Modelling and simulation of channel power delay profile under indoor stair environment

Reverberation Time and Power Model in Indoor Wireless Scenarios

“…The path gain model is based on [1], [4] and the PDP model is based on existing theories of Discrete Tapped Delay Line (DTDL) models [8], [17]. Reverberation parameters can be applied to obtain the distance-dependent path gain model as follows [1], [4]:…”

“…Next, small scale fading parameters are analyzed to fully investigate the channels and obtain the PDP models. To this end, the DTDL method [8] is applied, the amplitude of each delay pin at each measurement position is normalized by the predicted path gain as follows:…”

“…The shape parameter represents the severity of the fading and it follows the lognormal distribution [8], [17], while the scale parameter describes the mean power of the normalized amplitudes averaged over a location [8]. It is proposed in the novel model that ω is distance-independent and it experiences a quasi-linear decaying versus the time delay τ, for the reason of the aforementioned reverberation effect.…”

“…It is proposed in the novel model that ω is distance-independent and it experiences a quasi-linear decaying versus the time delay τ, for the reason of the aforementioned reverberation effect. The two parameters can be presented as follows: It is concluded that the complexity of fitting and modeling procedures are reduced in the proposed model compared to those in literature [8], [17].…”

“…In reverberation models, the PDP is interpreted as the superposition of primary component and reverberant component. The former is subjected to power-law decaying while the latter experiences a quasi-linear decaying caused by reverberation effect [8]. Reverberation models use the reverberation effect instead of wave guiding effect to physically explain the phenomenon that path gain index falls far below 2 (i.e.…”