Design of multichannel MAC protocols for wireless ad hoc networks

2008 ◽  
Vol 19 (5) ◽  
pp. 399-413 ◽  
Author(s):  
Shou-Chih Lo
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Mac Protocols ◽  
Multichannel Mac ◽  
Hoc Networks

MAC Protocols for Cognitive Radio Ad Hoc Networks

2013 ◽  
pp. 190-209
Author(s):  
Abdullah Masrub
Keyword(s):  
Cognitive Radio ◽  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Mac Protocol ◽  
Radio Spectrum ◽  
Mac Protocols ◽  
Medium Access ◽  
Markov Decision ◽  
Hoc Networks

In contrast to infrastructure-based networks, in wireless ad hoc networks nodes can discover and communicate with each other directly without involving central access points. In this mode of multi-hop networks, all nodes have equal right to access the medium. Hence, the performance of wireless ad hoc networks is mostly limited by traffic congestion. To alleviate such a problem, Cognitive Radio (CR) technology can be used. In this chapter, a CR-based Medium Access Control (MAC) layer for wireless ad hoc networks is investigated. The authors focus on Cognitive MAC protocols for an unlicensed user, which can be enabled to access the large amount of unused spectrum allocated for a licensed user in an intelligent way without causing any harmful interference. They propose a cognitive MAC protocol based on the theory of the Partially Observed Markov Decision Process (POMDP), which sense the radio spectrum, detect the occupancy state of different primary channels, and then opportunistically communicate over unused channels. The objective is to benefit as much as possible from the available spectrum opportunities by making efficient decisions on which channels to access, which ensures maximization of the throughput of the secondary user.

A Survey of MAC Protocols Design Strategies and Techniques in Wireless Ad Hoc Networks

2014 ◽  
Vol 9 (1) ◽  
pp. 30-38 ◽  
Author(s):  
Amjad Ali ◽  
Huiqiang Wang ◽  
Hongwu Lv ◽  
Xiaoming Chen
Keyword(s):  
Ad Hoc Networks ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc ◽  
Mac Protocols ◽  
Design Strategies ◽  
Hoc Networks
Sign in / Sign up

Export Citation Format

Share Document