منابع مشابه
Rateless spinal codes Citation
A fundamental problem in wireless networks is to develop communication protocols that achieve high throughput in the face of noise, interference, and fading, all of which vary with time. An ideal solution is a rateless wireless system, in which the sender encodes data without any explicit estimation or adaptation, implicitly adapting to the level of noise or interference. In this paper, we pres...
متن کاملRateless Codes and Big Downloads
This paper presents a novel algorithm for downloading big files from multiple sources in peer-to-peer networks. The algorithm is simple, but offers several compelling properties. It ensures low handshaking overhead between peers that download files (or parts of a files) from each other. It is computationally efficient, with cost linear in the amount of data transfered. Most importantly, when no...
متن کاملRateless Codes for Finite Message Set
In this study we consider rateless coding over discrete memoryless channels (DMC) with feedback. Unlike traditional fixed-rate codes, in rateless codes each codeword in infinitely long, and the decoding time depends on the confidence level of the decoder. Using rateless codes along with sequential decoding, and allowing a fixed probability of error at the decoder, we obtain results for several ...
متن کاملOn the Practical Performance of Rateless Codes
We propose a new parameter for optimizing the performance of rateless codes by minimizing latency and data overhead. We call it Latency-Overhead Product (LOP). It is based on ideas used in the analysis of digital circuits. We demonstrate the effectiveness of the LOP parameter for a specific class of rateless codes called Online codes (OC). We give results from experiments in ideal channel and s...
متن کاملPerformance of Rateless Codes under Spatial Coupling
Spatial coupling of individual LDPC codes improves the BP threshold of the coupled ensemble to the MAP threshold of the underlying ensemble. In this report, we investigate the performance of spatial coupling on LDGM codes which might lead to constructing a new class of rateless codes. In what follows, we study Raptor codes as a class of rateless codes and investigate spatial coupling on LDPC en...
متن کاملذخیره 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: IEEE Transactions on Wireless Communications
سال: 2009
ISSN: 1536-1276,1558-2248
DOI: 10.1109/twc.2009.081409