Channel Access Delay and Buffer Distribution of Two-User Opportunistic Scheduling Schemes in Wireless Networks

—Cooperative networking brings performance improvement to most of theissues in wireless networks, such as fading or delay due to slow stations. However, due tocooperation when data is relayed via other nodes, there network is more prone to attacks.Since, channel access is very important for cooperation, most of the attacks happens at MAC.One of the most critical attack is denial of service, which is reason of cooperation failure.Therefore, the cooperative network as well as simple wireless LAN must be defensive againstDOS attacks.In this article we analyzed all possible of DoS attacks that can happen at MAC layer ofWLAN. The cooperative protocols must consider defense against these attacks. This articlealso provided survey of available solutions to these attacks. At the end it described itsdamages and cost as well as how to handle these attacks while devising cooperative MAC.

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Analysis of Channel Access Delay of Slotted CSMA/CA in a WSN

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering - Sensor Systems and Software ◽

10.1007/978-3-642-11528-8_7 ◽

2010 ◽

pp. 83-97

Author(s):

Alexandre Guitton ◽

Nassima Hadid

Keyword(s):

Channel Access ◽

Access Delay

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Eliminating explicit contention from channel access in distributed wireless networks

China Communications ◽

10.23919/j.cc.2019.05.006 ◽

2019 ◽

Vol 16 (5) ◽

pp. 70-82

Author(s):

Aijing Li ◽

Chao Dong ◽

Fan Wu ◽

Shaojie Tang ◽

Guihai Chen ◽

...

Keyword(s):

Wireless Networks ◽

Channel Access

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Analysis of Access Delay in Ad Hoc Wireless Networks for Multimedia Applications

Advances in Social Networking and Online Communities - Hidden Link Prediction in Stochastic Social Networks ◽

10.4018/978-1-5225-9096-5.ch006 ◽

2019 ◽

pp. 93-107

Author(s):

Arundhati Arjaria

Keyword(s):

Wireless Networks ◽

Ad Hoc Networks ◽

Wireless Ad Hoc Networks ◽

Ad Hoc ◽

Network Capacity ◽

Wireless Channel ◽

Multimedia Applications ◽

Access Delay ◽

Hoc Networks ◽

Exposed Terminal

Mobile ad hoc networks are infrastructure-less wireless networks; all nodes can quickly share information without using any fixed infrastructure like base station or access point. Wireless ad hoc networks are characterized by frequent topology changes, unreliable wireless channel, network congestion, and resource contention. Multimedia applications usually are bandwidth hungry with stringent delay, jitter, and loss requirements. Designing ad hoc networks which support multimedia applications, hence, is considered a hard task. The hidden and exposed terminal problems are the main which consequently reduces the network capacity. Hidden and exposed nodes reduce the performance of the wireless ad hoc networks. Access delay is the major parameter that is to be taken under consideration. Due to hidden and exposed terminal problems, the network suffers from a serious unfairness problem.

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