The Use of Rateless Coding Technique in Cognitive Radio Networks Based on Primary User Channel Occupancy Modeling
Publish place: Telecommunication devices، Vol: 3، Issue: 1
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
View: 102
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_TDMA-3-1_005
تاریخ نمایه سازی: 28 مرداد 1402
Abstract:
In this paper, we investigate the channel selection technique in secondary user communication in cognitive radio network using rateless codes. In order to increase the tolerance of interference from the primary user appearance, also considering losses caused by collision between several secondary users, each secondary user uses rateless codes. We model the primary user occupancy and interference dynamics of a channel, which is used by a secondary user, using a Hidden Markov Model (HMM). The HMM is trained using Baum-Welch procedure and each secondary user uses a trained HMM to predict the primary user channel occupancy in future time slots and compute the Channel Availability Metric (CAM) for the channel. CAM is used by secondary user to select a preferable primary user channel for its communication. Simulation results, demonstrate the efficiency of the proposed channel selection technique in secondary user communication.
Keywords:
Authors
Iman Pourmohammadi
Department of Electrical and Computer Engineering, Birjand University, Iran
H Farrokhi
Department of Electrical and Computer Engineering, Birjand University, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :