Exact Line-of-Sight Probability for Channel Modeling in Typical Indoor Environments

Glazunov

IEEE Trans. Veh. Technol.

2020

In this paper, we present part of our ground-breaking work that bridges building design and wireless network deployment. The original contributions lie in: i) defining interference gain (IG) as an intrinsic figure of merit (FoM) of a building's wireless performance in terms of interference signal blockage; ii) developing analytic models to calculate IG; and iii) developing a novel method to calculate the optimum transmitting power to achieve the maximum IG of a building. The IG is derived as an integral transform of the probability density function (PDF) of the distance from a probe user equipment (UE) with a random position relative to a wall, and with a uniformly distributed direction. Furthermore, the PDF of the random distance is derived in closed-form for rectangular rooms to facilitate fast computation of the IG of a building under design (BUD) tiled by rectangular rooms and corridors. For BUD with irregular rooms, a random shooting algorithm (RSA) is proposed to numerically compute the PDF. The closed-form expression and the RSA are compared and validated. Numerical results show the validity of both the model to calculate IG and the methodology to derive the optimum transmitting power to achieve the maximum IG of a given building. The results shed light to architects on how to design buildings with desirable wireless performance and for radio engineers on how densely wireless access points can be deployed to approach the intrinsic wireless performance of a building.

mentioning

confidence: 99%

Wireless Energy Efficiency Evaluation for Buildings Under Design Based on Analysis of Interference Gain

Glazunov

IEEE Trans. Veh. Technol.

2020

“…where P = Q 2 + w − 2 α +w − 2 α , K = 1 + Q+2Q 0,1 w 2 α , Q and Q 0,1 are defined in (15) and (20). Then take the secondorder derivation of C M =1 (λ) and we have…”

Section: Appendix D Proof Of Newton's Methodsmentioning

confidence: 99%

On the Performance of Indoor Multi-Story Small-Cell Networks

Chen

IEEE Trans. Wireless Commun.

et al. 2021

Self Cite

“…For known closed-form expressions of I L,n TM , P L,n TM , I N,n TM , and P N,n TM , it is straightforward to compute I L , P L , I N , and P N by (20)(21)(22)(23). For an arbitrary n TM (i.e., TM of a wall contribution to the computed signals) we have…”

Section: Analytic Computationmentioning

confidence: 99%

“…and NLOS scenarios. Second, the obtained (20)(21)(22)(23) and (18)(19) are substituted into (16)(17) to obtain the FoM. rectangular rooms.…”

Section: Analytic Computationmentioning

confidence: 99%

See 1 more Smart Citation

Wireless Performance Evaluation of Building Layouts: Closed-Form Computation of Figures of Merit

Zhang,

Glazunov,

Zhang

2020

Preprint

Self Cite

This paper presents a part of our ground-breaking work on evaluation of buildings in terms of wireless friendliness in the building-design stage. The main goal is to devise construction practices that provide for a good performance of wireless networks deployed in buildings. In this paper, the interference gain (IG) and power gain (PG) are defined as two figures of merit (FoM) of the wireless performance of buildings. The FoMs bridge the gap between building design and wireless communications industries. An approach to derive exact closed-form equations for these FoMs is proposed for the first time. The derived analytic expressions facilitate straightforward and more computationally efficient numerical evaluation of the proposed FoMs as compared to Monte Carlo simulations for well-known indoor propagation models.It is shown that the derived closed-form expression can be readily employed to evaluate the impact of building properties, such as the sizes and the aspect ratios (ARs) of rooms, on the wireless performance.The proposed approach sheds light to architects on evaluation and design of wireless-friendly building layouts.