Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks

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

Performance Analysis of Relay Subset Selection for Amplify-and-Forward Cognitive Relay Networks

Cooperative communication is regarded as a key technology in wireless networks, including cognitive radio networks (CRNs), which increases the diversity order of the signal to combat the unfavorable effects of the fading channels, by allowing distributed terminals to collaborate through sophisticated signal processing. Underlay CRNs have strict interference constraints towards the secondary use...

متن کامل

SNR Maximization through CSI based Relay-Subset Selection in Amplify-and- Forward Cognitive Radio Networks

This paper addresses the issues in Underlay Cognitive Radio Networks employing amplify-and-forward relaying. The secondary users operating in an underlay mode in the frequency band of primary users must satisfy interference constraints to keep primary communication undisturbed. We propose a solution to this problem using cognitive relays and perform channel state information (CSI) based relay s...

متن کامل

Indirect Channel Sensing for Cognitive Amplify-and-Forward Relay Networks

—In cognitive radio network the primary channel information is beneficial. But it can not be obtained by direct channel estimation in cognitive system as pervious methods. And only one possible way is the primary receiver broadcasts the primary channel information to the cognitive users, but it would require the modification of the primary receiver and additional precious spectrum resource. Coo...

متن کامل

On the Performance of Cooperative Amplify-and-Forward Relay Networks

This paper provides a general analysis of cooperative amplify-and-forward relay networks and gives a unified and comparative view of various proposed systems. The studied cooperative relay networks offer spatial diversity gains that conventional multi-antenna systems often fail to achieve due to limitations of the feasible number of antennas per terminal and correlated propagation. We first pre...

متن کامل

Performance analysis of MIMO cognitive amplify-and-forward relay networks with orthogonal space-time block codes

In this paper, we study the performance of multiple-input multiple-output cognitive amplify-and-forward relay networks using orthogonal space–time block coding over independent Nakagami-m fading. It is assumed that both the direct transmission and the relaying transmission from the secondary transmitter to the secondary receiver are applicable. In order to process the received signals from thes...

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: The Scientific World Journal

سال: 2014

ISSN: 2356-6140,1537-744X

DOI: 10.1155/2014/548082