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العنوان
Service Discovery and Advertisement
Protocols
for Mobile Ad Hoc Networks /
المؤلف
Fahmy,Heba Abd El-Rahman.
هيئة الاعداد
باحث / Heba Abd El-Rahman Fahmy
مشرف / Mohamed Hashem
مشرف / Ibrahim Fathy
تاريخ النشر
2012
عدد الصفحات
115p.:
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم الحاسب الآلي
تاريخ الإجازة
1/1/2012
مكان الإجازة
جامعة عين شمس - كلية الحاسبات والمعلومات - نظم المعلومات
الفهرس
Only 14 pages are availabe for public view

from 115

from 115

Abstract

Mobile devices are able to spontaneously form highly
dynamic ad hoc networks in which they can communicate with
no fixed infrastructure. The global interest in such mobile ad
hoc networks (MANETs) is rapidly growing due to the regular
intensive use of wireless communication devices. In order to
overcome the limitations of the individual mobile device
capabilities, these ad hoc networks should enable the
participating devices to share resources and services to
perform the tasks that they can not fulfill alone. This exchange
of services requires that these services can be discovered and
located using an efficient and scalable service discovery
protocol that can face the challenges posed by the highly
dynamic nature of MANETs.
With regard to the fact that the service discovery protocol
is a crucial aspect in mobile Ad Hoc networks, we propose a
scalable location based service location protocol (LSLP) which
is a discovery protocol based on enhancing the service location
protocol (SLP) for a better suitability for the Mobile Ad-hoc
networks. The scalability of our protocol comes from the
dynamic selection of the directory agents based on the load of
service requests and devices battery power in the network.our protocol uses the location information of each
device provided by the Global Positioning System (GPS) to
minimize the delay of the service discovery and advertisement
processes.
Simulation experiments were used to evaluate and
compare the performance of our proposed protocol the LSLP
with Konark, which is one of the well known and well adapted
service discovery and delivery protocols designed specifically
for mobile ad hoc networks. Our reported protocol has shown a
significant improvement in terms of minimizing the delay of the
service discovery process and the miss ratio of service
requests together with reducing the battery power consumption
of the mobile devices.
Furthermore, we introduce an enhancement to LSLP
aiming to further improve its scalability and efficiency. Our
enhancement is based on using scopes to categorize the
services provided in a network which can result in a more
advanced service discovery process. Simulation experiments
were also applied to evaluate and to compare the performance
of our enhanced protocol (Scoped-LSLP) with LSLP and
Konark. The Scoped-LSLP has shown a significant
improvement in terms of increasing the ratio of successful
service discoveries.