# Analysis of the cell association for decoupled wireless access in a two tier network

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##### Citations

## A survey of mmWave user association mechanisms and spectrum sharing approaches: an overview, open issues and challenges, future research trends

## Full-Duplex Two-Tier Heterogeneous Network With Decoupled Access: Cell Association, Coverage, and Spectral Efficiency Analysis

## Intelligent System for Sensor Wireless Network Access: Modeling Methods of Network Construction

## Reliability and User-Plane Latency Analysis of mmWave Massive MIMO for Grant-Free URLLC Applications.

## On the design and performance analysis of mmWave-enabled next generation of wireless networks

##### References

## What Will 5G Be

## Stochastic Geometry and Its Applications

## Five disruptive technology directions for 5G

## Stochastic Geometry and Its Applications.

## Seven ways that HetNets are a cellular paradigm shift

##### Related Papers (5)

##### Frequently Asked Questions (11)

###### Q2. What are the future works mentioned in the paper "Analysis of the cell association for decoupled wireless access in a two tier network" ?

Lastly, if TDD becomes a standard for next generation of wireless network, then the future of decoupled wireless access is certainly very bleak.

###### Q3. What is the simplest way to model the PPP of blockers?

The thinned PPP is denoted as ΦIB with density λIB ,λIB(x) = λIPr(H > hm(x)), x ∈ (0, r), (3) where hm(x) is a function describing the distance between the LOS link and the ground at xhm(x) = − hT − hRr x+ hT .

###### Q4. What is the optimal height of the Tx of scell BS?

It implies that the optimal height of the Tx of scell BS to minimize the average pathloss is also a function of λI , as the optimal height of the Tx depends on the average distance between Tx and Rx.

###### Q5. What is the simplest way to describe the distribution of a point process?

The authors use Φk to denote the set of points obtained through PPP with density λk, that can be explicitly written asΦk ∆ = {xk,i ∈ R2 : i ∈ N+}, k ∈ K,where set K ∆= {scell,mcell}.

###### Q6. What is the effect of the scell blockage model on the effectiveness of wireless access?

It is obvious from the simulation results in Fig. 5, Fig. 6, Fig. 7, and Fig. 8 that antenna gain plays a significant role on the efficacy of decoupled wireless access.

###### Q7. What is the intensity of the path loss process of the tagged BS?

The intensity measure of the path loss process of the tagged BS for tiers 1 and 2 are given byΛm([0, t]) = πλmt 2 αm , (10)Λs([0, t]) = 2πλs[ ∫ t 1 αLOS0rPLOS(r)dr+∫ t 1 αNLOS0r(1− PLOS(r))dr ] .

###### Q8. What is the summary of the parameters used in this paper?

The summary of parameters and notations used in the rest of this paper is presented in Table IIn their system model it is assumed that all the UEs and sub6GHz BSs have omni directional antennas and antenna gains from a massive array of antenna elements are only accounted for the mmW BSs.

###### Q9. how to get the probability density function for the scell?

From (10) and (9) it is possible to obtain the probabilitydensity function (PDF) asfLm(t) = − dF̄m(t)dt =2πλmt 2 αm −1αm exp(−πλmt2αm ). (13)For the millimeter wave scell tier the CCDF is given byF̄Ls(t) = exp[ −2πλs (∫ t 1 αLOS0rPLOS(r)dr+∫ t 1 αNLOS0r(1− PLOS(r))dr )] . (14)By manipulating (1) and (2) it is possible to obtain an expression for the probability of associating to the macro cell in the uplink and in the downlink asPr(AUL = mcell) = Pr(Lmin,scell > aULLmin,mcell) = 1aUL∫ ∞0F̄Ls(l)fLm(laUL)dl,(15)andPr(ADL = mcell) = Pr(Lmin,scell > aDLLmin,mcell) = 1aDL∫ ∞0F̄Ls(l)fLm(laDL)dl,(16)whereaUL = Pu,scellT′ scellψscellPu,mcellT ′mcellψmcell ,andaDL = PscellTscellψscell PmcellTmcellψmcell .

###### Q10. what is the argument in a decoupled wireless network?

This contradicts with the argument made in [4] in support of decoupled wireless access; that is for future generation of wireless network, more UEs will connect with scell in DL for higher data rate and mcell will provide an umbrella coverage as well as UL connection toThe authors derive following conclusions from this study.

###### Q11. What is the future of decoupled wireless access?

if TDD becomes a standard for next generation of wireless network, then the future of decoupled wireless access is certainly very bleak.