Dynamic Resource Allocation with Imperfect Channel Sensing –Heterogeneous Services in Cognitive Radio Network

نویسنده

  • S. Tamilarasan
چکیده

In cognitive radio networks (CRN), resource should dynamically be assigned to the users with respect to sensed radio atmospheres. Many works has been done for dynamic allocation but it is not practically easy because the secondary network is very difficult to know the right knowledge of dynamic radio atmospheres in CRN. In this object we study the different methods of dynamic resource allocation in CRN for diverse services. We proposed the joint power and channel allocation problem using the discrete stochastic optimization method. The simulation result provided significant improvements of effectiveness of the proposed system.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dynamic Resource Allocation in Cognitive Radio Networks – Priority Scheduling approach: Literature Survey

In this paper we presents a comprehensive literature survey of cognitive radio technology, focusing on its application to dynamic resource allocation, based on priority scheduling approach. Dynamic spectrum access provides resource sharing between primary users called licensed users (PUs) and Secondary Users called unlicensed users (SUs). An essential examination test is that in what capacity o...

متن کامل

Adaptive Radio Resource Management in Heterogeneous Wireless Networks

In this paper, adaptive channel management approach fuzzy neural networks in heterogeneous wireless networks (ACM-FNN) is presented to efficient resource allocation, and admission control schemes are needed to guarantee quality-of-service (QoS) for differentiated services. The channel management in a two-tier such as micro cell or macro cell wireless networks. Effective reliability and efficien...

متن کامل

Analysis of Energy Detector Based Spectrum Sensing in Fading Cooperative Cognitive Network

Ever increasing wireless services and networks results in spectrum scarcity. But already allocated spectrum is in under utilization in the current static fixed spectrum allocation method .So dynamic spectrum access is only solution for this issue .Spectrum sensing is one of the key technique in cognitive radio for dynamic spectrum access. There are many algorithm proposed for the spectrum sensi...

متن کامل

Distributed resource allocation with imperfect spectrum sensing information and channel uncertainty in cognitive femtocell networks

To meet the ever-increasing demands of mobile traffic, femtocells are considered as one of the promising solutions. In this paper, we study a sensing-based resource allocation scenario in cognitive femtocell networks and present an efficient distributed imperfect-spectrum-sensing-based resource allocation (DIRA) algorithm while considering the channel uncertainty to maximize the total data rate...

متن کامل

Jointly Optimal Sensing and Resource Allocation for Multiuser Overlay Cognitive Radios

Successful deployment of cognitive radios requires efficient sensing of the spectrum and dynamic adaptation of the available resources according to the sensed (imperfect) information. While most works design these two tasks separately, in this paper we address them jointly. In particular, we investigate an overlay cognitive radio with multiple secondary users that access orthogonally a set of f...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016