The Experts below are selected from a list of 39894 Experts worldwide ranked by ideXlab platform
William D. Ivancic - One of the best experts on this subject based on the ideXlab platform.
-
GLOBECOM Workshops - Scalability analysis of a multihomed network Mobility Protocol
2011 IEEE GLOBECOM Workshops (GC Wkshps), 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Previous studies have analyzed cost and performance of multihomed network Mobility management Protocols, such as, Seamless IP diversity-based Network Mobility management scheme (SINEMO). However, increase in the number of mobile nodes raises scalability issues which can result in its performance degradation. In this paper, we have developed analytical models for scalability analysis of SINEMO in terms of network size, Mobility rate, and traffic rate. We have used numerical results to validate the analytical model and compared scalability with basic Network Mobility (NEMO) Protocol. Results show that the network-Mobility Protocols exhibit asymptotically identical scalability for the network though the Mobility agent of SINEMO scales better than NEMO. This scalability model can help in quantitative scalability analysis of other Mobility Protocols, thereby visualizing the effects of future network expansion on the performance of the Mobility Protocols.
-
Security vulnerabilities and protection mechanisms of Mobility management Protocols
2011 Aerospace Conference, 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Mobility Protocols are originally proposed to support ongoing Internet connectivity of hosts or networks in motion. However, the requirement of seamless connectivity in mobile environment and use of route optimization between the communicating nodes have introduced several security vulnerabilities to Mobility Protocols. In this paper, we explain with illustrative examples major security threats on various components of the network involving the Mobility Protocol. We have analyzed critically several existing security solutions that have been proposed to prevent or mitigate security attacks on Mobility Protocols. We have also identified additional security holes of these existing solutions and propose some simple mechanisms to counter them.
-
HPCC - Scheduling and Queue Management for Multi-class Traffic in Access Router of Mobility Protocol
2010 IEEE 12th International Conference on High Performance Computing and Communications (HPCC), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:The traffic characteristics in recent years have changed considerably having more video and audio traffic with critical real-time constraints. This situation is compounded by the increased number of mobile nodes communicating over Internet. Due to such high data traffic, the access routers are often overloaded with packets with different priority. The access routers have to act quickly enough to avoid loss of connection of mobile nodes' ongoing communication. However, there is a lack of analytical models that focus on the internal queue management access router of IP-Mobility Protocols. In this paper, we have developed an analytical model using multi-class non-preemptive priority queues to measure average queuing delay, queue occupancy, and packet drop probability for different classes of data and signaling traffic in the access router. We present numerical results that reflects the impact of node density, service rate and traffic pattern on these measures. The analytical framework presented in this paper will be helpful to better manage access routers with different classes of data and signaling traffic causing least queuing delay and packet loss.
-
Cost analysis of NEMO Protocol entities
2010 13th International Conference on Computer and Information Technology (ICCIT), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:To support IP-Mobility of networks in motion, IETF proposed Network Mobility (NEMO) Protocol that uses various signaling messages to ensure connectivity of the mobile nodes with the Internet. However, there has been no comprehensive cost analysis of Mobility Protocol entities that considers all possible costs. In this paper, we have developed analytical models to estimate total costs of key Mobility management entities of NEMO. We have presented numerical results to demonstrate the impact of network size, Mobility rate, traffic rate and data volume on these costs. Our cost analysis will thus help network engineers in estimating actual resource requirements for the key entities of the network in future design.
Hamid Aghvami - One of the best experts on this subject based on the ideXlab platform.
-
PIMRC - The Reconfigurable IP Mobility Component: Benchmarking Mobility Protocol Implementations
2007 IEEE 18th International Symposium on Personal Indoor and Mobile Radio Communications, 2007Co-Authors: K. Boukis, N. Georganopoulos, Hamid AghvamiAbstract:This paper presents a mobile terminal architecture that can dynamically reconfigure between different Mobility management Protocols. Our main goal is to design an architecture that minimizes the required changes in its operation. This is achieved through the development of a generic Mobility component, a composite entity capable of modeling the analyzed Mobility Protocols. When reconfiguring to a new Mobility Protocol only distinct functional parts of the generic Mobility component are modified; functional parts that are common are not affected. The reconfiguration procedure is coordinated by another functional entity, the generic Mobility component manager. Further, we compare the reconfigurable architecture's performance in terms of received application data and terminal Protocol processing delay against of-the-shelf Mobility Protocol implementations, including mobile IPv6 and BCMPv1.
