Adaptive FEC Coding and Cooperative Relayed Wireless Image Transmission

نویسندگان

  • Hansong Xu
  • Kun Hua
  • Honggang Wang
چکیده

High quality image transmission through smart devices requires high transmission rate, throughput and low Bit Error Rate (BER). At the same time, energy efficiency is always the top issue for the battery-based smart devices such as smart phone, iPad, etc. In this paper, an adaptive Forward Error Correction (FEC) coding and cooperative relayed image transmission system is proposed, through which both transmission quality and energy efficiency could be promised under complex mobile communication channel environment. There are four key components in the proposed scheme: 1.Discrete Wavelet Transform (DWT) and wavelet based Decomposition 2. Split of Pixel-Position (PP) information and Pixel-Value (PV) information based unequal image resource allocation 3.Transmission through selective fading channel. 4. Multiple-relays and adaptive channel coding. Comparing to traditional methods, our proposed method is more practical to transmit high quality images through battery-constrained smart phone platforms.

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

MA/FEC: A QoS-Based Adaptive FEC for Multicast Communication in Wireless Networks

Wireless channels are highly affected by unpredictable factors such as cochannel interference, adjacent channel interference, propagation path loss, shadowing and multipath fading. The unreliability of media degrades the transmission quality seriously. Forward Error Correction (FEC) schemes are frequently used in wireless environments to reduce the high bit error rate of the channel. In this pa...

متن کامل

Wireless Link Dimensioning and Transmission Parameters Optimisation

This paper provides guidelines for Wireless ATM (WATM) link dimensioning and coding parameters optimisation subject to meeting specified Quality of Service (QoS) requirements. It takes into consideration a comprehensive set of coding as well as teletraffic issues: (1) effects of retransmissions of erroneous packets using Automatic Repeat Request (ARQ) protocols, (2) modulation efficiency (3) Fo...

متن کامل

On the Performance of Cooperative Diversity Protocols in Practical Wireless Systems

The concepts of cooperative diversity promise to offer the benefits of spatial diversity gains to handheld wireless devices with single antennas. The information-theoretic bounds that have been established recently serve as basic guidelines; yet, the performance of such protocols should additionally be examined for more realistic assumptions. Towards this end, we study cooperative diversity pro...

متن کامل

ADAPTIVE CODING AND TRANSMISSION PARADIGMS FOR WIRELESS CHANNELS A Light-Hearted Overview

Following a brief historical perspective on channel coding the concept of near-instantaneously adaptive wireless transceivers is introduced as a counter-measure of mitigating the channelquality fluctuations experienced in wireless communications. It is argued that channel coded adaptive modulation schemes can be viewed as a lower complexity alternative of mitigating the channel quality fluctuat...

متن کامل

Algorithms for Video Transmission over Wireless Channels

New schemes for video transmission over wireless channels are described. Content based approaches for video segmentation and associated resource allocation are proposed. We argue that for transport over wireless channels, diierent video content requires diierent form of resource allocation. Joint source/channel coding techniques (particularly content/data dependent FEC/ARQ schemes) are used to ...

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 2014