An SNR-based admission control scheme in WiFi-based vehicular networks

Kim, Ki‐Hun; Kim, Younghyun; Pack, Sangheon; Choi, Nakjung

doi:10.1186/1687-1499-2011-204

Cited by 7 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By direct (or one-hop) broadcast approach on the control channel (CCH), analysis of the 802.11p safety-critical broadcast in VANET enviroment has been studied in [12]. To show impact of performance anomaly at the intersections in WiFi-based vehicular networks in [15], a signal-to-noise (SNR) based admission control scheme that excludes vehicles with bad channel qualities an analytical modeel has been developed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analytical Models and Performance Evaluation of Vehicular-to-Infrastructure Networks With Optimal Retransmission Number

Bozkurt¹

2021

Preprint

View full text Add to dashboard Cite

Vehicle-to-infrastructure and vehicle-to-vehicle communications has been introduced to provide high rate Internet connectivity to vehicles to meet the ubiquitous coverage and increasing high-data rate internet and multimedia demands by utilizing the 802.11 access points (APs). In order to evaluate the performance of vehicular networks over WLAN, in this paper, we investigate the transmisison and network performance of vehicles that pass through AP by considering contention nature of vehicles over 802.11 WLANs. Firstly, we derived an analytical traffic model to obtain the number of vehicles under transmision range of an AP. Then, incorporating vehicle traffic model with Markov chain model and for arrival packets, M/G/1/K queuing system, we developed a model evaluating the performance of DCF mechanism with an optimal retransmission number. We also derived the probability of mean arrival rate l to AP. A distinctive aspect of our proposed model is that it incorporates both vehicular traffic model and backoff procedure with M/G/1/K queuing model to investigate the impact of various traffic load conditions and system parameters on the vehicular network system. Based on our model, we show that the delay and througput performance of the system reduces with the increasing vehicle velocity due to optimal retransmision number m, which is adaptively adjusted in the network with vehicle mobility.

show abstract

Section: Introductionmentioning

confidence: 99%

“…al, 2013). To show impact of performance anomaly at the intersections in WiFi-based vehicular networks (Kim et. al, 2011) has developed a signal-to-noise (SNR) based admission control scheme that excludes vehicles with bad channel qualities and an analytical model.…”

Section: Introductionmentioning

confidence: 99%

Analytical Models and Performance Evaluation of Vehicular-to-Infrastructure Networks With Optimal Retransmission Number

Bozkurt¹

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Initialize We can easily see that the number of non-zero entries a pq on column q for all p ∈ M is at most three from Equation 8. Therefore, the number of non-zero entries on the same column in M 1 and M 2 is at most three.…”

Section: Algorithm 1: Matrix Partitioning Rule For the Constraint Matmentioning

confidence: 99%

“…Recently, Wi-Fi access technology for moving vehicles has drawn considerable attention, since it has been shown that Wi-Fi connectivity is feasible even at vehicular speed [1][2][3][4][5][6][7][8][9]. Moreover, the wide deployment of numerous WiFi access points (APs) in the urban areas [3] provides cost-effective and broadband Internet connectivity to the passengers.…”

Section: Introductionmentioning

confidence: 99%

A theoretical approach to optimal association control in vehicular Wi-Fi networks

Hwang

Choi

Yoo

et al. 2014

J Wireless Com Network

View full text Add to dashboard Cite

The recent ubiquitous deployment of Wi-Fi access points (APs) has offered vehicles to use the high-speed and low-cost Internet service via the roadside APs. However, the high mobility of vehicles and the limited coverage of APs render some challenges. First, it results in frequent handoffs, thus leading to long delay and low service availability. Second, the available AP sets and their channel quality change dynamically, making the AP selection problem even harder. Therefore, there is a strong need to develop an efficient association control mechanism that provides efficient vehicular Wi-Fi access. In this paper, we present a theoretical framework to formulate the optimal association problem through non-linear integer programming, whose objective function is to maximize the throughput or to minimize the handoff overhead. We show that this problem holds the totally unimodular (TU) property and is thus solvable in polynomial time. Then, we study the optimality of association control by comparing existing online algorithms through real trace-based simulations. The results show that there exists a large performance gap between the performance of existing online algorithms and the optimal one. We also observe that the association control algorithm can be further improved if it has access to future knowledge. Particularly, the offline optimal with future AP information improves the performance of the local optimal by up to 10%.

show abstract

Method and System for Measuring the Performance Based on the WIFI in Smart Media

Cho

Park²,

Song

et al. 2012

Lecture Notes in Electrical Engineering

View full text Add to dashboard Cite

An SNR-based admission control scheme in WiFi-based vehicular networks

Cited by 7 publications

References 14 publications

Analytical Models and Performance Evaluation of Vehicular-to-Infrastructure Networks With Optimal Retransmission Number

Analytical Models and Performance Evaluation of Vehicular-to-Infrastructure Networks With Optimal Retransmission Number

A theoretical approach to optimal association control in vehicular Wi-Fi networks

Method and System for Measuring the Performance Based on the WIFI in Smart Media

Contact Info

Product

Resources

About