کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
448386 693564 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Contact time in random walk and random waypoint: Dichotomy in tail distribution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Contact time in random walk and random waypoint: Dichotomy in tail distribution
چکیده انگلیسی

Contact time (or link duration) is a fundamental factor that affects performance in Mobile Ad Hoc Networks. Previous research on theoretical analysis of contact time distribution for random walk models (RW) assume that the contact events can be modeled as either consecutive random walks or direct traversals, which are two extreme cases of random walk, thus with two different conclusions. In this paper we conduct a comprehensive research on this topic in the hope of bridging the gap between the two extremes. The conclusions from the two extreme cases will result in a power-law or exponential tail in the contact time distribution, respectively. However, we show that the actual distribution will vary between the two extremes: a power-law-sub-exponential dichotomy, whose transition point depends on the average flight duration. Through simulation results we show that such conclusion also applies to random waypoint.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ad Hoc Networks - Volume 9, Issue 2, March 2011, Pages 152–163
نویسندگان
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