the world. In our research, we take into account the quality of service in the broadband networks such as the WiMax network (Worldwide Interoperability for Microwave Access) with IEEE 802.16e standard which covers cities and supports the mobility. This network can be used to interconnect the rural zones with the center of cities, this kind is called point-to-point, or it can be used to cover the cities and is called point-tomultipoint,
The last one is used to interconnect different wireless networks especially the local one which has infrastructure (Wi-fi: Wireless Fidelity) and networks which have many users and called
hotspots. However, the cells of Wi Max in the cities are called hotzones.
We propose a system model that performs the load balancing process between the base stations of WiMax network. This means, the proposed load balancing algorithm exchanges the terminals between the adjacent base stations in order to make the throughput in each base station equals to the throughput
in the others. This will improve the performance of the overall network and increase the available bandwidth for each terminal; in addition, this will increase the number of terminals which can be
served. On one side, these advantages return to the subscribers, they also return to the operator on the other side, not to mention the good renown that the operator will get from subscribers that will make more subscribers join to this network.
The proposed load balancing system can be centralized; implemented in a centralized server connected
to all base stations or distributed system implemented in each base station. The load balancing algorithm which consists of several steps is placed in a controller that achieves it. The load balancing process and the handover procedure have to be fast enough in order to prevent the adverse effect on
the quality of service especially for the real-time applications users.
Wireless Broadband is the meeting point between two of the most important growth stories in telecommunications industry . The broadband technologies have achieved great success in recent years , which is the same thing that happened with wireless com
munication technologies
Improving system performance in terms of data rate, latency, mobility and cost is the scope of Long Term Evolution (LTE) system. All IP architecture with distributed mobility management that have been implemented in LTE and the handover (HO) decision
is performed by the evolved base station (eNB). The ping-pong movement in LTE is one of the most crucial problems which reduce the performance of the HO. In this paper, the impact of ping-pong handover on inter eNB handover in LTE networks is investigated. The object of the present work is to provide a method for reducing the number of ping-pong HOs in intra E-UTRA networks. A novel HO algorithm, based on keeping the old path between the source eNB and SGW/MME during the ping-pong movement and delaying the completion HO part,
is presented. The ping-pong avoidance algorithm for intra E-UTRA can be a tool to reduce the number of ping-pong HOs and control the demands of the network resources. Analysis results -based on fuzzy logic technique- of the proposed algorithm showed that the
probability of ping-pong HO can be reduced efficiently as the difference between the received signal strength from the target and the source (SS(target-source)) and the timer value are higher than 3dB and 1.5 sec respectively.
Although the fact that VPN provide a safe and reliable transfer of customers’ data,
but the basic configurations on which they depend VPN and transport networks of
asynchronous (ATM) and Frame Relay networks (FR).Link, that depend on them these
te
chniques are relatively slow and cause a delay in time
With the rapid growth of the Internet and increase the load on the network in terms
of users and providers of service to look for ways of effective and fast routing packets of
data while ensuring quality of service began(QoS)and class of service(Cos)and secure
management and engineering movement(traffic) on the network and appeared the multiswitch
tags of the Protocol(MPLS)standard modern technique verify the previous
requirement safter she was initially way to improve the transmission speed routers.
This paper presents an analytical study on improving the performance of virtual
private networks using multi-protocol label switching( MPLS_VPN), by improving routing
operations on the third level, minimizing the delays and complexity resulting from the
routing on full internal routers in the traditional technical protocols settings and limited to
Edge routers in networks MPLS_VPN.
OPNET was used simulation software to get the results of the analysis and
simulation of new technology and compare it with the old technology.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
