Wireless Vehicle Communication for Traffic Control in Urban Areas

Daoud, Ramèz M.; El-Dakroury, M. A.; ElSayed, Hany M.; Amer, Hassanein H.; El-Soudani, Magdy S.; Sallez, Yves

doi:10.1109/iecon.2006.347356

Cited by 11 publications

(16 citation statements)

References 12 publications

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“…2). This will cause an increase in the amount of data loss during handoff mechanism as explained in [6,16]; the increase in shadow areas increases the interference. Accordingly, an optimum choice of the transmit power of the surrounding APs must be made.…”

Section: Proposed Modelmentioning

confidence: 99%

“…Consequently, the shadow area between two adjacent APs will also increase. It has been shown in [6,16] that there is a high probability of packet loss in the shadow area during handoff.…”

Section: Evaluation Techniquesmentioning

confidence: 99%

“…60Km/hr is assumed to be the maximum speed in the light urban area under consideration. At a speed of 6Km/hr [6], it is assumed that the MN is in the middle of a traffic jam and information sent by the CN is superfluous. An average speed of 33Km/hr is used besides 60Km/hr in the OPNET simulations.…”

Section: Evaluation Techniquesmentioning

confidence: 99%

“…When the first burst is received after ϕ is calculated at each transmit power of the operating APs and at different speeds. The transmit power of the system APs is initially set to 4mW [6]. Upon the failure of the center AP, the adjacent ones increase their transmit power.…”

Section: Evaluation Techniquesmentioning

confidence: 99%

“…In [6,10,14,16], a sector consisting of 7 Access Points (AP) in hexagon shape ( Fig. 1) is introduced as a building block of a WiFi communication scheme.…”

Section: Proposed Modelmentioning

confidence: 99%

See 4 more Smart Citations

Fault-tolerant access points in a mobile IPV6 WiFi light urban traffic communication model

Daoud

Amer

2008

2008 Canadian Conference on Electrical and Computer Engineering

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This paper presents a mechanism to evaluate Fault-Tolerant WiFi network performance in a mobile environment. FaultTolerance at the Access Point (AP) level is presented in a degraded performance mode. In case of an Access Point (AP) failure the surrounding APs increase their power to compensate for this failure. Mobile IPv6 is used as mobile protocol for the moving entities. A new metric ϕ is introduced to evaluate system performance under degraded performance. This metric takes into account the moving speed of the Mobile Nodes (MN) as well as the operating power of the APs.

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Section: Proposed Modelmentioning

confidence: 99%

“…Consequently, the shadow area between two adjacent APs will also increase. It has been shown in [6,16] that there is a high probability of packet loss in the shadow area during handoff.…”

Section: Evaluation Techniquesmentioning

confidence: 99%

Section: Evaluation Techniquesmentioning

confidence: 99%

Section: Evaluation Techniquesmentioning

confidence: 99%

“…In [6,10,14,16], a sector consisting of 7 Access Points (AP) in hexagon shape ( Fig. 1) is introduced as a building block of a WiFi communication scheme.…”

Section: Proposed Modelmentioning

confidence: 99%

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Fault-tolerant access points in a mobile IPV6 WiFi light urban traffic communication model

Daoud

Amer

2008

2008 Canadian Conference on Electrical and Computer Engineering

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New hybrid frequency reuse method for packet loss minimization in LTE network

Ali

El-Dakroury²,

El-Soudani

et al. 2015

Journal of Advanced Research

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This paper investigates the problem of inter-cell interference (ICI) in Long Term Evolution (LTE) mobile systems, which is one of the main problems that causes loss of packets between the base station and the mobile station. Recently, different frequency reuse methods, such as soft and fractional frequency reuse, have been introduced in order to mitigate this type of interference. In this paper, minimizing the packet loss between the base station and the mobile station is the main concern. Soft Frequency Reuse (SFR), which is the most popular frequency reuse method, is examined and the amount of packet loss is measured. In order to reduce packet loss, a new hybrid frequency reuse method is implemented. In this method, each cell occupies the same bandwidth of the SFR, but the total system bandwidth is greater than in SFR. This will provide the new method with a lot of new sub-carriers from the neighboring cells to reduce the ICI which represents a big problem in many applications and causes a lot of packets loss. It is found that the new hybrid frequency reuse method has noticeable improvement in the amount of packet loss compared to SFR method in the different frequency bands. Traffic congestion management in Intelligent Transportation system (ITS) is one of the important applications that is affected by the packet loss due to the large amount of traffic that is exchanged between the base station and the mobile node. Therefore, it is used as a studied application for the proposed frequency reuse method and the improvement in the amount of packet loss reached 49.4% in some frequency bands using the new hybrid frequency reuse method.

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Optimization of 802.11b/g Networks for High Mobility and Dynamic Data Applications

Ramzy

Milad

Morgan

et al. 2007

2007 9th International Conference on Telecommunications

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In this research, three honeycell WiFi In this research, the architecture developed in [9] is architectures using the 802.11b and 802.11g protocols are studied in the context of heavy-load applications involving studied. These architectures are designed to provide high dynamic data sent from a central node to mobile nodes. mobility for dynamic data applications and are optimizedWiFi architectures are proposed based on 802.1 lb and for deployment in moderately populated areas. OPNET is 802.1 1g [10][11][12]. MIPv6 is used for mobility support [13]. used in the study as the network simulator. At the OPNET These architectures are optimized to achieve a minimal default value of the packet reception power threshold, it is packet loss for mobile nodes that have speeds in the range found that the 802.11b architecture gives the best of 6-60Km/hr (walking to car speed in urban areas). performance. The optimum packet reception power The roposed architectures are simulated on OPNET threshold is then obtained for the three architectures. It is p p * [14]. Variables responsible for network performance are then found that an 802.11g architecture gives the best investigated in order to obtain the optimum performance performance amongst all the studied architectures. desired at different speeds, namely: wireless protocol

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Wireless Vehicle Communication for Traffic Control in Urban Areas

Cited by 11 publications

References 12 publications

Fault-tolerant access points in a mobile IPV6 WiFi light urban traffic communication model

Fault-tolerant access points in a mobile IPV6 WiFi light urban traffic communication model

New hybrid frequency reuse method for packet loss minimization in LTE network

Optimization of 802.11b/g Networks for High Mobility and Dynamic Data Applications

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