Information Technology Reference
In-Depth Information
14
Real-Time Vehicle Navigation Using
Vehicular A
d Hoc Networks
Jen-Wen Ding, Fa-Hung Meng, and Ray Yueh-Min Huang
CoNTENTS
14.1 Introduction .............................................................................................. 307
14.1.1 Basic Concept of Real-Time Vehicle Navigation .................... 309
14.1.2 Three Types of VANET-Based Vehicle
Navigation Systems ................................................................... 310
14.2 Vehicle-to-Roadside-Based Vehicle Navigation Systems ................... 312
14.3 Vehicle-to-Vehicle-Based Vehicle Navigation Systems....................... 315
14.4 Comparison and Discussions ................................................................ 319
14.5 Conclusions............................................................................................... 321
References............................................................................................................. 321
Traffic congestion is a serious problem for many urban cities around the
world. This problem, unfortunately, causes many undesirable effects, such as
fuel consumption, air pollution, and waste of time. Conventional approaches
to alleviating traffic congestion problems include constructing new roads
or widening existing roads. However, both approaches are very expensive
solutions. With advances in Vehicular Ad hoc NETworks (VANET) and
GPS-enabled devices (such as PDAs, smart phones, and car PCs), it is now
feasible to make use of the VANET-based vehicle navigation systems to
alleviate traffic congestion problems, which is a much more cost effective
solution. The VANET system supports two types of communication modes:
vehicle-to-roadside (V2R) and vehicle-to-vehicle (V2V). We describe V2R-
based and V2V-based vehicle navigation systems in this chapter.
14.1 Introduction
Traffic congestion is an annoying but a common phenomenon in many
urban cities around the world. Traffic congestion causes many serious prob-
lems, such as fuel consumption, air pollution, and waste of time for drivers.
307
