An Improved GPSR Routing Protocol
نویسندگان
چکیده
The rapid movement of Vehicles which results in frequent changes in vehicle position and speed, as well as inaccuracies in predicting driver’s direction at intersections usually lead to wrong packet forwarding decisions in VANET. Consequently, a routing protocol incorporating vehicle density, moving direction and speed into GPSR in making packet forwarding decisions is hereby proposed. Key data structures were designed and MOVE was used to construct typical Grid map urban simulation scenario. The protocol was simulated using NS-2 under the urban simulation scenario and was compared with AODV and GPSR protocols. Our experimental results indicate that the improved GPSR protocol has better performance when packet delivery rate, average end-to-end delay and average throughput are used as the performance metrics, and is better for VANET under the urban simulation scenario.
منابع مشابه
An Improved Trusted Greedy Perimeter Stateless Routing for Wireless Sensor Networks
In this paper, an improvement over Trusted Greedy Perimeter Stateless Routing (T-GPSR) is presented. T-GPSR employs heuristic weight values to evaluate total trust value of neighboring nodes. However, heuristic assignment of weights provide flexibility but it is not suitable in presence of several security attacks such as Grey hole, selfish behavior, on-off attack etc., are launched in the netw...
متن کاملThe Next-Hop Node Selection Based GPSR in Vehicular Ad Hoc Networks
Vehicular Ad hoc Networks (VANETs) which is a special form of Mobile Ad hoc Networks (MANETs) has promising application prospects in the future. Due to the rapid changing of topology structure, how to find a route which can guarantee Quality of Service (QoS) is an important issue in VANETs. This paper presents an improved Greedy Perimeter Stateless Routing (GPSR) protocol based on our proposed ...
متن کاملUML modelling of geographic routing protocol "Greedy Perimeter Stateless Routing" for its integration into the "Java Network Simulator"
In this work we propose an UML modeling of the “Greedy Perimeter Stateless Routing” (GPSR) protocol that integrate this geographic routing protocol, into "JavaNetwork Simulator" to simulate and study this protocol in a first time and offer some improvement in these features. Java Network Simulator (JNS) is a project of "translation" of Network Simulator (NS) in Java initiated by "the UCL Depart...
متن کاملAnalysis of GPSR and its Relevant Attacks in Wireless Sensor Networks
Most of the routing protocols proposed for ad-hoc networks and sensor networks are not designed with security as a goal. Hence, many routing protocols are vulnerable to an attack by an adversary who can disrupt the network or harness valuable information from the network. Routing Protocols for wireless sensor networks are classified into three types depending on their network structure as Flat ...
متن کاملAn Improved VANET Intelligent Forward Decision-making Routing Algorithm
Routing protocol selection of VANET is crucial for its network performance, which undertakes task to transfer important information. On the basis of comparison and analysis on existing VANET routing protocols, an VANET routing technology based on link quality and velocity vector (LQ-VV-GPSR) was brought out. The method aims at selecting reasonable relay node to convenient forwarding message int...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012