Stochastic Geometric Analysis of User Mobility in Heterogeneous Wireless Networks

Bao, Wei; Liang, Ben

doi:10.1109/jsac.2015.2435451

Cited by 119 publications

(96 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1), which is widely considered in literature (e.g. [11], [15]). The conventional scheme executes a HO every time the user crosses a voronoi cell boundary to ensure that the best SINR association is always satisfied.…”

Section: A User Mobility and Handover Strategiesmentioning

confidence: 99%

“…Using stochastic geometry, the handover rate in cellular networks is characterized in [10] for a single tier cellular network with the random waypoint mobility model and in [11] for a multi-tier cellular network with an arbitrary mobility model. However, [10] and [11] focus only on the HO rate and do not investigate the effect of HO on the throughput. Stochastic geometry models that incorporate handover effect into throughput analysis can be found in [12]- [14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Velocity-Aware Handover Management in Two-Tier Cellular Networks

Arshad

ElSawy

Sorour

et al. 2017

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

While network densification is considered an important solution to cater the ever-increasing capacity demand, its effect on the handover (HO) rate is overlooked. In dense 5G networks, HO delays may neutralize or even negate the gains offered by network densification. Hence, user mobility imposes a nontrivial challenge to harvest capacity gains via network densification. In this paper, we propose a velocity-aware HO management scheme for two-tier downlink cellular network to mitigate the HO effect on the foreseen densification throughput gains. The proposed HO scheme sacrifices the best BS connectivity, by skipping HO to some BSs along the user's trajectory, to maintain longer connection durations and reduce HO rates. Furthermore, the proposed scheme enables cooperative BS service and strongest interference cancellation to compensate for skipping the best connectivity. To this end, we consider different HO skipping scenarios and develop a velocity-aware mathematical model, via stochastic geometry, to quantify the performance of the proposed HO scheme in terms of the coverage probability and user throughput. The results highlight the HO rate problem in dense cellular environments and show the importance of the proposed HO schemes. Finally, the value of BS cooperation along with handover skipping is quantified for different user mobility profiles.

show abstract

Section: A User Mobility and Handover Strategiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Velocity-Aware Handover Management in Two-Tier Cellular Networks

Arshad

ElSawy

Sorour

et al. 2017

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

show abstract

“…The authors in [13] also included a per-user fractional power control (FPC) in their model. The results in [12] have also been extended to the multitier UHF cellular networks in [14][15][16][17] and for systems performance analysis in [18][19][20]. However, as a result of blockage and the different propagation model, the result obtained for the UHF networks are not applicable to the mmWave networks.…”

Section: Related Workmentioning

confidence: 99%

Coverage and rate analysis in the uplink of millimeter wave cellular networks with fractional power control

Onireti

Imran

2018

J Wireless Com Network

View full text Add to dashboard Cite

In this paper, using the concept of stochastic geometry, we present an analytical framework to evaluate the signal-to-interference-and-noise-ratio (SINR) coverage in the uplink of millimeter wave cellular networks. By using a distance-dependent line-of-sight (LOS) probability function, the location of LOS and non-LOS users are modeled as two independent non-homogeneous Poisson point processes, with each having a different pathloss exponent. The analysis takes account of per-user fractional power control (FPC), which couples the transmission of users based on location-dependent channel inversion. We consider the following scenarios in our analysis: (1) pathloss-based FPC (PL-FPC) which is performed using the measured pathloss and (2) distance-based FPC (D-FPC) which is performed using the measured distance. Using the developed framework, we derive expressions for the area spectral efficiency. Results suggest that in terms of SINR coverage, D-FPC outperforms PL-FPC scheme at high SINR where the future networks are expected to operate. It achieves equal or better area spectral efficiency compared with the PL-FPC scheme. Contrary to the conventional ultra-high frequency cellular networks, in both FPC schemes, the SINR coverage decreases as the cell density becomes greater than a threshold, while the area spectral efficiency experiences a slow growth region.

show abstract

“…where D HO = H * d is the normalized time consumed in HO signaling, which is a function of overall HO rate H and delay per HO d. The HO rates are characterized in [12] for multi-tier PPP based cellular networks with the RSS association policy as…”

Section: User Mobility Analysismentioning

confidence: 99%