Time Slot Utilization for Efficient Multi-Channel MAC Protocol in VANETs

SS-MAC: A Novel Time Slot-Sharing MAC for Safety Messages Broadcasting in VANETs

Efficient and scalable media access control (MAC) protocol design is crucial to guarantee the reliable broadcast of safety messages in vehicular ad hoc networks (VANETs). To devise a MAC for safety message broadcasting with reliability and minimum delay, in this paper, we propose a novel time slotsharing MAC, referred to as SS-MAC, which can support diverse periodical broadcasting rates. In spe...

Multi-Channel MAC Protocol Using Statistical Channel Utilization for Cognitive Networks

Performance Analysis of MAC Protocol for Reliable Broadcast in VANETs

Wireless communications are becoming the dominant form of transferring information,and the most active research field. In this dissertation, we will present one of the most applicable forms of Ad-Hoc networks; the Vehicular Ad-Hoc Networks (VANETs). VANET is the technology of building a robust Ad-Hoc network between mobile vehicles and each other, besides, between mobile vehicles and roadside u...

A Multi-Channel Hybrid MAC Protocol for Wireless Mesh Networks

In this article, the authors propose a new hybrid MAC protocol named H-MAC for wireless mesh networks. This protocol combines CSMA and TDMA schemes according to the contention level. In addition, it exploits channel diversity and provides a medium access control method that ensures the QoS requirements. Using ns-2 simulator, we have implemented and compared H-MAC with other MAC protocol used in...

A receiver-centric multi-channel MAC protocol for wireless networks

We consider the issues of mitigating interference and improving network capacity in wireless networks from the viewpoint of channel diversity. Multi-channel diversity allows multiple pairs to concurrently use the wireless medium, thus increasing the achievable capacity; this multi-channel diversity can then be fully utilized by enabling wireless nodes to dynamically switch their channels. Howev...