In this work, we address the problem of transmitting JPEG compressed image over a lossy network. We introduce a combination of block level Triangular Interleaving Scheme (TRII), and Variable and Selective Forward Error Correction scheme (VS-FEC) to make the transmitted data more resilient while using the network bandwidth more efficiently in the presence of bursty losses. Our results show that ...

Thanks to large buffers, Forward Error Correction (FEC) improves the reliability of off-line streaming significantly. Real-time streaming however puts hard restrictions on the buffer size leaving FEC helpless for combating long link failures on a single path route. Compared with buffering, multi-path routing is another orthogonal method, which can make FEC efficient also for real-time streaming...

In networks there are basically two methods to tackle the problem of erroneous packets: Automatic Repeat Requests (ARQ) and Forward Error Correction (FEC). While ARQ means packet retransmissions, FEC uses additional bits to detect and correct distorted data. However, extensive field test of our sensor nodes have shown that FEC can take effect only as long as both sender and receiver are bit-wis...

To facilitate real-time voice communication through the Internet, forward error correction (FEC) and multiple description coding (MDC) can be used as low-delay packet-loss recovery techniques. We use both a Gilbert channel model and data obtained from real IP connections to compare the rate-distortion performance of different variants of FEC and MDC. Using identical overall rates with stringent...

The Federal Election Commission (FEC) (formally created in 1974 when Congress amended the Federal Election Campaign Act) is charged with the burdensome role of administering and enforcing federal election laws. Comprised of six voting commissioners, the FEC by law can have no more than three members of the same political party and in practice is balanced between three voting Democrats and three...

Today, Forward Error-Correcting (FEC) codes are mainly implemented in hardware, and many believe that their complexity prohibit their software implementation. This paper presents in detail how the performances of a software implementantion can be signiicantly improved. Diierent levels of optimization which are independent of the working environment are presented and discussed. The coding throug...

Reliability and security are two major criteria for survivable communications in error-prone wireless environments. To ensure reliable communications, Forward Error Correcting (FEC) codes such as Reed-Solomon (RS) codes are employed for error detection and correction by adding redundancies into the original data to form code words. Secure data communications based on FEC are achieved in many tr...

The Bluetooth radio multipath, fading indoor channel with Additive White Gaussian Noise (AWGN), was evaluated by simulation using a component-based architecture to model the Physical layer. The communication model included Forward Error Correction (FEC) and Automatic Repeat Request (ARQ) schemes. The observed Bit Error Rate (BER) versus Signal:Noise Ratio (SNR) using AWGN and a statistical chan...

Nowadays one of the discussed solutions for optical transmission systems at 100 Gbit/s (N x 100 Gbit/s) and beyond is coherent optical orthogonal frequency division multiplexing (CO-OFDM). Commonly hard-decision forward error correction (FEC) with the redundancy of 7% is assumed. Recently the improvement of the receiver sensitivity was analyzed by using a low density parity check (LDPC) code th...

Wireless communication is very vast and having lot of ideas for increasing capacity and BER performance. This paper describes the modeling and performance improvement of Wireless Regional Area Network (WRAN) ( IEEE 802.22 ) through different Forward Error Correction (FEC) Techniques.In this paper we have used different coding techniques over different modulation scheme. For simulation , we have...