An Improved Transmission Scheme in Cooperative Communication System

نویسندگان

  • Seung-Jun Yu
  • Young-Min Ko
  • Hyoung-Kyu Song
چکیده

Abstract—Recently developed cooperative diversity scheme enables a terminal to get transmit diversity through the support of other terminals. However, most of the introduced cooperative schemes have a common fault of decreased transmission rate because the destination should receive the decodable compositions of symbols from the source and the relay. In order to achieve high data rate, we propose a cooperative scheme that employs hierarchical modulation. This scheme is free from the rate loss and allows seamless cooperative communication.

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

Performance Analysis of Wireless Cooperative Networks with Iterative Incremental Relay Selection

In this paper, an iterative incremental relay selection (IIRS) scheme is considered for wireless cooperative networks in order to increase the reliability of transmission. Different from the conventional incremental relay selection which incrementally selects a best relay for only one iteration; the IIRS scheme iteratively applies the incremental relaying and relay selection processes. To evalu...

متن کامل

An Improved Cooperative Communication Scheme for IoT System

In internet of things (IoT) system, the communication scheme with reliability and low power is required to connect a terminal. Cooperative communication can achieve reliability and lower power than multiple-input multiple-output (MIMO) system. Cooperative communication increases the reliability with low power, but decreases a throughput. It has a weak point that the communication throughput is ...

متن کامل

An Improved Transmission Scheme Using an Extra Source in the Cooperative Communication System

For the quality of communication as multiple-input multipleoutput (MIMO), the cooperative scheme has been widely used in the wireless communication system. One of the cooperative schemes is spacetime cyclic delay diversity (STCDD). In this paper, a cooperative transmission scheme using two sources and applying STCDD is proposed. When a destination is distant from a source, the system uses two s...

متن کامل

An Efficient Hierarchical Modulation based Orthogonal Frequency Division Multiplexing Transmission Scheme for Digital Video Broadcasting

Due to the increase of users the efficient usage of spectrum plays an important role in digital terrestrial television networks. In digital video broadcasting, local and global content are transmitted by single frequency network and multifrequency network respectively. Multifrequency network support transmission of global content and it consumes large spectrum. Similarly local content are well ...

متن کامل

Adaptive Relay Scheme Based on Post SNR in Cooperative Communication System

In this paper, an adaptive relay scheme based on post SNR in cooperative communication system is proposed. conventional cooperative scheme has used the same modulation at a relay. The proposed scheme uses hierarchical modulation at the source and adaptive transmission based on the post signal to noise ratio (SNR) at a relay. Accordingly, the symbol error rate (SER) and throughput performances a...

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