scholarly journals SDN Based User-Centric Framework for Heterogeneous Wireless Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-9
Author(s):  
Zhaoming Lu ◽  
Tao Lei ◽  
Xiangming Wen ◽  
Luhan Wang ◽  
Xin Chen
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Heterogeneous Wireless Networks ◽  
Network Connectivity ◽  
Data Traffic ◽  
Network Access ◽  
Resource Virtualization ◽  
Virtualization Technology ◽  
User Centric

Due to the rapid growth of mobile data traffic, more and more basestations and access points (APs) have been densely deployed to provide users with ubiquitous network access, which make current wireless network a complex heterogeneous network (HetNet). However, traditional wireless networks are designed with network-centric approaches where different networks have different quality of service (QoS) strategies and cannot easily cooperate with each other to serve network users. Massive network infrastructures could not assure users perceived network and service quality, which is an indisputable fact. To address this issue, we design a new framework for heterogeneous wireless networks with the principle of user-centricity, refactoring the network from users’ perspective to suffice their requirements and preferences. Different from network-centric approaches, the proposed framework takes advantage of Software Defined Networking (SDN) and virtualization technology, which will bring better perceived services quality for wireless network users. In the proposed user-centric framework, control plane and data plane are decoupled to manage the HetNets in a flexible and coadjutant way, and resource virtualization technology is introduced to abstract physical resources of HetNets into unified virtualized resources. Hence, ubiquitous and undifferentiated network connectivity and QoE (quality of experience) driven fine-grained resource management could be achieved for wireless network users.

Demand of Wireless Network and Security in Current Research

2015 ◽  
Vol 14 (6) ◽  
pp. 5809-5813
Author(s):  
Abhishek Prabhakar ◽  
Amod Tiwari ◽  
Vinay Kumar Pathak
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Wireless Network ◽  
Network Performance ◽  
Wireless Security ◽  
Human Intervention ◽  
Unauthorized Access ◽  
Quality Of Service Parameters ◽  
Wireless Infrastructure

Wireless security is the prevention of unauthorized access to computers using wireless networks .The trends in wireless networks over the last few years is same as growth of internet. Wireless networks have reduced the human intervention for accessing data at various sites .It is achieved by replacing wired infrastructure with wireless infrastructure. Some of the key challenges in wireless networks are Signal weakening, movement, increase data rate, minimizing size and cost, security of user and QoS (Quality of service) parameters... The goal of this paper is to minimize challenges that are in way of our understanding of wireless network and wireless network performance.

Immensely Discriminate Routing in Wireless Networks

2017 ◽  
Vol 8 (3) ◽  
pp. 712
Author(s):  
Sujatha V ◽  
E. A. Mary Anitha
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Routing Protocol ◽  
Real Life ◽  
Internet Access ◽  
Multimedia Traffic ◽  
Multihop Routing ◽  
Routing Schemes ◽  
Scalable Routing

Wireless networks are predictable to grant essential Internet access multimedia traffic service also increasingly such networks have been emerged in real life. However, the application scenarios is indeterminate as well as largely scalable routing is very difficult. Thus require efficient routing schemes in wireless network. In this paper, we propose Immensely Discriminate Routing protocol is used for multihop routing in wireless network. Here, node distance, node link, node trust and node quality of service is evaluated the next hop. This parameters are determined an efficient path in the wireless network.

scholarly journals Priority based Proactive Buffer Management for Aggregated Streaming in Heterogeneous Wireless Networks

2018 ◽  
Vol 7 (3.34) ◽  
pp. 97 ◽  
Author(s):  
S Duraimurugan ◽  
P Jesu Jayarin
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Data Transfer ◽  
Transmission Rate ◽  
Heterogeneous Wireless Networks ◽  
Buffer Management ◽  
Data Packets ◽  
Transmission Path ◽  
Lower Priority ◽  
Irregular Data

Now a days, most of the data is transmitted between two devices using Wireless network. Although this has made it easier to transmit data, it also has its disadvantages. One of its disadvantage being the irregular data transfer due to the presence of congestion in the intermediate nodes. This paper proposes an idea to overcome the said disadvantage by developing a priority based proactive buffer management for the wireless network through the use of buffer which will be maintained at the source. The buffer is used to regulate the transmission rate of the data packets in accordance with the congestion level which is present in the transmission path. For faster transmission, the data packets having high priority are transmitted while the data packets having lower priority are dropped thereby reducing the quantity of data packets being transmitted, hence overcoming the problem of congestion. 

A Network Selection Algorithm with Parallel Transmission Based on MADM

2014 ◽  
Vol 556-562 ◽  
pp. 4606-4611 ◽  
Author(s):  
Li Na Zhang ◽  
Qi Zhu
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Heterogeneous Wireless Networks ◽  
Network Selection ◽  
Selection Algorithm ◽  
Decision Matrix ◽  
Parallel Transmission ◽  
User Throughput ◽  
Selection Algorithms

At present, most of researches on network selection algorithms are focused on single access. To support seamless mobility and provide better quality of service in heterogeneous wireless networks, this paper proposes a network selection algorithm with parallel transmission based on MADM. In the algorithm, we firstly determine all available wireless networks and consider every subset of these networks as a network scheme. Then we obtain aggregation attributes of every scheme and determine the alternative network schemes. Finally, we build the decision matrix of multiple attributes and determine the optimal scheme by using GRA. Simulation results show that the proposed algorithm can obviously improve user quality of service, improve user throughput, reduce power consumption and price cost per bit.

Converged Management in Heterogeneous Wireless Networks Based on Resource Virtualization

2015 ◽  
Vol 20 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Luhan Wang ◽  
Zhaoming Lu ◽  
Xiangming Wen ◽  
Wanqing Guan
Keyword(s):  
Wireless Networks ◽  
Heterogeneous Wireless Networks ◽  
Resource Virtualization
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