Dynamic Content Enabled Microservice for Business Applications in Distributed Cloudlet Cloud Network

2021 ◽  
Vol 9 (7) ◽  
pp. 1035-1039
Keyword(s):  
Ad Hoc ◽  
Mobility Model ◽  
Cloud Services ◽  
Phase Iii ◽  
Service Availability ◽  
Baseline Task ◽  
Network Status ◽  
Cloud Network ◽  
The Impact ◽  
Task Offloading

This study introduces Mob-Cloud, a mobility aware adaptiveoffloading system that incorporates a mobile device as a thick client, ad-hoc networking, cloudlet DC, and remote cloud to improve the performance and availability of microservices services. These cloudlet cloud has emerged as a popular model for bringingthe benefits of cloud computing to the proximity of mobile devices. the microservices preliminary goal is to improve service availability as well as performance and mobility features. The impact of dynamic changes in mobile content (e.g., network status, bandwidth, latency, and location) on the task offloading model is observed by proposing a mobility aware adaptive task offloading algorithm aware microservices, which makes a task offloading decision at runtime on selecting optimal wireless network channels and suitable offloading resources. The decision problem, which is well-known as an NP-hard issue, is the subject of this work. However, for the entire proposed microservices system has the following phases: I adaptive offloading decision based on real-time information, (ii) workflow task scheduling phase, (iii) mobility model phase to motivate end-users to invoke cloud services seamlessly while roaming, and (iv) faulttolerant phase to deal with failure (either network or node). We conduct real-world experiments on the built instruments to assess the online algorithm's overall performance. Compared to baseline task offloading solutions, the evaluation findings show that online algorithm incorporates dynamic adjustments on offloading decision during run-timeand achieves a massive reduction in overall response time with better service availability.

scholarly journals Congestion aware overlay network

2021 ◽  
Author(s):  
Md. Moinuddin Bhuiyan
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Fundamental Problem ◽  
Mobility Model ◽  
Packet Losses ◽  
Key Characteristics ◽  
Wireless Medium ◽  
Mobile Ad Hoc ◽  
The Impact

Advances in wireless technology and mobile computing have provided a major impetus towards development of P2P network over MANET. Both peer-to-peer overlays and mobile ad-hoc network share the key characteristics of self-organizing and decentralization; both need to solve same fundamental problem, that is, how to route queries or packets efficiently. Congestion affecting the performance of P2P overlay on wireless ad-hoc network occurs not only due to buffer overflow but also due to error prone nature of the wireless medium used and the mobility of users. When paths of multiple downloading sessions intersect with each other, they mutually cause congestion for each other that result in packet drops. We identified that P2P MANET suffers query performance primarily due to significant congestion during download session. The unawareness of congestion in P2P MANET system may lead to the longer user response time, high overhead and many packet losses. In order to alleviate the congestion problem, we propose a modification to RAON, CANON, which includes congestion awareness for improving the RAON performance. We evaluated our system through simulation, which shows that CAON improves the performance of query success rate, query delay, packet losses significantly. We also evaluated the impact of mobility model on our system by simulating under both Random way point mobility model and Manhattan mobility model.

scholarly journals Line-of-Sight Obstruction Analysis for Vehicle-to-Vehicle Network Simulations in a Two-Lane Highway Scenario

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Taimoor Abbas ◽  
Fredrik Tufvesson
Keyword(s):  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Path Loss ◽  
Mobility Model ◽  
Line Of Sight ◽  
Shadow Fading ◽  
Lane Changing ◽  
Car Following ◽  
Car Following Model ◽  
The Impact

In vehicular ad-hoc networks (VANETs) the impact of vehicles as obstacles has largely been neglected in the past. Recent studies have reported that the vehicles that obstruct the line-of-sight (LOS) path may introduce 10–20 dB additional loss, and as a result reduce the communication range. Most of the traffic mobility models (TMMs) today do not treat other vehicles as obstacles and thus cannot model the impact of LOS obstruction in VANET simulations. In this paper the LOS obstruction caused by other vehicles is studied in a highway scenario. First a car-following model is used to characterize the motion of the vehicles driving in the same direction on a two-lane highway. Vehicles are allowed to change lanes when necessary. The position of each vehicle is updated by using the car-following rules together with the lane-changing rules for the forward motion. Based on the simulated traffic a simple TMM is proposed for VANET simulations, which is capable to identify the vehicles that are in the shadow region of other vehicles. The presented traffic mobility model together with the shadow fading path-loss model can take into account the impact of LOS obstruction on the total received power in the multiple-lane highway scenarios.

