کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4953714 1443063 2017 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Opportunistic network coding for secondary users in cognitive radio networks
ترجمه فارسی عنوان
برنامه نویسی اپورتونیستی برای کاربران ثانویه در شبکه های رادیویی شناختی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی
In this paper, for the first time, we develop an efficient network coding strategy for SUs while considering the uncertain idle durations in CRNs. At its heart is that systematic network coding (SNC) is employed to opportunistically utilize the idle duration left by PUs. To handle the uncertainty of idle durations, we utilize confidential interval estimation to estimate the expected duration for stochastic idle durations, and multi-armed bandits to determine the duration sequentially for non-stochastic idle durations, respectively. Then, we propose a coding parameter selection algorithm for SNC by considering the complicated correlation among the receptions at different receivers. Simulation results show that, our proposed schemes outperform both traditional optimal block-based network coding and non-network coding schemes, and achieve competitive performance compared with the scheme with perfect idle duration information.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ad Hoc Networks - Volume 56, 1 March 2017, Pages 186-201
نویسندگان
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