Capacity Analysis of Wireless Mesh Networks with Omni or Directional Antennas

Zhang, J.; Jia, Xiaohua

doi:10.1109/infcom.2009.5062251

Cited by 28 publications

(20 citation statements)

References 21 publications

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“…It typically has a main beam with the peak gain and side/back lobes with smaller gain. Since to model a real antenna with precise values for main beam and side-lobes/back-lobes is difficult, we use an approximate antenna pattern, which was first proposed in [10] and has been widely used in [9], [13], [14], [18], [19]. This approximate antenna model is called cone-sphere model, in which the main beam is model as a cone and the side/back lobes are model as a small bulb at the base of the cone, as shown in Fig.…”

Section: A Antenna Modelmentioning

confidence: 99%

“…Similar to other studies [9], [13], [14], [18], [19], we ignore sidelobes and backlobes in this paper. The reasons why we simplify the model are summarized as follows.…”

Section: A Antenna Modelmentioning

confidence: 99%

“…For example, [18], [19] found that using multiple directional antennas at each wireless node can significantly improve the network capacity, compared with the existing networks, such as SOMN networks and SDA networks. We define an MDA network to be a wireless network that uses multiple directional antennas and has the following characteristics:…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the connectivity of wireless networks with multiple directional antennas

Dai

Zhao

2012

2012 18th IEEE International Conference on Networks (ICON)

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Abstract-The network connectivity is one of important measures of the performance of wireless networks. However, most of current studies on the network connectivity only consider either an SOMN network, where each node is mounted with a single omni-directional antenna, or an SDA network, where each node is mounted with a single directional antenna. Using multiple directional antennas instead of a single directional antenna can potentially improve the network performance. In this paper, we investigate the connectivity of a novel network, in terms of an MDA network, where each node is mounted with multiple directional antennas. We found that MDA networks have much stronger network connectivity than other existing networks (such as SOMN and SDA networks), and its connectivity degree heavily depends on the number of antennas, the beamwidth of each antenna and the path loss factor. The enhancement mainly owes to the usage of multiple antennas and the longer transmission range of directional antennas.

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Section: A Antenna Modelmentioning

confidence: 99%

“…Similar to other studies [9], [13], [14], [18], [19], we ignore sidelobes and backlobes in this paper. The reasons why we simplify the model are summarized as follows.…”

Section: A Antenna Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the connectivity of wireless networks with multiple directional antennas

Dai

Zhao

2012

2012 18th IEEE International Conference on Networks (ICON)

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“…We analyze the capacity of sensor networks with omni antennas or directional antennas in this article. Part of the results on the capacity analysis for single channel networks were presented in Zhang and Jia [2009]. Our capacity analysis model differs from the previous work in the following aspects.…”

Section: Related Workmentioning

confidence: 99%

Analysis of capacity improvement by directional antennas in wireless sensor networks

Zhang

Jia

Zhou

2012

ACM Trans. Sen. Netw.

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In this article we analyze capacity improvement by directional antennas over omni antennas in wireless sensor networks. The capacity in our analysis is the end-to-end per-node throughput. We analyze the typical traffic pattern for sensor networks, where traffics are destined to or originated from the sink. The main results of our analysis are summarized as follows. (1) The network capacity is O(1/N) for both omni and directional antennas, where N is the number of sensor nodes in the network. (2) In the case of line deployment, the capacity ratio of directional antennas over omni antennas is bounded by (2q + 3)/(2q − 1), where q is the ratio of the interference radius to the transmission radius. (3) In the case of two-dimensional deployment, the capacity for using directional antennas is O( 1 θ ) for m = 2, and O( lg m θ 2 lg(1/θ) ) for m > 2, where m is the number of radios (antennas) on each node and θ is the beamwidth of antennas. (4) When there are n > 1 sinks, the capacity has a non-monotonic relationship with the transmission radius. The optimal transmission radius depends on the ratio of n/q. (5) The capacity ratio of directional antennas over omni antennas in multi-channel networks decreases as the channel number/radio number ratio c/m increases. ACM Reference Format:Zhang, J., Jia, X., and Zhou, Y. 2012. Analysis of capacity improvement by directional antennas in wireless sensor networks.

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“…In the current literature, there is a vast number of studies on WMNs with topics ranging from analysis [36] and modeling to architectural design [37]. The evaluation method of these studies is usually an analytical framework or a simulation platform.…”

Section: The Focus Of the Surveymentioning

confidence: 99%

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

Vural

Wei²,

Moessner

2013

IEEE Commun. Surv. Tutorials

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Abstract-Establishing wireless networks in urban areas that can provide ubiquitous Internet access to end-users is a central part of the efforts towards defining the Internet of the future. In recent years, wireless mesh network (WMN) backbone infrastructures are proposed as a cost effective technology to provide city-wide Internet access. Studies that evaluate the performance of city-wide mesh network deployments via experiments provide essential information on various challenges of building them. In this survey, we particularly focus on such studies and provide brief conclusions on the problems, benefits, and future research directions of city-wide WMNs.

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Capacity Analysis of Wireless Mesh Networks with Omni or Directional Antennas

Cited by 28 publications

References 21 publications

On the connectivity of wireless networks with multiple directional antennas

On the connectivity of wireless networks with multiple directional antennas

Analysis of capacity improvement by directional antennas in wireless sensor networks

Survey of Experimental Evaluation Studies for Wireless Mesh Network Deployments in Urban Areas Towards Ubiquitous Internet

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