Sequential Joint Spectrum Sensing and Channel Estimation for Dynamic Spectrum Access

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

Joint spectrum sensing and access for stable dynamic spectrum aggregation

Spectrum aggregation is an emerging technology to satisfy the data rate requirement of broadband services for next-generation wireless communication systems. In dynamic spectrum environment, in which the spectrum availability is time-varying, it is quite challenging to maintain the stability of spectrum aggregation. In this paper, we investigate the spectrum sensing and access schemes to minimi...

متن کامل

Joint Design for Opportunistic Spectrum Access with Multi-Channel Sensing

Consider a spectrum of N orthogonal channels licensed to a slotted primary network. Let Sn(t) ∈ {0 (busy), 1 (idle)} denote the occupancy of channel n in slot t. We assume that the spectrum occupancy S(t) ∆ = [S1(t), . . . , SN(t)] follows a discrete-time homogeneous Markov process with finite state space S ∆ = {0, 1} and known transition probabilities {Ps,s′}s,s′∈S, where Ps,s′ ∆ = Pr{S(t+ 1) ...

متن کامل

Sequential opportunistic spectrum access with imperfect channel sensing

In this paper, we exploit channel diversity for opportunistic spectrum access (OSA). Our approach uses instantaneous channel quality as a second criterion (along with the idle/busy status of the channel) in selecting channels to use for opportunistic transmission. The difficulty of the problem comes from the fact that it is practically infeasible for a cognitive radio (CR) to first scan all cha...

متن کامل

Enhanced Compressive Wideband Frequency Spectrum Sensing for Dynamic Spectrum Access

Wideband spectrum sensing detects the unused spectrum holes for dynamic spectrum access (DSA). Too high sampling rate is the main problem. Compressive sensing (CS) can reconstruct sparse signal with much fewer randomized samples than Nyquist sampling with high probability. Since survey shows that the monitored signal is sparse in frequency domain, CS can deal with the sampling burden. Random sa...

متن کامل

Traffic-Aware Multi-Channel Multi-Stage Spectrum Sensing Protocols for Dynamic Spectrum Access

of the Dissertation Traffic-Aware Multi-Channel Multi-Stage Spectrum Sensing Protocols for Dynamic Spectrum Access

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: IEEE Journal on Selected Areas in Communications

سال: 2014

ISSN: 0733-8716

DOI: 10.1109/jsac.2014.141105