Implementation of Faster-than-Nyquist Signaling using Software Defined Radios
In this paper, we consider the development and
implementation of a faster-than-Nyquist (FTN) signaling system
using a binary phase-shift keying modulation (BPSK). We
present a review of the theory and pertinent historical works
related to the FTN signaling scheme, as well as practical
work carried out in a laboratory environment. The popular
open-source, and radio-specific, signal processing application
GNU Radio was used to develop transmitter and receiver
architectures. These architectures were then deployed for execution
on various software-defined radio (SDR) hardware. We
have evaluated the minimum Euclidean distance (MED) and
probabilistic data association (PDA) estimators performance in
terms of bit-error-rate (BER). We observed for higher noise
variance to achieve a BER of 10^−3 with τ = 0.8 when using
MED and τ = 0.9 when using PDA.
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