-
PIMRC - The Reconfigurable IP Mobility Component: Simultaneous Operation of Micro/Macro Mobility Protocols
2006 IEEE 17th International Symposium on Personal Indoor and Mobile Radio Communications, 2006Co-Authors: K. Boukis, N. Georganopoulos, Hamid AghvamiAbstract:This paper describes the evaluation of a flexible reconfigurable IP-based terminal architecture, supporting interoperation among macro and micro Mobility management Protocols. It is a generic component architecture that can intelligently change at runtime the operating Mobility Protocol, according to the available access networks. Further, it can transparently combine multiple Protocols, for micro and macro Mobility cooperation. This paper describes the performance evaluation results when operating the flexible reconfigurable terminal with combined macro Mobility, Mobile IPv6, together with micro Mobility, Hierarchical Mobile IPv6 or BCMPv6.
-
VTC Fall - The Reconfigurable IP Mobility Component: Evaluation of Single Protocol Operation
IEEE Vehicular Technology Conference, 2006Co-Authors: K. Boukis, N. Georganopoulos, Hamid AghvamiAbstract:This paper presents the design and evaluation of a reconfigurable mobile terminal focusing on IP Mobility Protocols. The presented terminal architecture is capable of dynamically modifying its operation so as to employ the Mobility services offered from the visited access networks. The fundamental concept in the architecture is that Mobility Protocols terminal operation can be modeled with a certain group of functional abstractions. As a consequence, only a few particular functional parts of the architecture need to be modified so as to implement a new Mobility Protocol. Evaluation results show that the terminal performance complies with the expected behavior and, further, that the reconfiguration process is accomplished within a few milliseconds.
-
GLOBECOM - A hardware implementation of BCMP Mobility Protocol for IPv6 networks
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 1Co-Authors: C. Boukis, N. Georganopoulos, Hamid AghvamiAbstract:This paper presents the results of the development and evaluation of the IP Mobility Protocol BRAIN candidate Mobility management Protocol (BCMP) using a real IPv6 network environment. BCMP is an intra domain Mobility Protocol i.e. it handles user Mobility within an administrative domain. The Protocol setup is based on a focal point in the network, called anchor point, from whereon dynamic tunnel establishment to MH's points-of-attachment is deployed. We show all Protocol stages and their impact during the communication phases of MHs in the network including the logins, packet transfers and handovers. The work presented in this paper is part of the research conducted in the EU sponsored project MIND.
Shohrab Hossain - One of the best experts on this subject based on the ideXlab platform.
-
GLOBECOM Workshops - Scalability analysis of a multihomed network Mobility Protocol
2011 IEEE GLOBECOM Workshops (GC Wkshps), 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Previous studies have analyzed cost and performance of multihomed network Mobility management Protocols, such as, Seamless IP diversity-based Network Mobility management scheme (SINEMO). However, increase in the number of mobile nodes raises scalability issues which can result in its performance degradation. In this paper, we have developed analytical models for scalability analysis of SINEMO in terms of network size, Mobility rate, and traffic rate. We have used numerical results to validate the analytical model and compared scalability with basic Network Mobility (NEMO) Protocol. Results show that the network-Mobility Protocols exhibit asymptotically identical scalability for the network though the Mobility agent of SINEMO scales better than NEMO. This scalability model can help in quantitative scalability analysis of other Mobility Protocols, thereby visualizing the effects of future network expansion on the performance of the Mobility Protocols.
-
Security vulnerabilities and protection mechanisms of Mobility management Protocols
2011 Aerospace Conference, 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Mobility Protocols are originally proposed to support ongoing Internet connectivity of hosts or networks in motion. However, the requirement of seamless connectivity in mobile environment and use of route optimization between the communicating nodes have introduced several security vulnerabilities to Mobility Protocols. In this paper, we explain with illustrative examples major security threats on various components of the network involving the Mobility Protocol. We have analyzed critically several existing security solutions that have been proposed to prevent or mitigate security attacks on Mobility Protocols. We have also identified additional security holes of these existing solutions and propose some simple mechanisms to counter them.
