Geolocation-Based Access for Vehicular Communications: Analysis and Optimization via Stochastic Geometry

Martín-Vega, Francisco J.; Soret, Beatriz; Aguayo-Torres, Mari Carmen; Kovács, István Z.; Gómez, Gerardo

doi:10.1109/tvt.2017.2775249

Cited by 55 publications

(32 citation statements)

References 40 publications

(42 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The considered distance-proportional UL power control technique only requires the knowledge of the locations of the BSs, opposed to the truncated channel-inversion power control scheme, that demands further computational resources for the channel estimation. This knowledge can be obtained by monitoring the locations of the BSs through a low-rate feedback channel or by a global positioning system mechanism [30]. For the DL transmissions, we consider a fixed power transmission allocation scheme, i.e.…”

Section: Power Allocationmentioning

confidence: 99%

Heterogeneous FD-mm-Wave Cellular Networks With Cell Center/Edge Users

Skouroumounis¹,

Psomas²,

Krikidis³

2019

IEEE Trans. Commun.

View full text Add to dashboard Cite

In this paper, we assess the effect of full-duplex (FD) radio in the context of millimeter-wave (mmWave) communications. Particularly, we propose an analytical framework, based on stochastic geometry, to evaluate the performance of heterogeneous FD-mmWave cellular networks for two user location-based classifications, namely cell-center users (CCUs) and cell-edge users (CEUs). Moreover, we evaluate the performance of the considered networks with successive interference cancellation (SIC) capabilities. Based on the proposed framework, analytical expressions for the coverage and sum-rate performance are derived. We investigate the impact of FD-mmWave communications on the network performance of CCUs/CEUs and quantify the associated performance gains under different network parameter settings. Our results demonstrate the beneficial combination of FD radio with heterogeneous mmWave cellular networks, since it increases the spectral efficiency but also alleviates the effects of the multi-user interference. Furthermore, we present the trade-off between the coverage and sum-rate performance of heterogeneous FD-mmWave cellular networks for the considered user classifications. The results show that half-duplex mode is beneficial for the CEUs to achieve better network performance, as opposed to the CCUs for which FD mode is more efficient. Finally, we show the effectiveness of SIC on the network performance, with significant performance gains for the CEUs. Index TermsFull-duplex, heterogeneous networks, millimeter-wave, successive interference cancellation, stochastic geometry.Christodoulos Skouroumounis, Constantinos Psomas and Ioannis Krikidis are with the communications due to its abundant spectrum resources, which can lead to multi-Gbps rates [14]. As a result of their unique features such as directivity, sensitivity to blockages, and higher path losses, mmWave communications have fundamental differences with the current sub-6 GHz communications [14]. Due to these differences, the unique features of mmWave communications are required to be considered in the design of network architectures and protocols to fully exploit the potentials of mmWave communications. Network densification is proposed to address the large path-loss attenuation of mmWave frequencies, by bringing the transmitter closer to the receiver. This results in increased reliability, improved spectrum efficiency, and increased network capacity. Another important technique to compensate the large path-loss attenuation is the employment of directional antennas, which becomes feasible due to the short wavelength of mmWave signals. In addition to the difficulties caused by the unique features of the mmWave signals, recent studies have shown that these features also cause a positive effect on the network performance, which is the mitigation of the overall interference [15], [16], [18], [19]. Thus, the co-design of FD radio and mmWave networks is of critical importance in order to combat the severe multi-user interference caused by the FD technology by exploiting...

show abstract

Section: Power Allocationmentioning

confidence: 99%

Heterogeneous FD-mm-Wave Cellular Networks With Cell Center/Edge Users

Skouroumounis¹,

Psomas²,

Krikidis³

2019

IEEE Trans. Commun.

View full text Add to dashboard Cite

show abstract

“…For traditional mmWave networks and vehicular communications, stochastic geometry has already been widely utilized [18,[20][21][22][23][24][25][26][27]. The authors in [20] modeled line-of-sight (LOS) and non-LOS (NLOS) base stations (BSs) as two independent thinning Poisson point processes (PPPs) to evaluate the coverage and rate performance of cellular networks.…”

Section: A Related Work and Motivationsmentioning

confidence: 99%

“…However, in VPSs, the length of one platoon is nonnegligible. To this end, Matérn hard-core process (MHCP) of type II has been investigated in [27]. To simplify the analysis, the authors in [27] regarded MHCP as a stationary thinning PPP, which sacrifices the evaluation accuracy.…”

Section: A Related Work and Motivationsmentioning

confidence: 99%

Modeling and Analysis of MmWave V2X Networks With Vehicular Platoon Systems

Liu

Deng

et al. 2019

IEEE J. Select. Areas Commun.

View full text Add to dashboard Cite

show abstract

“…Ye and Zhuang proposed an adaptive control MAC solution that switches between 802.11p and TDMA-based MAC depending on the network load [22]. A study of the periodical broadcast with geolocation-based access in LTE V2X can be found in [23]. It can be seen that these works usually aim to achieve a significant performance improvement at the cost of a larger overhead necessary for implementing an effective coordination in the network.…”

Section: Related Workmentioning

confidence: 99%

Contention Intensity Based Distributed Coordination for V2V Safety Message Broadcast

Gao

Zhao

et al. 2018

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

In this paper, we propose a contention intensity based distributed coordination (CIDC) scheme for safety message broadcast. By exploiting the high-frequency and periodical features of the safety message broadcast, the applicationlayer design of the CIDC enables each vehicle to estimate the instantaneous channel contention intensity in a fully distributed manner. With the contention intensity information, the MAC layer design of CIDC allows vehicles to adopt a better channel access strategy compared to the 802.11p. This is because CIDC selects the initial back-off counter for each new packet deterministically, i.e., based on the contention intensity, instead of randomly. The proposed CIDC is modeled, and key performance indicators in terms of the packet collision probability and average contention delay, are derived. It is shown that the proposed change in the initial counter selection leads to a system model completely different from the classic Markov chain based model. Moreover, the proposed CIDC, fully distributed and compatible with the 802.11p, can achieve both a much lower collision probability and a smaller contention delay compared with 802.11p at the cost of a small communication and computation overhead. Extensive simulation results demonstrate the effectiveness of the CIDC in both of the accurate and the erroneous contention intensity estimation scenarios.

show abstract

Geolocation-Based Access for Vehicular Communications: Analysis and Optimization via Stochastic Geometry

Cited by 55 publications

References 40 publications

Heterogeneous FD-mm-Wave Cellular Networks With Cell Center/Edge Users

Heterogeneous FD-mm-Wave Cellular Networks With Cell Center/Edge Users

Modeling and Analysis of MmWave V2X Networks With Vehicular Platoon Systems

Contention Intensity Based Distributed Coordination for V2V Safety Message Broadcast

Contact Info

Product

Resources

About