کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9650992 | 666636 | 2005 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimum OVSF code reassignment in Wideband CDMA forward radio link
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
هوش مصنوعی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This paper focuses on minimizing the code reassignment cost in Wideband CDMA forward link. The channel allocation of wireless links can be transformed into the Orthogonal Variable Spreading Factor (OVSF) code assignment problem. Orthogonality constraint in the OVSF code tree may prevent efficient resource utilization. Code reassigning process can achieve an average of 20% gain of system throughput. Minimizing the code reassignments is essential in reducing the complexity of the wireless system. We present the design methodology and implementation techniques of the proposed efficient algorithm MIN in optimizing the reassignment cost. The simulation result indicates that the MIN algorithm can reduce in average 60% of the reassignment cost compared to that of the heuristic method and it is feasible for implementing in Base Station or Radio Network Controller.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Sciences - Volume 174, Issues 1â2, 28 June 2005, Pages 81-101
Journal: Information Sciences - Volume 174, Issues 1â2, 28 June 2005, Pages 81-101
نویسندگان
Fen-Fen Shueh, Wen-Shyen Eric Chen,