-
HPCC - Scheduling and Queue Management for Multi-class Traffic in Access Router of Mobility Protocol
2010 IEEE 12th International Conference on High Performance Computing and Communications (HPCC), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:The traffic characteristics in recent years have changed considerably having more video and audio traffic with critical real-time constraints. This situation is compounded by the increased number of mobile nodes communicating over Internet. Due to such high data traffic, the access routers are often overloaded with packets with different priority. The access routers have to act quickly enough to avoid loss of connection of mobile nodes' ongoing communication. However, there is a lack of analytical models that focus on the internal queue management access router of IP-Mobility Protocols. In this paper, we have developed an analytical model using multi-class non-preemptive priority queues to measure average queuing delay, queue occupancy, and packet drop probability for different classes of data and signaling traffic in the access router. We present numerical results that reflects the impact of node density, service rate and traffic pattern on these measures. The analytical framework presented in this paper will be helpful to better manage access routers with different classes of data and signaling traffic causing least queuing delay and packet loss.
-
Cost analysis of NEMO Protocol entities
2010 13th International Conference on Computer and Information Technology (ICCIT), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:To support IP-Mobility of networks in motion, IETF proposed Network Mobility (NEMO) Protocol that uses various signaling messages to ensure connectivity of the mobile nodes with the Internet. However, there has been no comprehensive cost analysis of Mobility Protocol entities that considers all possible costs. In this paper, we have developed analytical models to estimate total costs of key Mobility management entities of NEMO. We have presented numerical results to demonstrate the impact of network size, Mobility rate, traffic rate and data volume on these costs. Our cost analysis will thus help network engineers in estimating actual resource requirements for the key entities of the network in future design.
-
GLOBECOM - Stochastic Properties and Application of City Section Mobility Model
GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009Co-Authors: Shohrab Hossain, Mohammed AtiquzzamanAbstract:Node Mobility has a direct impact on the performance evaluation of various network Mobility Protocols. Unfortunately, most of the analysis on Mobility Protocols used Random Waypoint Mobility model which does not represent real-world movement patterns of mobile nodes. In this paper, we have analyzed City Section Mobility model, a realistic Mobility model for the movement in the city streets. We have developed an analytical model to derive certain stochastic properties, such as, expected epoch length, expected epoch time, expected number of subnet crossings and subnet residence time of this model. Finally, we have applied the model to calculate the signaling cost of NEMO BSP and compared it with Random Waypoint Mobility model. Results show that the use of realistic Mobility model leads to better estimation of the signaling cost of network Mobility Protocol.
Heidi A.b. Smith - One of the best experts on this subject based on the ideXlab platform.
-
Outcomes Associated with a Pediatric Intensive Care Unit Early Mobility Protocol
Pediatrics, 2020Co-Authors: Stacey Williams, Kristina A. Betters, Katherine Hedden, Camille Marsden, Jennifer Pearson, Heidi A.b. SmithAbstract:Title: Outcomes Associated with a Pediatric Intensive Care Unit Early Mobility Protocol Authors: Kristina Ann Betters MD, FAAP, Stacey Williams CPNP-AP, Katherine Hedden PT, DPT, PCS, Camille Marsden MOT/OTR-L, Jennifer Pearson MS/OTR-L, and Heidi Smith MD MSCI Purpose: Intensive care unit (ICU) guidelines recommend early …
Mohammed Atiquzzaman - One of the best experts on this subject based on the ideXlab platform.
