کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
465072 697485 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adaptive RAKE receiver in chaos based pilot-added DS-CDMA system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Adaptive RAKE receiver in chaos based pilot-added DS-CDMA system
چکیده انگلیسی

This paper presents the theoretical analysis of adaptive multiuser RAKE receiver scheme in frequency selective fading channel for direct-sequence code division multiple access (DS-CDMA) system. Least mean square (LMS) algorithm is used to estimate the channel coefficients. Chaotic sequences are used as spreading sequence and corresponding bit error rate (BER) in closed form is derived for imperfect channel estimation conditions. Performances of chaotic sequences are compared with pseudorandom noise (PN) sequences. Under perfect synchronization assumption, various simulation results are shown to investigate the performance of the proposed system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physical Communication - Volume 16, September 2015, Pages 37–42
نویسندگان
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