A Jointly Optimized VariableM-QAM and Power Allocation Scheme for Image Transmission

نویسندگان
چکیده

برای دانلود رایگان 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

A Jointly Optimized Variable M-QAM and Power Allocation Scheme for Image Transmission

In this paper, we introduce an improved image transmission scheme over wireless channels with flat Rayleigh fading. The proposed scheme jointly optimizes bit power and modulation level to maximize the peak signal-tonoise ratio (PSNR) of the reconstructed image and hence improves the perceptual quality of the received image. In this optimization process, the significance of bits with regard to t...

متن کامل

Jointly power and bandwidth allocation for a heterogeneous satellite network

Due to lack of resources such as transmission power and bandwidth in satellite systems, resource allocation problem is a very important challenge. Nowadays, new heterogeneous network includes one or more satellites besides terrestrial infrastructure, so that it is considered that each satellite has multi-beam to increase capacity. This type of structure is suitable for a new generation of commu...

متن کامل

An Unequal Power Allocation Scheme for JPEG Image Transmission

With the introduction of high data rates in the emerging wireless standards, real-time multimedia communication is becoming common in wireless communication systems. The need for efficient joint source-channel coding (JSCC) and power optimization is growing as these new multimedia services, especially images and videos are introduced in commercial wireless communication systems. These technique...

متن کامل

Jointly Optimized Buffer Allocation and Sequencing Rules for a FMS

We consider a flexible manufacturing system processing a variety of different part types. Parts of all types are first processed in a cell, they then continue to separate downstream stations. The total number of buffer spaces for these stations is limited. We determine the optimal buffer allocation and the corresponding optimal scheduling rule such that expected profit is maximized. The resulti...

متن کامل

A Joint Power Allocation and Adaptive Channel Coding Scheme for Image Transmission over Wireless Channels

In this paper, a joint adaptive power allocation and channel coding optimization scheme is proposed. This scheme exploits the difference in importance among bits used to represent an image or video signal. An offline iterative algorithm is developed to find the optimum combination of coding and power to be used for the transmission of individual bits. Optimality here is in the sense of minimizi...

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: Journal of Computer Networks and Communications

سال: 2012

ISSN: 2090-7141,2090-715X

DOI: 10.1155/2012/642649