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643
Dual Polarized Omnidirectional Antenna
"... When performing measurements of polarization diversity, it is common to use two dipole antennas, there one of the dipoles is rotated 90 degrees to measure horizontal polarization. A better approach would be to use a dual polarized antenna. In this thesis a dual polarized omnidirectional antenna, wit ..."
Abstract
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When performing measurements of polarization diversity, it is common to use two dipole antennas, there one of the dipoles is rotated 90 degrees to measure horizontal polarization. A better approach would be to use a dual polarized antenna. In this thesis a dual polarized omnidirectional antenna
On the scalability and capacity of wireless networks with omnidirectional antennas
- in IPSN
, 2004
"... ABSTRACT * We consider a wireless network of N nodes equipped with omnidirectional antennas, and we extend the capacity results of some previous works by finding bounds on the maximum achievable per-node end-to-end throughput, λ e, while using a general network model and a bounded propagation model. ..."
Abstract
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Cited by 14 (2 self)
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ABSTRACT * We consider a wireless network of N nodes equipped with omnidirectional antennas, and we extend the capacity results of some previous works by finding bounds on the maximum achievable per-node end-to-end throughput, λ e, while using a general network model and a bounded propagation model
ON THE CAPACITY OF WIRELESS SENSOR NETWORKS WITH OMNIDIRECTIONAL ANTENNAS
- REVISTA DA SOCIEDADE BRASILEIRA DE TELECOMUNICAÇÕES
, 2004
"... We establish some new results on the capacity of wireless sensor networks that employ single-userdetection, and we present the implications of our results on the scalability of such networks. In particular, we find bounds on the maximum achievable per-sensor end-to-end throughput, λe, and the maxim ..."
Abstract
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Cited by 1 (1 self)
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wireless sensor network of N sensor nodes and M destination nodes that are equipped with omnidirectional antennas: (1) λe is Θ(1/N) under very general conditions that we identify in this paper. (2) Nt max has an upper bound that does not depend on N, which is the simultaneous transmission capacity
New Designs for WLAN Omnidirectional Antenna Array Synthesis
"... Abstract:- A new design for a concave and convex polarized coplanar waveguide CPW fed 2x2 antenna arrays has been analyzed. The proposed antennas have a symmetric and uniplanar geometry with concave or convex microstrip. The basic structure consists of 4 half wavelength patches with K-form (for the ..."
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Abstract:- A new design for a concave and convex polarized coplanar waveguide CPW fed 2x2 antenna arrays has been analyzed. The proposed antennas have a symmetric and uniplanar geometry with concave or convex microstrip. The basic structure consists of 4 half wavelength patches with K-form (for
Analysis and Design of a 45 Slant-Polarized Omnidirectional Antenna
"... Abstract—A 45 slant-polarized omnidirectional antenna is proposed for mobile communication base stations. The proposed antenna consists of four printed crossed-dipole elements which are rolled up into a cylinder for omnidirectional radiation. Each crossed-dipole element is composed of a horizontal d ..."
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Abstract—A 45 slant-polarized omnidirectional antenna is proposed for mobile communication base stations. The proposed antenna consists of four printed crossed-dipole elements which are rolled up into a cylinder for omnidirectional radiation. Each crossed-dipole element is composed of a horizontal
Directional versus Omnidirectional Antennas for Energy Consumption and k-Connectivity of Networks of Sensors
, 2004
"... A network is k-connected if it remains connected after the removal of any k − 1 of its nodes. Assume that n sensors, modeled here as (omni)directional antennas, are dropped randomly and independently with the uniform distribution on the interior of a unit length segment or a unit square. We derive s ..."
Abstract
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Cited by 11 (4 self)
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A network is k-connected if it remains connected after the removal of any k − 1 of its nodes. Assume that n sensors, modeled here as (omni)directional antennas, are dropped randomly and independently with the uniform distribution on the interior of a unit length segment or a unit square. We derive
Making SAHN-MAC Independent of Single Frequency Channel and Omnidirectional Antennas
- In IASTED NCS
, 2005
"... Provision for quality of service (QoS) for real-time traffic in multi-hop ad-hoc wireless networks with shared medium and a contention based media access control (MAC) protocol is very challenging. In our previous work we have explained the challenges in detail and provided a solution within the con ..."
Abstract
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Cited by 2 (1 self)
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SAHN-MAC independent of single frequency channel and omnidirectional antenna. The improvements have been evaluated via simulations.
Horizontally polarized omnidirectional dielectric resonator antenna
- in Proc. APMC
, 2011
"... Abstract—This paper presents the concept of using cylindrical dielectric resonator antenna (DRA) as horizontally polarized omnidirectional antenna. The design is achieved through the excitation of the ..."
Abstract
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Cited by 1 (1 self)
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Abstract—This paper presents the concept of using cylindrical dielectric resonator antenna (DRA) as horizontally polarized omnidirectional antenna. The design is achieved through the excitation of the
Medium Access Control Protocols Using Directional Antennas in Ad Hoc Networks
- In Proceedings of IEEE Conference on Computer Communications (INFOCOM
, 1999
"... Using directional antennas can be beneficial for wireless ad hoc networks consisting of a collection of wireless hosts. To best utilize directional antennas, a suitable Medium Access Control (MAC) protocol must be designed. Current MAC protocols, such as the IEEE 802.11 standard, do not benefit when ..."
Abstract
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Cited by 253 (14 self)
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when using directional antennas, because these protocols have been designed for omnidirectional antennas. In this paper, we attempt to design new MAC protocols suitable for ad hoc networks based on directional antennas. Keywords---MAC protocols, Directional Antennas, Ad Hoc Networks. I. INTRODUCTION
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