Marco Chiani', Moe Win", Albert0 Zanella*, Jack H. Winters' * CSITE-CNR, DEE, University of Bologna, v.le Risolgimento, 2,40136 Bologna, Italy (e-mail: {mchiani, azanella)@deis .unibo. it) ' LIDS, Massachusetts Institute ofTechnology, Cambridge, MA 02139USA, (e-mail: winaieee .org) ' Jack Winters Communications, LLC, PMB 117, I385 Hwy 35, Middletown, NJ 07748-2070 USA, (e-mail: j acksdackWinter...

We investigate the impact of cross-phase modulation on optical AM-PSK modulation formats, namely duobinary, PSBT and dicode, as function of channel wavelength separation and channel power.

ilktract-In this paper, a new software defined radio plat-forim with multiport-based direct conversion is proposed, named SOPRANO (Software Programmable and Hardware Eeconfigurable Architecture for Eetwgrk). The main features of SOPRANO are a high-level design methodology for digital circuits, a new mixer-less direct conversion method, and software algorithms for multi-band and multi-mode opera...

— A construction for a family, Q M 2 , of low-correlation sequences over QAM alphabet of size M 2 = 2 2m is presented with maximum nontrivial normalized correlation parameter bounded above by a √ N , where N is the period of the sequences in the family and where a ranges from 2.10 in the case of 64-QAM modulation to 2.76 for large m. Interestingly, along the way, for the particular case of the ...

ABSTRACT Satellite communication systems suffer from nonlinear intersymbol interference due to the limited bandwidth of the filters and the need to operate the onboard amplifier near saturation. We consider the blind equalization problem for this class of systems in a multichannel setting. By exploiting the bandpass nature of the channel and the statistical properties of PSK constellations, a s...

This contribution considers the data-aided (DA) maximum-likelihood carrier phase ambiguity resolution algorithm for coded M-PSK signaling. We derive analytical performance results of the algorithm when operating in the presence of phase estimation errors. As the use of a pilot sequence reduces the spectral efficiency of the system, we determine analytically the minimal pilot sequence length for...

Noisy index coding problems over AWGN channel are considered. For a given index coding problem and a chosen scalar linear index code of length N , we propose to transmit the N index coded bits as a single signal from a 2 PSK constellation. By transmitting the index coded bits in this way, there is an N/2 fold reduction in the bandwidth consumed. Also, receivers with side information satisfying ...

TLS is by far the most important protocol on the Internet for negotiating secure session keys and providing authentication. Only very recently, the standard ciphersuites of TLS have been shown to provide provably secure guarantees under a new notion called Authenticated and Confidential Channel Establishment (ACCE) introduced by Jager et al. at CRYPTO’12. In this work, we analyse the variants o...

In this paper we examined the broadband fixed wireless access (BFWA) systems by coherent and non-coherent detection using M-ary PSK with Gray code. A closed form for the exact symbol error rate and bit error rate (BER) of M-ary PSK is presented. We show through analysis the physical limitations of the BFWA channels over different values of M (2,4,8,16,32) and the performance difference between ...

We address the problem of blind recovery of multiple sources from their linear convolutive mixture with the cross-comelation and constant modulus algorithm. The steady state meansquared error of this algorithm is first derived to justify the proposal of a new cross-correlation and constant modulus type algorithm for PAM-PSK type non-constant modulus signals. Simulation studies are presented to ...