کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446939 693373 2009 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhancing peer-to-peer content discovery techniques over mobile ad hoc networks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Enhancing peer-to-peer content discovery techniques over mobile ad hoc networks
چکیده انگلیسی

Content dissemination over mobile ad hoc networks (MANETs) is usually performed using peer-to-peer (P2P) networks due to its increased resiliency and efficiency when compared to client–server approaches. P2P networks are usually divided into two types, structured and unstructured, based on their content discovery strategy. Unstructured networks use controlled flooding, while structured networks use distributed indexes. This article evaluates the performance of these two approaches over MANETs and proposes modifications to improve their performance. Results show that unstructured protocols are extremely resilient, however they are not scalable and present high energy consumption and delay. Structured protocols are more energy-efficient, however they have a poor performance in dynamic environments due to the frequent loss of query messages. Based on those observations, we employ selective forwarding to decrease the bandwidth consumption in unstructured networks, and introduce redundant query messages in structured P2P networks to increase their success ratio.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Communications - Volume 32, Issues 13–14, 17 August 2009, Pages 1445–1459
نویسندگان
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