Adaptive transport layer protocol for highly dynamic environment

Hala Eldaw Idris Jubara,Shiela N Fisal,Sharifah Hafizah Syed Ariffin,Sharifah K Syed Yusof,Nurul Muazzah Abdul Latiff,Rozeha Rashid

doi:10.1186/1687-1499-2012-229

Abstract

Computer and wireless communication require Internet accessibility at anytime and anywhere; this includes in a high-speed mobile station such as in speedy trains, fast moving cars as vehicle-to-infrastructure communication. However, wireless Quality of Service (QoS) provisioning in such an environment is more challenging. This increased the development of numerous schemes concerning the need of smooth handover of the mobile nodes. Conversely, transport layer (L4 in ISO layers) protocols such as stream control transmission protocol can support such a seamless handover in high-speed mobility users. This article highlights on the issues of moving users in mobile WiMAX networks. An adaptation of transport layer protocol of the high mobility vehicle that supports seamless handover can guarantee and maintain QoS for rapid handover rates. The results show an improvement of L4 protocol in terms of delay time and throughput in order to enable efficient and robust mobility aware protocols.

Highlights

With more users moving around in need of Internet connection from their home to their office, vehicular ad-hoc network (VANETs) has increasingly become popular
Most of L4 handover delay of seamless IP diversity-based generalized mobility architecture (SIGMA) protocol using in this design is for stream control transmission protocol (SCTP)’s Set Primary chuck as well as delete old IP (ASCONF SETPRIMARY/DEL-IP) messages of handover plus Round Trip Time (RTT) of messages between vehicle and correspondent nodes (CN)
The simulation scenario taking accounts the MS speeds between 1 and 40 m/s. 40 m/s, which is above the 100 km/h limit described in IEEE 802.16e for a seamless handover

Summary

Introduction

With more users moving around in need of Internet connection from their home to their office, vehicular ad-hoc network (VANETs) has increasingly become popular. To have infrastructure of 3G and 4G around VANET expands its usage by attaching the users to the backbone infrastructure for additional support and usage applications. In VANET there are two types of communication, which are vehicles-to-vehicle (V2V) and vehicle-to-infrastructure (V2I). V2V deals with communication between vehicles themselves, while V2Itransmits information between vehicles and the fixed infrastructure which are installed on the sides of the road. This infrastructure includes gateways or base stations that provide services such as Internet access. VANET is very similar to mobile ad-hoc network (MANETs). The network topology in vehicular networks is highly dynamic and the topology is often constrained by the road structure [1,2]

Methods

Results

Conclusion