Autoregressive stochastic models for the computer simulation of correlated Rayleigh fading processes are investigated. The unavoidable numerical difficulties inherent in this method are elucidatedâ€¦ (More)

A recently found "better than" raised-cosine pulse is employed in pulse-shaping orthogonal frequency-division multiplexing to reduce the inter-carrier interference due to frequency offset. Theâ€¦ (More)

Sums of lognormal random variables occur in many problems in wireless communications because signal shadowing is well modeled by the lognormal distribution. The lognormal sum distribution is notâ€¦ (More)

Rayleigh signal fading due to multipath propagation in wireless channels is widely modeled using sum-of-sinusoids simulators. In particular, Jakesâ€™ simulator and derivatives of Jakesâ€™ simulator haveâ€¦ (More)

A novel ISI-free pulse is presented that has smaller maximum distortion, a more open receiver eye, and a smaller probability of error in the presence of symbol timing error than the Nyquist pulse forâ€¦ (More)

The statistical properties of Clarke's fading model with a finite number of sinusoids are analyzed, and an improved reference model is proposed for the simulation of Rayleigh fading channels. A novelâ€¦ (More)

A characteristic function method is proposed for precisely calculating the bit-error probability of time-hopping (TH) ultra-wideband (UWB) systems with multiple-access interference in an additiveâ€¦ (More)