A NEW CHANNEL ASSIGNMENT METHOD IN COGNITIVE RADIO SYSTEM

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ZAP: a distributed channel assignment algorithm for cognitive radio networks

We propose ZAP, an algorithm for the distributed channel assignment in cognitive radio (CR) networks. CRs are capable of identifying underutilized licensed bands of the spectrum, allowing their reuse by secondary users without interfering with primary users. In this context, efficient channel assignment is challenging as ideally it must be simple, incur acceptable communication overhead, provid...

متن کامل

Rate-maximization Channel Assignment Scheme in Cognitive Radio Networks

In this paper, we consider the coordinated spectrum access problem in a multiuser single-transceiver cognitive radio network (CRN). Our objective is to maximize the sum-rate achieved by all contending CR users with respect to both spectrum assignment and transmission rate. The problem is posed as a utility maximization problem subject to hardware and interference constraints. Specifically, we s...

متن کامل

Channel Assignment in Cellular Radio

Kumar N . Sivarajan and Robert J . McEliece, California Institute of Technology,’ and John W. Ketchum, GTE Laboratories Incorporated. In this paper, we describe some heuristic channel assignment algorithms for cellular systems, that we have recently developed. These algorithms have yielded optimal, or near-optimal assignments, in many cases. The channel assignment problem can be viewed as a gen...

متن کامل

Channel assignment schemes for cooperative spectrum sensing in multi-channel cognitive radio networks

In this paper, channel assignment for spectrum sensing is studied in multi-channel cognitive radio networks to maximize the number of channels satisfying sensing performance (called available channels). Beginning with a nonlinear integer programming problem, we derive the upper bound of optimal value through many-to-many assignment problem and then propose three algorithms for both centralized ...

متن کامل

Establishment and Management of a New Media in the Health System; Radio Salmandan (Older Adults Radio)

Covid-19 was detected in Iran since February 2020, and until September 2020, all the provinces of the country were affected by this disease (1). During the Covid-19 pandemic, many older adults received a lot of stress and anxiety from the media and society, which caused them to become socially isolated and depressed. On the other hand, creating quarantine and social distancing as a policy adopt...

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

ژورنال

عنوان ژورنال: ICTACT Journal on Communication Technology

سال: 2018

ISSN: 0976-0091,2229-6948

DOI: 10.21917/ijct.2018.0275