TIT
2010
13 years 7 months ago
2010
We determine that exponential Welch permutations lead in general to the smallest maximal frequency hops among all Costas permutations, and are also relatively easy to study, as a ...
TIT
2010
13 years 7 months ago
2010
In this paper, a new class of full-diversity, rate-one space
TIT
2010
13 years 7 months ago
2010
Small-world networks are networks in which the graphical diameter of the network is as small as the diameter of random graphs but whose nodes are highly clustered when compared wit...
TIT
2010
13 years 7 months ago
2010
The class of low-density parity-check (LDPC) codes is attractive, since such codes can be decoded using practical message-passing algorithms, and their performance is known to app...
TIT
2010
13 years 7 months ago
2010
We consider lossy source compression of a binary symmetric source using polar codes and the low-complexity successive encoding algorithm. It was recently shown by Arikan that polar...
TIT
2010
13 years 7 months ago
2010
Given a frame in Cn which satisfies a form of the uncertainty principle (as introduced by Candes and Tao), it is shown how to quickly convert the frame representation of every vect...
TIT
2010
13 years 7 months ago
2010
Abstract--An iterative decoding threshold analysis for terminated regular LDPC convolutional (LDPCC) codes is presented. Using density evolution techniques, the convergence behavio...
TIT
2010
13 years 7 months ago
2010
This work provides asymptotic properties of the autocorrelation functions of the wavelet packet coefficients of a fractional Brownian motion. It also discusses the convergence spe...
TIT
2010
13 years 7 months ago
2010
Wideband analog signals push contemporary analog-to-digital conversion systems to their performance limits. In many applications, however, sampling at the Nyquist rate is inefficie...
TIT
2010
13 years 7 months ago
2010
Abstract--Memories whose storage cells transit irreversibly between states have been common since the start of the data storage technology. In recent years, flash memories have bec...