Linear detectors can be based upon signal spatial, rather than temporal, characteristics and used to weight the sensors in an antenna array receiver. Such a receiver allows us to take advantage of the signal diversity offered by the multipath components of a signal. This provides an additional technique for distinguishing the signals of co-channel users with different enough multipath signature...

A timing detection scheme for multipath signals is proposed for wireless OFDM systems. The multipath signal timings are obtained in the process of suppressing the interference and obtaining the optimal weight vectors of an adaptive array antenna. The proposed multipath signal timing detection scheme can detect the multipath signals even with one sampling point timing delay. The optimal threshol...

In this paper wireless multipath fields are modelled using classes of orthogonal functional expansions based on the solutions to the Helmholtz (wave) equation. These expansions permit a multipath field—generated by any number of nearfield, farfield, specular and diffuse multipath reflections—to be modelled to any precision in a region of interest. Two expansions are provided, one suitable for m...

In the past many years different types of routing protocols, single-path and Multipath, have been designed for wireless sensor network. We have also found various multipath routing protocols available that send similar data to base station via multiple paths to increase reliability. We have found that a new simulation environment Castalia is developed based on OMNET++. They have provided implem...

Multipath hemispherical map (MHM) is a kind of multipath mitigation approach that takes advantage of the spatial repeatability of the multipath effect under an unchanged environment. This approach is not only suitable for static environments, but also for some kinematic platforms, such as a moving ship and airplane, where the dominant multipath effects come from the platform itself and the mult...

The ever-growing public interest on location and positioning services has originated a demand for a high performance Global Navigation Satellite System (GNSS), such as the Global Positioning System (GPS) or the future European satellite navigation system, Galileo. The performance of GNSS is subject to several errors, such as ionosphere delay, troposphere delay, receiver noise and multipath. Amo...

CMA (Constant Modulus Algorithm) adaptive arrays are considered a promising method in mobile communications to mitigate multipath fading and to suppress co-channel interference signals. However, since a CMA adaptive array assumes no a priori information of the desired signal, it is difficult to separate and combine the multipath rays of the desired signal. Therefore, when CMA is applied, the in...

Multipath potentially introduces a significant bias error into GPS code phase positioning solutions. That error is dependent on the amplitude, delay, phase, and phase rate of the multipath with respect to the line-of-sight. Many current mitigation techniques attempt to eliminate or reduce the impact of this error source. These techniques vary as widely in hardware and software complexity as the...

Most end devices are now equipped with multiple network interfaces. Applications can exploit all available interfaces and benefit from multipath transmission. Recently Multipath TCP (MPTCP) was proposed to implement multipath transmission at the transport layer and has attracted lots of attention from academia and industry. However, MPTCP only supports TCP-based applications and its multipath r...

Though state-of-the-art dual-frequency receivers are employed in the Continuous GPS arrays (CGPS), the CGPS coordinate time series are typically very noisy due to the effects of atmospheric biases, multipath, receiver noise, etc., with multipath generally being considered the major noise contributor. An adaptive Finite-duration Impulse Response filter, based on a least-mean-square algorithm, ha...