T Smart Antenna Working Group of the SDR Forum is developing an application-programming interface (API) supporting interoperability and compatibility of various kinds of smart antenna systems operating in a software-defi ned radio (SDR) network following an open-architecture model. The smart antenna API consists of three components: 1. SAControl component is used for controlling the smart anten...

Utilizing smart antennas in multi-hop wireless networks can boost their performance. However, most of the work done in the context of wireless adhoc and sensor networking assume ideal or over-simplistic antenna patterns that overrate the performance benefits. In this paper, we compute the optimal throughput of multi-hop wireless networks with realistic smart antenna model. Our goal is to evalua...

The smart antenna systems combine antenna arrays with digital signal processing (DSP) algorithms. In a smart antenna system a specialized signal processor computes the direction of arrival (DOA) of a user and also adds the strength of the signals from each antenna element together to form a beam towards the direction as computed by DOA. If additional users join in

This paper presents a simulation study of a smart antenna (SA) system based on direction-of-arrival (DOA) estimation is based on the MUltiple SIgnal Classification (MUSIC) algorithm for finding the Position Location (PL) of the desired user. The beamformer steer the main beam towards the desired user and nullify all other interferer, through adaptive beamforming using Least Mean Square (LMS) al...

1. Introduction With the rapid growth of various wireless services and applications calling for high data rate transmission there is a demand for developing robust wideband wireless technology. In order to counter count adverse phenomena such as multi-path signal propagation and interference, which become more pronounced in wideband systems, smart antennas can be employed as a remedy. So far, m...

Wireless communication systems utilize smart antennas. Smart antenna have digital signal processing unit. Smart antennas have ability to locate and track signals. Smart antenna performance depends on efficiency of digital signal processing algorithms. The Angle of Arrival (AOA) estimation algorithms is used for estimate the number of incidents signals on the antenna array and their angle of inc...

Smart antennas are systems attract lot attentions now and believably more in the future, as it can increase the capacity of mobile communication systems dramatically. Design of smart antenna systems combines the technologies of antenna design, signal processing, and hardware implementation. : A smart antenna is therefore a phased or adaptive array that adjusts to the environment. That is, for t...

The smart antenna systems combine antenna arrays with digital signal processing (DSP) algorithms. In a smart antenna system a specialized signal processor computes the direction of arrival (DOA) of a user and also adds the strength of the signals from each antenna element together to form a beam towards the direction as computed by DOA. If additional users join in the system, the adaptive anten...

This paper presents a procedure used to calibrate a smart antenna array to compensate for channel amplitude and phase mismatch as well as mutual coupling effects between antenna array elements. A theoretical basis for this calibration procedure in terms of the smart antenna mathematical model is given. Direction of Arrival (DOA) analysis of data collected using the Smart Antenna Testbed at the ...

In this paper, the design of 4x4 smart antenna array antenna along with the butler matrix network which can be used for beamforming (pointing an antenna array). Unlike the conventional schemes where an array of microstrip patch antennas are used, the radiation becomes omnidirectional and therefore the power losses are more. In the proposed design, the designed antenna is operating at the freque...