Privileged users in zero-error transmission over a noisy channel
نویسندگان
چکیده
منابع مشابه
Privileged users in zero-error transmission over a noisy channel
The k-th power of a graph G is the graph whose vertex set is V (G), where two distinct ktuples are adjacent iff they are equal or adjacent in G in each coordinate. The Shannon capacity of G, c(G), is limk→∞ α(G ) 1 k , where α(G) denotes the independence number of G. When G is the characteristic graph of a channel C, c(G) measures the effective alphabet size of C in a zero-error protocol. A sum...
متن کاملRobust Image Transmission over Noisy Channel with Hybrid Transforms and Error Recovery
Noisy channels have significant influence on the quality of image transmission as the error rates increase and a degrading affect at higher error rates. This paper presents a recovery scheme for image transmission over noisy channels based on a hybrid transform and error correcting codes with error replacement strategy. In this paper we describe allocating redundant bits based on some importanc...
متن کاملTo Improve Bit Error Rate of Turbo Coded Ofdm Transmission over Noisy Channel
Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method in high speed wireless communications. By partitioning a wideband fading channel into flat narrowband channels, OFDM is able to mitigate the detrimental effects of multipath fading using a simple one-tap equalizer. There is a growing need to quickly transmit information wirelessly and accurately. OFDM is a ...
متن کاملRobust Image Transmission over Noisy Channel Using Independent Component Analysis
-----------------------------------------------------------------------------ABSTRACT------------------------------------------------------Independent Component Analysis (ICA) is the decomposition technique of a random vector of data into linear components which are “independent as possible.” Involves finding a suitable representation of multivariate data for computational and conceptual simpli...
متن کاملInformation transmission through a noisy quantum channel
Noisy quantum channels may be used in many information-carrying applications. We show that different applications may result in different channel capacities. Upper bounds on several of these capacities are proved. These bounds are based on the coherent information, which plays a role in quantum information theory analogous to that played by the mutual information in classical information theory...
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: Combinatorica
سال: 2007
ISSN: 0209-9683,1439-6912
DOI: 10.1007/s00493-007-2263-z