Accountability for wireless LANs, ad hoc networks, and wireless mesh networks

2008 ◽  
Vol 46 (4) ◽  
pp. 116-126 ◽  
Author(s):  
Yang Xiao
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Mesh Networks ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Wireless Lans ◽  
Wireless Mesh ◽  
Hoc Networks

Routing and Coding Enhancements to Improve QoS of Video Transmissions in Future Ad Hoc Networks

2012 ◽  
pp. 244-261
Author(s):  
Juan C. Guerri ◽  
Pau Arce ◽  
Patricia Acelas ◽  
Wilder E. Castellanos ◽  
Francisco Fraile
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Mesh Networks ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Hierarchical Routing ◽  
Link State ◽  
Wireless Mesh ◽  
Hoc Networks ◽  
Optimized Link State Routing

Video services are much demanded nowadays but bandwidth and delay requirements of this kind of services are very restrictive. Offering real-time video services in wireless ad-hoc networks is not an easy task because of the difficulty of guaranteeing certain quality in a shared medium. Practical solutions should try to improve communications at (and gathering information from) several layers of the protocol stack. Mobile Ad-hoc Networks are infrastructure-less wireless networks characterized by being very versatile, dynamic and self-organized but also by the difficulty to achieve a good Quality of Service in video transmissions due to packet losses and node mobility. On the other hand, the Wireless Mesh Network is presented as the next step in wireless networks. Wireless Mesh Networks have a hierarchical topology, clustered structure and static backbone, which all help to improve the network stability. In the way towards Wireless Mesh Networks, hierarchical routing protocols could transform an ad-hoc network in a more robust wireless network. Therefore, in this chapter, hierarchical routing protocols have been studied, particularly Hierarchical Optimized Link State Routing Protocol, and compared with a traditional flat routing protocol named Optimized Link State Routing. Furthermore, additional video coding techniques have been used in order to improve video quality in reception. At application layer, results show that Multi-description Coding achieves better quality on video transmissions when nodes have medium or high mobility, especially when using multipoint-to-point transmission or disjoint paths in a hierarchical structure. Video trace simulations have allowed us to perform subjective quality tests to assert the Quality of Experience improvements in video transmissions.

Trust-Based Security Mechanisms for Self-Organized Networks (SONs)

2020 ◽  
pp. 1782-1805
Author(s):  
S. Sivagurunathan ◽  
K. Prathapchandran
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Human Life ◽  
Self Organized ◽  
Wireless Mesh ◽  
Peer To Peer Networks ◽  
Hoc Networks ◽  
Day By Day

Self-Organized Networks (SONs) are an advancement of today's communication that arises to overcome the problems in traditional communications in terms of their planning, configuration, optimization, healing and management since the rate of utilizing communication technology is gradually increasing day by day hence an optimum mechanism is needed to cope up with all the changes in the communication era, the result is self-organized networks. The success of SONs depends on how it is effectively utilized without any compromise in its security. However its unique characteristics offer both opportunities and challenges. The aim of this chapter is to begins with the essential concept of SONs such as Mobile Ad Hoc Networks (MANET), Vehicular Ad Hoc Networks (VANET), Wireless Sensor Networks (WSN), Wireless Mesh Networks (WMN), Peer to Peer Networks (P2P), Cognitive Radio Networks, Bio-Inspired Networks and Internet of Things (IoT) and their limitations in different perspectives. As these networks have penetrated into the human life with an anytime anywhere capability, the security of the data being processed and communicated through these networks become vital. This chapter tries to bring out the issues and challenges in providing a trust based solution mechanisms for this type of networks.

scholarly journals Mobile ad hoc network integrated wireless networks: a survey

2018 ◽  
Vol 7 (1.9) ◽  
pp. 217
Author(s):  
Dr S.SivaNageswara Rao ◽  
Orchu Aruna ◽  
Dr K.Lakshminadh
Keyword(s):  
Wireless Networks ◽  
Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
New Technologies ◽  
Mesh Networks ◽  
Wireless Mesh ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Now a day, every one using mobile devices for communicating with others. The development of new technologies, like Internet of Things (IoT) needs coverage, connectivity, scalability and QoS. In ubiquity networks, the major issues are coverage, connectivity, scalability and QoS. To solve these limitations, integrating wireless networks with ad hoc networks. This paper provides detail survey on how ad hoc networks are integrated with Cellular Network, Wireless Mesh Networks and Wireless Sensor Networks. This integration may resolve the problems of coverage, connectivity, scalability and QoS.

