کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
463464 697052 2007 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Markov and multifractal wavelet models for wireless MAC-to-MAC channels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Markov and multifractal wavelet models for wireless MAC-to-MAC channels
چکیده انگلیسی

Statistical understanding of bit-errors above the physical layer facilitates the design and verification of wireless protocols and applications. In this paper, we provide analysis and modeling of bit-errors at the 802.11b MAC layer. We show that MAC-to-MAC bit-errors at 2 and 5.5 Mbps are Markov, whereas those at 11 Mbps are long-range dependent (LRD). For the 2 and 5.5 Mbps channels, we observe that low-complexity hierarchical and hidden Markov models cannot characterize the bit-error processes, and consequently high-order full-state Markov chains are employed for accurate channel characterization. A multifractal wavelet model is employed to accurately capture the LRD 11 Mbps bit-error process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Performance Evaluation - Volume 64, Issue 4, May 2007, Pages 298–314
نویسندگان
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