For the practical simulation and performance evaluation of mobile-to-mobile (M2M) communication systems, it is desirable to develop accurate M2M channel simulation models for more realistic scenarios of non-isotropic scattering. In this paper, by using a ‘double-ring’ concept to describe M2M non-isotropic scattering environments, we propose new deterministic and stochastic sum-of-sinusoids (SoS...

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...

We examine the utility of a state space approach to pulse train signal modelling and address the problem of jointly estimating the angle of arrival (AOA) and periodicity of an intercepted radar pulse train signal. Kalman lter based techniques are developed and the mean square error performance of the estimators evaluated for two separate state space models. Robust methods are also suggested and...

In this paper, we adopt the Levenberg-Marquardt (LM) algorithm to implement the nonlinear multivariable optimization for azimuth/elevation angle-of-arrival (AOA) estimation based on the Capon beamforming algorithm. The formulation is based on the fact that the cost function of the Capon algorithm can be expressed in a least-squares form. The performance in terms of the root mean square error (R...

Although subspace-based methods for estimating the Angle of Arrival (AOA) require a precise array response to achieve highly accurate results, it is difficult to obtain this response in practice even though the antennas are calibrated. Therefore, a method of compensating for errors in calibration is required. This paper proposes a procedure to enable precise AOA estimates to be obtained in a re...

A simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) microwave signals. The applies two parallel push–pull Mach–Zehnder modulators (MZMs) for carrier suppression dual-sideband (CS-DSB) modulation. introduction reference signal results in a DFS measurement without direction ambiguity. can be determined by ...

A new three dimensional (3D) ray-tracing propagation prediction tool (3D MRT-1) is being developed for characterisation of wideband mobile radio channel. It calculates the amplitude, phase, angle-of-departure (AOD), angle-of-arrival (AOA), optical path length and received field strength for each valid reflected or diffracted ray path. It also constructs the power delay profile (PDP) and extract...

A design of sub-Nyquist uniform linear array receiver with different sampling rates is proposed, investigated, and reported in this paper. The proposed architecture increases functionality conventional modest modifications. Simulation results show that the capable determining angle arrival (AOA) signal frequencies multiple continuous-wave/chirp signals over several Nyquist zones.

A new distributed algorithm is described in this paper for localizing sensor network nodes in Wireless Sensor Networks (WSN). The algorithm shares a common three-phase structure: (1) determine node-beacon distances, (2) build a cost function for every sensor node, and (3) compute the coordinate of the node. The coordinates of the sensor nodes are computed using either the Davidson-Fletcher-Powe...

In this paper, we propose a short ranging middleware built on WUSB (Wireless USB) over WBAN (Wireless Body Area Networks) hierarchical protocol for body sensor networks. The proposed middleware platform is composed of time-synchronization and optimal short ranging solution. The optimal ranging solution is proposed through comparison of experiment results from ToA (Time of Arrival), TDoA (Time D...