CMTG: A Content-Based Mobile Tendency Geocast Routing Protocol in Urban Vehicular Networks

Abstract

Efficient dissemination of messages is a vital solution to the vehicular communications and applications. Geocast, delivering messages to a few specific areas, has become an important issue with the accelerating development of the location-based services in vehicular networks. Different from the conventional geocast schemes focusing on the static target areas, in this paper, we propose a content-based mobile tendency geocast (CMTG) routing protocol for urban vehicular networks from the delay tolerant networks (DTNs) perspective to better deal with the high mobility and transient connectivity issues. The target roads of dissemination depend on the preferred tendency and path of message, based on the determination to the message's expected propagating roads. And vehicle decides whether to relay the messages carried to other encountered vehicles by calculating the mobile tendency to the source location of message. The robustness and adaptability of protocol are also proved theoretically. Extensive performance comparisons with other protocols are conducted to show the advantages of CMTG.

A review of Multicast Routing Protocols for Vehicular Ad Hoc Networks (VANETs)

“…Also, the delivery of the route packets with reliability selected even with the high load of the network and density environments may depend on the vehicle positions. [17,23] Advantages, this protocol has a distinct performance where it relies on dense networks because node locations are already known in the same area. The vehicles adjust their speed according to traffic and can combine with other vehicles in different passages by communication between vehicles.…”

“…The vehicles adjust their speed according to traffic and can combine with other vehicles in different passages by communication between vehicles. [17,23] Disadvantages, The reasons for the high overhead of the network through the development of the assessment of parking in complex and dense networks. As a result, network fragmentation occurs for high mobility of nodes.…”

“…As a result, network fragmentation occurs for high mobility of nodes. [17,23] 4.11. Geocache, is designed to develop the traffic system and manage the safety of the road by reducing traffic congestion.…”

Untitled

“…14. Content-based Mobile Tendency Geocast Routing (CMTG)(2014, [58]): This protocol combines a geocast routing protocol with a content-based middleware system. From a DTN standpoint, the CMTG protocol is created for metropolitan regions to better address challenges with high mobility and sporadic connectivity.…”

SmartLoc: sensing landmarks silently for smartphone-based metropolitan localization

“…Although GPS is the most common technology to provide accurate location for outdoor environment [1][2][3][4][5][6], it still suffers from signal blocking and multipath effect, which lead to significant low location accuracy in metropolises. On the other hand, many smart city and cyber-physical system (CPS) applications and systems (such as vehicular networks [7,8] and urban crowd sensing [9,10]) heavily rely on accuracy location information. Therefore, it is crucial to investigate new urban localization techniques beyond GPS.…”