A Disaster Management Specific Mobility Model for Flying Ad-hoc Network

2016 ◽  
Vol 3 (3) ◽  
pp. 72-103 ◽  
Author(s):  
Amartya Mukherjee ◽  
Nilanjan Dey ◽  
Noreen Kausar ◽  
Amira S. Ashour ◽  
Redha Taiar ◽  
...  
Keyword(s):  
Ad Hoc Network ◽  
Network Architecture ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Real Life ◽  
Mobility Model ◽  
Test Bed ◽  
Mobility Modeling ◽  
Prototype Test ◽  
The Impact

The extended Mobile Ad-hoc Network architecture is a paramount research domain due to a wide enhancement of smart phone and open source Unmanned Aerial Vehicle (UAV) technology. The novelty of the current work is to design a disaster aware mobility modeling for a Flying Ad-hoc network infrastructure, where the UAV group is considered as nodes of such ecosystem. This can perform a collaborative task of a message relay, where the mobility modeling under a “Post Disaster” is the main subject of interest, which is proposed with a multi-UAV prototype test bed. The impact of various parameters like UAV node attitude, geometric dilution precision of satellite, Global Positioning System visibility, and real life atmospheric upon the mobility model is analyzed. The results are mapped with the realistic disaster situation. A cluster based mobility model using the map oriented navigation of nodes is emulated with the prototype test bed.

scholarly journals Impact of Energy and Mobility on MANETs Routing Protocols: AODV and DSR

2019 ◽  
Vol 8 (10) ◽  
pp. 2346-2352
Keyword(s):  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Performance Metrics ◽  
Mobility Model ◽  
Traffic Patterns ◽  
Energy Models ◽  
Mobile Ad Hoc ◽  
The Impact

Routing protocols can be tested in realistic conditions of Mobile Ad-hoc network (MANET)). The performance of MANET depends on different parameters such as used number of nodes, mobility speed, routing protocols, mobility model and energy models etc. In this paper, researchers made an effort to analyze the impact of energy and mobility on the performance of AODV and DSR routing protocols with varying mobility speed under random waypoint mobility model and radio energy models in the MANET. Detailed simulations have been carried out using QualNet simulator for 50 nodes. Performance of AODV and DSR routing protocols has been analyzed under the premise of performance metrics namely average throughput, average end to end delay and average jitter using CBR traffic patterns.

scholarly journals Congestion aware overlay network

2021 ◽  
Author(s):  
Md. Moinuddin Bhuiyan
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Fundamental Problem ◽  
Mobility Model ◽  
Packet Losses ◽  
Key Characteristics ◽  
Wireless Medium ◽  
Mobile Ad Hoc ◽  
The Impact

Advances in wireless technology and mobile computing have provided a major impetus towards development of P2P network over MANET. Both peer-to-peer overlays and mobile ad-hoc network share the key characteristics of self-organizing and decentralization; both need to solve same fundamental problem, that is, how to route queries or packets efficiently. Congestion affecting the performance of P2P overlay on wireless ad-hoc network occurs not only due to buffer overflow but also due to error prone nature of the wireless medium used and the mobility of users. When paths of multiple downloading sessions intersect with each other, they mutually cause congestion for each other that result in packet drops. We identified that P2P MANET suffers query performance primarily due to significant congestion during download session. The unawareness of congestion in P2P MANET system may lead to the longer user response time, high overhead and many packet losses. In order to alleviate the congestion problem, we propose a modification to RAON, CANON, which includes congestion awareness for improving the RAON performance. We evaluated our system through simulation, which shows that CAON improves the performance of query success rate, query delay, packet losses significantly. We also evaluated the impact of mobility model on our system by simulating under both Random way point mobility model and Manhattan mobility model.

scholarly journals Implementation and Performance Analysis of Multi Hop Ad Hoc Cloud Network and Servers using Ad Hoc Network Protocols

2019 ◽  
Vol 8 (10) ◽  
pp. 4671-4679
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Optimal Solution ◽  
Network Protocols ◽  
Emerging Technology ◽  
Cloud Services ◽  
Adhoc Network ◽  
Network Engineering ◽  
And Performance ◽  
Cloud Network

Wireless technologies such as Ad hoc network and cloud network are popular in the present era, so is the emerging technology ad hoc cloud is gaining popularity. This article implements the ad hoc network that runs the cloud services that is termed as Ad hoc cloud. To implement this concept, five adhoc network protocols used are TORA, DSR, AODV, GRP and OLSR. Performance of the network as well as the applications are monitored and analyzed and based on the results, an optimal solution is proposed. Optimized Network Engineering Tool is used to perform the simulations.

scholarly journals Investigation of Mobility Model Against Reactive Routing Protocols in MANETs

2013 ◽  
Vol 8 (1) ◽  
pp. 751-767
Author(s):  
Shruti Bajaj ◽  
Er. Rajdeep Singh ◽  
Er. Parveen Kakkar
Keyword(s):  
Routing Protocols ◽  
Ad Hoc ◽  
Mobility Model ◽  
Network Size ◽  
Delivery Ratio ◽  
Mobility Models ◽  
Mobile Nodes ◽  
Reactive Routing ◽  
Network Metrics ◽  
The Impact

Ad-hoc network is a collection of wireless mobile nodes which dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. It may connect hundreds to thousands of mobile nodes. The mobile nodes communicate directly with each other without the aid of access points. They form an arbitrary topology, where the routers are free to move randomly and arrange themselves as required. In this paper, an attempt has been made to investigate the impact of mobility models on the performance of three MANET on-demand reactive routing protocols: AODV, DSR and DYMO. The mobility models that are used in this work are: Random Waypoint mobility model and Group mobility model. The performance differentials are analyzed using varying network size, varying pause time, and varying velocity. We used Qual-Net [18] from scalable networks for the simulation purpose. The performance analysis is based on different network metrics such as packet delivery ratio, throughput, average end –to –end delay and average jitter.

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