Trust-Based Security Mechanisms for Self-Organized Networks (SONs)

2016 ◽  
pp. 92-114
Author(s):  
S. Sivagurunathan ◽  
K. Prathapchandran
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Human Life ◽  
Self Organized ◽  
Wireless Mesh ◽  
Peer To Peer Networks ◽  
Hoc Networks ◽  
Day By Day

Self-Organized Networks (SONs) are an advancement of today's communication that arises to overcome the problems in traditional communications in terms of their planning, configuration, optimization, healing and management since the rate of utilizing communication technology is gradually increasing day by day hence an optimum mechanism is needed to cope up with all the changes in the communication era, the result is self-organized networks. The success of SONs depends on how it is effectively utilized without any compromise in its security. However its unique characteristics offer both opportunities and challenges. The aim of this chapter is to begins with the essential concept of SONs such as Mobile Ad Hoc Networks (MANET), Vehicular Ad Hoc Networks (VANET), Wireless Sensor Networks (WSN), Wireless Mesh Networks (WMN), Peer to Peer Networks (P2P), Cognitive Radio Networks, Bio-Inspired Networks and Internet of Things (IoT) and their limitations in different perspectives. As these networks have penetrated into the human life with an anytime anywhere capability, the security of the data being processed and communicated through these networks become vital. This chapter tries to bring out the issues and challenges in providing a trust based solution mechanisms for this type of networks.

Adaptive Sending Rate Over Wireless Mesh Networks Using SNR

2013 ◽  
pp. 199-217
Author(s):  
Scott Fowler ◽  
Marc Eberhard ◽  
Keith Blow ◽  
Ahmed Shaikh
Keyword(s):  
Wireless Mesh Networks ◽  
Packet Loss ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Packet Transmission ◽  
Dynamic Monitoring ◽  
Wireless Mesh ◽  
Channel Conditions ◽  
Two Factors ◽  
Hoc Networks

Wireless Mesh Networks (WMNs) have emerged as a key technology for the next generation of wireless networking. Instead of being another type of ad-hoc networking, WMNs diversify the capabilities of ad-hoc networks. Several protocols that work over WMNs include IEEE 802.11a/b/g, 802.15, 802.16 and LTE-Advanced. To bring about a high throughput under varying conditions, these protocols have to adapt their transmission rate. This paper proposes a scheme to improve channel conditions by performing rate adaptation along with multiple packet transmission using packet loss and physical layer condition. Dynamic monitoring, multiple packet transmission and adaptation to changes in channel quality by adjusting the packet transmission rates according to certain optimization criteria provided greater throughput. The key feature of the proposed method is the combination of the following two factors: 1) detection of intrinsic channel conditions by measuring the fluctuation of noise to signal ratio via the standard deviation, and 2) the detection of packet loss induced through congestion. The authors show that the use of such techniques in a WMN can significantly improve performance in terms of the packet sending rate. The effectiveness of the proposed method was demonstrated in a simulated wireless network testbed via packet-level simulation.

scholarly journals A Study of Research Trends and Issues in Wireless Ad Hoc Networks

2016 ◽  
pp. 1819-1859
Author(s):  
Noman Islam ◽  
Zubair A. Shaikh
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Research Trends ◽  
Research Areas ◽  
Wireless Mesh ◽  
Hoc Networks ◽  
Spontaneous Erection ◽  
Novel Applications

Ad hoc networks enable network creation on the fly without support of any predefined infrastructure. The spontaneous erection of networks in anytime and anywhere fashion enables development of various novel applications based on ad hoc networks. However, ad hoc networks present several new challenges. Different research proposals have came forward to resolve these challenges. This chapter provides a survey of current issues, solutions, and research trends in wireless ad hoc networks. Even though various surveys are already available on the topic, rapid developments in recent years call for an updated account. The chapter has been organized as follows. In the first part of the chapter, various ad hoc network issues arising at different layers of TCP/IP protocol stack are presented. An overview of research proposals to address each of these issues is also provided. The second part of the chapter investigates various emerging models of ad hoc networks, discusses their distinctive properties, and highlights various research issues arising due to these properties. The authors specifically provide discussion on ad hoc grids, ad hoc clouds, wireless mesh networks, and cognitive radio ad hoc networks. The chapter ends with a presenting summary of the current research on ad hoc networks, ignored research areas and directions for further research.

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