-
Scheduling and Queue Management for Multi-class Traffic in Access Router of Mobility Protocol
2016Co-Authors: Md. Shohrab Hossain, Mohammed Atiquzzaman, William IvancicAbstract:Abstract—The traffic characteristics in recent years have changed considerably having more video and audio traffic with critical real-time constraints. This situation is compounded by the increased number of mobile nodes communicating over Internet. Due to such high data traffic, the access routers are often overloaded with packets with different priority. The access routers have to act quickly enough to avoid loss of connection of mobile nodes ’ ongoing communication. However, there is a lack of analytical models that focus on the internal queue management access router of IP-Mobility Protocols. In this paper, we have developed an analytical model using multi-class non-preemptive priority queues to measure average queuing delay, queue occupancy, and packet drop probability for different classes of data and signaling traffic in the access router. We present numerical results that reflects the impact of node density, service rate and traffic pattern on these measures. The analytical framework presented in this paper will be helpful to better manage access routers with different classes of data and signaling traffic causing least queuing delay and packet loss. Index Terms—Mobility Protocols, analytical modeling, schedul-ing algorithm, queuing delay, real-time traffic, multi-class traffic I
-
GLOBECOM Workshops - Scalability analysis of a multihomed network Mobility Protocol
2011 IEEE GLOBECOM Workshops (GC Wkshps), 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Previous studies have analyzed cost and performance of multihomed network Mobility management Protocols, such as, Seamless IP diversity-based Network Mobility management scheme (SINEMO). However, increase in the number of mobile nodes raises scalability issues which can result in its performance degradation. In this paper, we have developed analytical models for scalability analysis of SINEMO in terms of network size, Mobility rate, and traffic rate. We have used numerical results to validate the analytical model and compared scalability with basic Network Mobility (NEMO) Protocol. Results show that the network-Mobility Protocols exhibit asymptotically identical scalability for the network though the Mobility agent of SINEMO scales better than NEMO. This scalability model can help in quantitative scalability analysis of other Mobility Protocols, thereby visualizing the effects of future network expansion on the performance of the Mobility Protocols.
-
Security vulnerabilities and protection mechanisms of Mobility management Protocols
2011 Aerospace Conference, 2011Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:Mobility Protocols are originally proposed to support ongoing Internet connectivity of hosts or networks in motion. However, the requirement of seamless connectivity in mobile environment and use of route optimization between the communicating nodes have introduced several security vulnerabilities to Mobility Protocols. In this paper, we explain with illustrative examples major security threats on various components of the network involving the Mobility Protocol. We have analyzed critically several existing security solutions that have been proposed to prevent or mitigate security attacks on Mobility Protocols. We have also identified additional security holes of these existing solutions and propose some simple mechanisms to counter them.
-
HPCC - Scheduling and Queue Management for Multi-class Traffic in Access Router of Mobility Protocol
2010 IEEE 12th International Conference on High Performance Computing and Communications (HPCC), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:The traffic characteristics in recent years have changed considerably having more video and audio traffic with critical real-time constraints. This situation is compounded by the increased number of mobile nodes communicating over Internet. Due to such high data traffic, the access routers are often overloaded with packets with different priority. The access routers have to act quickly enough to avoid loss of connection of mobile nodes' ongoing communication. However, there is a lack of analytical models that focus on the internal queue management access router of IP-Mobility Protocols. In this paper, we have developed an analytical model using multi-class non-preemptive priority queues to measure average queuing delay, queue occupancy, and packet drop probability for different classes of data and signaling traffic in the access router. We present numerical results that reflects the impact of node density, service rate and traffic pattern on these measures. The analytical framework presented in this paper will be helpful to better manage access routers with different classes of data and signaling traffic causing least queuing delay and packet loss.
-
Cost analysis of NEMO Protocol entities
2010 13th International Conference on Computer and Information Technology (ICCIT), 2010Co-Authors: Shohrab Hossain, Mohammed Atiquzzaman, William D. IvancicAbstract:To support IP-Mobility of networks in motion, IETF proposed Network Mobility (NEMO) Protocol that uses various signaling messages to ensure connectivity of the mobile nodes with the Internet. However, there has been no comprehensive cost analysis of Mobility Protocol entities that considers all possible costs. In this paper, we have developed analytical models to estimate total costs of key Mobility management entities of NEMO. We have presented numerical results to demonstrate the impact of network size, Mobility rate, traffic rate and data volume on these costs. Our cost analysis will thus help network engineers in estimating actual resource requirements for the key entities of the network in future design.